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Said M, Gaál E, Farkas A, Molnár I, Bartoš J, Doležel J, Cabrera A, Endo TR. Gametocidal genes: from a discovery to the application in wheat breeding. FRONTIERS IN PLANT SCIENCE 2024; 15:1396553. [PMID: 38711610 PMCID: PMC11070591 DOI: 10.3389/fpls.2024.1396553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/02/2024] [Indexed: 05/08/2024]
Abstract
Some species of the genus Aegilops, a wild relative of wheat, carry chromosomes that after introducing to wheat exhibit preferential transmission to progeny. Their selective retention is a result of the abortion of gametes lacking them due to induced chromosomal aberrations. These chromosomes are termed Gametocidal (Gc) and, based on their effects, they are categorized into three types: mild, intense or severe, and very strong. Gc elements within the same homoeologous chromosome groups of Aegilops (II, III, or IV) demonstrate similar Gc action. This review explores the intriguing dynamics of Gc chromosomes and encompasses comprehensive insights into their source species, behavioral aspects, mode of action, interactions, suppressions, and practical applications of the Gc system in wheat breeding. By delving into these areas, this work aims to contribute to the development of novel plant genetic resources for wheat breeding. The insights provided herein shed light on the utilization of Gc chromosomes to produce chromosomal rearrangements in wheat and its wild relatives, thereby facilitating the generation of chromosome deletions, translocations, and telosomic lines. The Gc approach has significantly advanced various aspects of wheat genetics, including the introgression of novel genes and alleles, molecular markers and gene mapping, and the exploration of homoeologous relationships within Triticeae species. The mystery lies in why gametes possessing Gc genes maintain their normality while those lacking Gc genes suffer abnormalities, highlighting an unresolved research gap necessitating deeper investigation.
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Affiliation(s)
- Mahmoud Said
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czechia
- Field Crops Research Institute, Agricultural Research Centre, Giza, Egypt
| | - Eszter Gaál
- Agricultural Institute, Hungarian Research Network (HUN-REN) Centre for Agricultural Research, Martonvásár, Hungary
| | - András Farkas
- Agricultural Institute, Hungarian Research Network (HUN-REN) Centre for Agricultural Research, Martonvásár, Hungary
| | - István Molnár
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czechia
- Agricultural Institute, Hungarian Research Network (HUN-REN) Centre for Agricultural Research, Martonvásár, Hungary
| | - Jan Bartoš
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czechia
| | - Jaroslav Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czechia
| | - Adoración Cabrera
- Genetics Department, Escuela Técnica Superior de Ingeniería Agronómica y de Montes (ETSIAM), Agrifood Campus of International Excellence (ceiA3), University of Córdoba, Córdoba, Spain
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Feng X, Du X, Wang S, Deng P, Wang Y, Shang L, Tian Z, Wang C, Chen C, Zhao J, Ji W. Identification and DNA Marker Development for a Wheat- Leymus mollis 2Ns (2D) Disomic Chromosome Substitution. Int J Mol Sci 2022; 23:ijms23052676. [PMID: 35269816 PMCID: PMC8911044 DOI: 10.3390/ijms23052676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/17/2022] [Accepted: 02/27/2022] [Indexed: 02/05/2023] Open
Abstract
Leymus mollis (2n = 4x = 28, NsNsXmXm), a wild relative of common wheat (Triticum aestivum L.), carries numerous loci which could potentially be used in wheat improvement. In this study, line 17DM48 was isolated from the progeny of a wheat and L. mollis hybrid. This line has 42 chromosomes forming 21 bivalents at meiotic metaphase I. Genomic in situ hybridization (GISH) demonstrated the presence of a pair chromosomes from the Ns genome of L. mollis. This pair substituted for wheat chromosome 2D, as shown by fluorescence in situ hybridization (FISH), DNA marker analysis, and hybridization to wheat 55K SNP array. Therefore, 17DM48 is a wheat-L. mollis 2Ns (2D) disomic substitution line. It shows longer spike and a high level of stripe rust resistance. Using specific-locus amplified fragment sequencing (SLAF-seq), 13 DNA markers were developed to identify and trace chromosome 2Ns of L. mollis in wheat background. This line provides a potential bridge germplasm for genetic improvement of wheat stripe rust resistance.
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Affiliation(s)
- Xianbo Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Xin Du
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Siwen Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Pingchuan Deng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Yongfu Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Lihui Shang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Zengrong Tian
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Changyou Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Chunhuan Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
| | - Jixin Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
- Correspondence: (J.Z.); (W.J.)
| | - Wanquan Ji
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, China; (X.F.); (X.D.); (S.W.); (P.D.); (Y.W.); (L.S.); (Z.T.); (C.W.); (C.C.)
- Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, Xianyang 712100, China
- Correspondence: (J.Z.); (W.J.)
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Yang G, Zheng Q, Hu P, Li H, Luo Q, Li B, Li Z. Cytogenetic identification and molecular marker development for the novel stripe rust-resistant wheat- Thinopyrum intermedium translocation line WTT11. ABIOTECH 2021; 2:343-356. [PMID: 36304423 PMCID: PMC9590478 DOI: 10.1007/s42994-021-00060-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/23/2021] [Indexed: 02/02/2023]
Abstract
Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive diseases of wheat (Triticum aestivum L.) worldwide. Xiaoyan 78829, a partial amphidiploid developed by crossing common wheat with Thinopyrum intermedium, is immune to wheat stripe rust. To transfer the resistance gene of this excellent germplasm resource to wheat, the translocation line WTT11 was produced by pollen irradiation and assessed for immunity to stripe rust races CYR32, CYR33 and CYR34. A novel stripe rust-resistance locus derived from Th. intermedium was confirmed by linkage and diagnostic marker analyses. Molecular cytogenetic analyses revealed that WTT11 carries a TTh·2DL translocation. The breakpoint of 1B was located at 95.5 MB, and the alien segments were found to be homoeologous to wheat-group chromosomes 6 and 7 according to a wheat660K single-nucleotide polymorphism (SNP) array analysis. Ten previously developed PCR-based markers were confirmed to rapidly trace the alien segments of WTT11, and 20 kompetitive allele-specific PCR (KASP) markers were developed to enable genotyping of Th. intermedium and common wheat. Evaluation of agronomic traits in two consecutive crop seasons uncovered some favorable agronomic traits in WTT11, such as lower plant height and longer main panicles, that may be applicable to wheat improvement. As a novel genetic resource, the new resistance locus may be useful for wheat disease-resistance breeding. Supplementary Information The online version contains supplementary material available at 10.1007/s42994-021-00060-3.
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Affiliation(s)
- Guotang Yang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China.,University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Qi Zheng
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China
| | - Pan Hu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China
| | - Hongwei Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China
| | - Qiaoling Luo
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China
| | - Bin Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China
| | - Zhensheng Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101 China
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Grewal S, Othmeni M, Walker J, Hubbart-Edwards S, Yang CY, Scholefield D, Ashling S, Isaac P, King IP, King J. Development of Wheat- Aegilops caudata Introgression Lines and Their Characterization Using Genome-Specific KASP Markers. FRONTIERS IN PLANT SCIENCE 2020; 11:606. [PMID: 32477394 PMCID: PMC7240103 DOI: 10.3389/fpls.2020.00606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/21/2020] [Indexed: 05/23/2023]
Abstract
Aegilops caudata L. [syn. Ae. markgrafii (Greuter) Hammer], is a diploid wild relative of wheat (2n = 2x = 14, CC) and a valuable source for new genetic diversity for wheat improvement. It has a variety of disease resistance factors along with tolerance for various abiotic stresses and can be used for wheat improvement through the generation of genome-wide introgressions resulting in different wheat-Ae. caudata recombinant lines. Here, we report the generation of nine such wheat-Ae. caudata recombinant lines which were characterized using wheat genome-specific KASP (Kompetitive Allele Specific PCR) markers and multi-color genomic in situ hybridization (mcGISH). Of these, six lines have stable homozygous introgressions from Ae. caudata and will be used for future trait analysis. Using cytological techniques and molecular marker analysis of the recombinant lines, 182 KASP markers were physically mapped onto the seven Ae. caudata chromosomes, of which 155 were polymorphic specifically with only one wheat subgenome. Comparative analysis of the physical positions of these markers in the Ae. caudata and wheat genomes confirmed that the former had chromosomal rearrangements with respect to wheat, as previously reported. These wheat-Ae. caudata recombinant lines and KASP markers are useful resources that can be used in breeding programs worldwide for wheat improvement. Additionally, the genome-specific KASP markers could prove to be a valuable tool for the rapid detection and marker-assisted selection of other Aegilops species in a wheat background.
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Affiliation(s)
- Surbhi Grewal
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Manel Othmeni
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Jack Walker
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Stella Hubbart-Edwards
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Cai-yun Yang
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Duncan Scholefield
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Stephen Ashling
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Peter Isaac
- IDna Genetics Ltd., Norwich Research Park, Norwich, United Kingdom
| | - Ian P. King
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Julie King
- Division of Plant and Cop Sciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Nottingham, United Kingdom
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Algwaiz HI. Cytological Effect of Gamma Radiation on Selected Mutants of Wheat <i>Triticum aestivum</i> L. in M3 Generation. Pak J Biol Sci 2020; 22:607-613. [PMID: 31930860 DOI: 10.3923/pjbs.2019.607.613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Wheat (Triticum aestivum L.) offers some unique opportunities for the induction and exploitation of agronomic value. The use of gamma radiation has been proven to be an effective method to induce genetic variation in crops. We aimed to determine genetically stable mutants of wheat which could be utilized for breeding purposes. MATERIALS AND METHODS We did a cytological investigation of induced mutant's behavior and chiasma frequency. Selected mutant types induced in dry and soaked seeds were treated with different doses of gamma rays. Each treated sample and control were subjected to cytological examination of the fixed pollen mother cells in various meiotic stages. RESULTS The percentage of the total abnormal cells significantly increased in one mutant and significantly decreased in the other mutant. The percentage of total abnormal cells did not diminish from the first to the second meiotic division. The types of meiotic anomalies found included laggards (56.51%), univalent (9.43%), stickiness (45.45%) and bridges (19.32%). There were genotypic differences in the frequency of occurrence of multivalent (trivalent and quadrivalents). A marked reduction in the number of rod and ring bivalent/cell in some genotypes were noticed. The frequency of chiasmata per pollen mother cell was reduced subsequently. Depression index of mutants was negative compared with controls or treatments except for a few genotypes. CONCLUSION Selected mutants of wheat tend to be cytologically stable and can therefore, be utilized for breeding purposes.
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Kwiatek MT, Kurasiak-Popowska D, Mikołajczyk S, Niemann J, Tomkowiak A, Weigt D, Nawracała J. Cytological markers used for identification and transfer of Aegilops spp. chromatin carrying valuable genes into cultivated forms of Triticum. COMPARATIVE CYTOGENETICS 2019; 13:41-59. [PMID: 30854169 PMCID: PMC6403195 DOI: 10.3897/compcytogen.v13i1.30673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/30/2019] [Indexed: 05/26/2023]
Abstract
There are many reports describing chromosome structure, organization and evolution within goatgrasses (Aegilops spp.). Chromosome banding and fluorescence in situ hybridization techniques are main methods used to identify Aegilops Linnaeus, 1753 chromosomes. These data have essential value considering the close genetic and genomic relationship of goatgrasses with wheat (Triticumaestivum Linnaeus, 1753) and triticale (× Triticosecale Wittmack, 1899). A key question is whether those protocols are useful and effective for tracking Aegilops chromosomes or chromosome segments in genetic background of cultivated cereals. This article is a review of scientific reports describing chromosome identification methods, which were applied for development of prebreeding plant material and for transfer of desirable traits into Triticum Linnaeus, 1753 cultivated species. Moreover, this paper is a resume of the most efficient cytomolecular markers, which can be used to follow the introgression of Aegilops chromatin during the breeding process.
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Affiliation(s)
- Michał T. Kwiatek
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
| | - Danuta Kurasiak-Popowska
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
| | - Sylwia Mikołajczyk
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
| | - Janetta Niemann
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
| | - Agnieszka Tomkowiak
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
| | - Dorota Weigt
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
| | - Jerzy Nawracała
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Dojazd 11, 60-632, Poznań, PolandPoznań University of Life SciencesPoznańPoland
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An D, Ma P, Zheng Q, Fu S, Li L, Han F, Han G, Wang J, Xu Y, Jin Y, Luo Q, Zhang X. Development and molecular cytogenetic identification of a new wheat-rye 4R chromosome disomic addition line with resistances to powdery mildew, stripe rust and sharp eyespot. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2019; 132:257-272. [PMID: 30374527 DOI: 10.1007/s00122-018-3214-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 10/05/2018] [Indexed: 05/07/2023]
Abstract
A wheat-rye 4R chromosome disomic addition line with resistances to powdery mildew, stripe rust, sharp eyespot and high kernel number per spike was developed and characterized by molecular cytogenetic method as novel resistant germplasm. Rye (Secale cereale L.), a close relative of common wheat, is an important and valuable gene donor with multiple disease resistance for wheat improvement. However, resistance genes derived from rye have successively lost resistance to pathogens due to the coevolution of pathogen virulence and host resistance. Development and identification of new effective resistance gene sources from rye therefore are of special importance and urgency. In the present study, a wheat-rye line WR35 was produced through distant hybridization, embryo rescue culture, chromosome doubling and backcrossing. WR35 was then proven to be a new wheat-rye 4R disomic addition line using sequential GISH (genomic in situ hybridization), mc-FISH (multicolor fluorescence in situ hybridization) and ND-FISH (non-denaturing FISH) with multiple probes, mc-GISH (multicolor GISH), rye chromosome arm-specific marker analysis and SLAF-seq (specific-locus amplified fragment sequencing) analysis. At the adult stage, WR35 exhibited high levels of resistance to the powdery mildew (Blumeria graminis f. sp. tritici, Bgt) and stripe rust (Puccinia striiformis f. sp. tritici, Pst) pathogens prevalent in China, and a highly virulent isolate of Rhizoctonia cerealis, the cause of wheat sharp eyespot. At the seedling stage, it was highly resistant to 22 of 23 Bgt isolates and four Pst races. Based on its disease responses to different pathogen isolates, WR35 may possess resistance gene(s) for powdery mildew, stripe rust and sharp eyespot, which differed from the known resistance genes from rye. In addition, WR35 was cytologically stable and produced high kernel number per spike. Therefore, WR35 with multi-disease resistances and desirable agronomic traits should serve as a promising bridging parent for wheat chromosome engineering breeding.
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Affiliation(s)
- Diaoguo An
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China.
| | - Pengtao Ma
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Qi Zheng
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Shulan Fu
- Province Key Laboratory of Plant Breeding and Genetics, Sichuan Agriculture University, Chengdu, Sichuan, China
| | - Lihui Li
- The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fangpu Han
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Guohao Han
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Jing Wang
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Yunfeng Xu
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Yuli Jin
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Qiaoling Luo
- The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xiaotian Zhang
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
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Wang H, Yu Z, Li B, Lang T, Li G, Yang Z. Characterization of New Wheat-Dasypyrum breviaristatum Introgression Lines with Superior Gene(s) for Spike Length and Stripe Rust Resistance. Cytogenet Genome Res 2018; 156:117-125. [PMID: 30308502 DOI: 10.1159/000493562] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2018] [Indexed: 01/16/2023] Open
Abstract
Dasypyrum breviaristatum (genome VbVb) contains potentially important traits for commercial wheat production. Chromosome 2Vb of D. breviaristatum carries several desirable agronomic characters, including long spike length as well as enhanced resistance to stripe rust, which are expressed in a common wheat background. In this study, wheat-D. breviaristatum 2Vb deletion lines were produced and identified by fluorescence in situ hybridization (FISH), and 74 molecular markers specific to D. breviaristatum chromosome 2Vb were physically localized in 4 distinct chromosomal regions. New wheat-D. breviaristatum 2Vb translocation lines were also characterized by FISH. The breakpoint of the translocation T3AS.3AL-2VbS was determined by physically mapped molecular markers. Field evaluation revealed that genes affecting plant height and spike length are located on fraction length (FL) 0.65-1.00 of 2VbS, while the stripe rust resistance gene(s) are located on FL 0.40-1.00 of D. breviaristatum chromosome 2VbL. The newly characterized wheat-Dasypyrum chromosomal introgressions are of potential value for the improvement of the yield and disease resistance of wheat.
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Danilova TV, Akhunova AR, Akhunov ED, Friebe B, Gill BS. Major structural genomic alterations can be associated with hybrid speciation in Aegilops markgrafii (Triticeae). THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 92:317-330. [PMID: 28776783 DOI: 10.1111/tpj.13657] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/21/2017] [Accepted: 07/31/2017] [Indexed: 05/19/2023]
Abstract
During evolutionary history many grasses from the tribe Triticeae have undergone interspecific hybridization, resulting in allopolyploidy; whereas homoploid hybrid speciation was found only in rye. Homoeologous chromosomes within the Triticeae preserved cross-species macrocolinearity, except for a few species with rearranged genomes. Aegilops markgrafii, a diploid wild relative of wheat (2n = 2x = 14), has a highly asymmetrical karyotype that is indicative of chromosome rearrangements. Molecular cytogenetics and next-generation sequencing were used to explore the genome organization. Fluorescence in situ hybridization with a set of wheat cDNAs allowed the macrostructure and cross-genome homoeology of the Ae. markgrafii chromosomes to be established. Two chromosomes maintained colinearity, whereas the remaining were highly rearranged as a result of inversions and inter- and intrachromosomal translocations. We used sets of barley and wheat orthologous gene sequences to compare discrete parts of the Ae. markgrafii genome involved in the rearrangements. Analysis of sequence identity profiles and phylogenic relationships grouped chromosome blocks into two distinct clusters. Chromosome painting revealed the distribution of transposable elements and differentiated chromosome blocks into two groups consistent with the sequence analyses. These data suggest that introgressive hybridization accompanied by gross chromosome rearrangements might have had an impact on karyotype evolution and homoploid speciation in Ae. markgrafii.
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Affiliation(s)
- Tatiana V Danilova
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
| | - Alina R Akhunova
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
| | - Eduard D Akhunov
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
| | - Bernd Friebe
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
| | - Bikram S Gill
- Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
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10
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Grewal S, Gardiner LJ, Ndreca B, Knight E, Moore G, King IP, King J. Comparative Mapping and Targeted-Capture Sequencing of the Gametocidal Loci in Aegilops sharonensis. THE PLANT GENOME 2017; 10. [PMID: 28724065 DOI: 10.3835/plantgenome2016.09.0090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Gametocidal (Gc) chromosomes or elements in species such as Eig are preferentially transmitted to the next generation through both the male and female gametes when introduced into wheat ( L.). Furthermore, any genes, such as genes that control agronomically important traits, showing complete linkage with Gc elements, are also transmitted preferentially to the next generation without the need for selection. The mechanism for the preferential transmission of the Gc elements appears to occur by the induction of extensive chromosome damage in any gametes that lack the Gc chromosome in question. Previous studies on the mechanism of the Gc action in indicates that at least two linked elements are involved. The first, the element, induces chromosome breakage in gametes, which have lost the Gc elements while the second, the element, prevents the chromosome breakage action of the breaker element in gametes which carry the Gc elements. In this study, we have used comparative genomic studies to map 54 single nucleotide polymorphism (SNP) markers in an 4S introgression segment in wheat and have also identified 18 candidate genes in for the breaker element through targeted sequencing of this 4S introgression segment. This valuable genomic resource will aide in further mapping the Gc locus that could be exploited in wheat breeding to produce new, superior varieties of wheat.
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11
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Niranjana M. Gametocidal genes of Aegilops: segregation distorters in wheat-Aegilops wide hybridization. Genome 2017; 60:639-647. [PMID: 28654760 DOI: 10.1139/gen-2017-0023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aegilops is a genus belonging to the family Poaceace, which have played an indispensible role in the evolution of bread wheat and continues to do so by transferring genes by wide hybridization. Being the secondary gene pool of wheat, gene transfer from Aegilops poses difficulties and segregation distortion is common. Gametocidal genes are the most well characterized class of segregation distorters reported in interspecific crosses of wheat with Aegilops. These "selfish" genetic elements ensure their preferential transmission to progeny at the cost of gametes lacking them without providing any phenotypic benefits to the plant, thereby causing a proportional reduction in fertility. Gametocidal genes (Gc) have been reported in different species of Aegilops belonging to the sections Aegilops (Ae. geniculata and Ae. triuncialis), Cylindropyrum (Ae. caudata and Ae. cylindrica), and Sitopsis (Ae. longissima, Ae. sharonensis, and Ae. speltoides). Gametocidal activity is mostly confined to 2, 3, and 4 homeologous groups of C, S, S1, Ssh, and Mg genomes. Removal of such genes is necessary for successful alien gene introgression and can be achieved by mutagenesis or allosyndetic pairing. However, there are some instances where Gc genes are constructively utilized for development of deletion stocks in wheat, improving genetic variability and chromosome engineering.
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Affiliation(s)
- M Niranjana
- Indian Agricultural Research Institute, New Delhi, India.,Indian Agricultural Research Institute, New Delhi, India
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12
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Kang HY, Tang L, Li DY, Diao CD, Zhu W, Tang Y, Wang Y, Fan X, Xu LL, Zeng J, Sha LN, Yu XF, Zhang HQ, Zhou YH. Cytogenetic study and stripe rust response of the derivatives from a wheat - Thinopyrum intermedium - Psathyrostachys huashanica trigeneric hybrid. Genome 2016; 60:393-401. [PMID: 28177834 DOI: 10.1139/gen-2016-0135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
To transfer multiple desirable alien genes into common wheat, we previously reported a new trigeneric hybrid synthesized by crossing a wheat - Thinopyrum intermedium partial amphiploid with wheat - Psathyrostachys huashanica amphiploid. Here, the meiotic behavior, chromosome constitution, and stripe rust resistance of F5 derivatives from the wheat - Th. intermedium - P. huashanica trigeneric hybrid were studied. Cytological analysis indicated the F5 progenies had chromosome numbers of 42-50 (average 44.96). The mean meiotic configuration was 1.28 univalents, 21.74 bivalents, 0.04 trivalents, and 0.02 tetravalents per pollen mother cell. In 2n = 42 lines, the average pairing configuration was 0.05 I + 19.91 II (ring) + 1.06 II (rod) + 0.003 IV, suggesting these lines were cytologically stable. Most lines with 2n = 43, 44, 46, 48, or 50, bearing a high frequency of univalents or multivalents, showed abnormal meiotic behavior. Genomic in situ hybridization karyotyping results revealed that 25 lines contained 1-7 Th. intermedium chromosomes, but no P. huashanica chromosomes were found among the 27 self-pollinated progenies. At meiosis, univalents (1-5) possessing Th. intermedium hybridization signals were detected in 19 lines. Bivalents (1-3) expressing fluorescence signals were observed in 12 lines. Importantly, 21 lines harbored wheat - Th. intermedium chromosomal translocations with various alien translocation types. Additionally, two homozygous lines, K13-668-10 and K13-682-12, possessed a pair of wheat - Th. intermedium small fragmental translocations. Compared with the recurrent parent Zhong 3, most lines showed high resistance to the stripe rust (Puccinia striiformis f. sp. tritici) pathogens prevalent in China, including race V26/Gui22. This paper reports a highly efficient technical method for inducing alien translocation between wheat and Th. intermedium by trigeneric hybridization. These lines might be potentially valuable germplasm resources for further wheat improvement.
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Affiliation(s)
- Hou-Yang Kang
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Lin Tang
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Dai-Yan Li
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Cheng-Dou Diao
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Wei Zhu
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Yao Tang
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Yi Wang
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Xing Fan
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Li-Li Xu
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Jian Zeng
- b College of Resources, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Li-Na Sha
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Xiao-Fang Yu
- c College of Landscape Architecture, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Hai-Qin Zhang
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
| | - Yong-Hong Zhou
- a Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu 611130, Sichuan, China
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13
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Du P, Zhuang L, Wang Y, Yuan L, Wang Q, Wang D, Dawadondup, Tan L, Shen J, Xu H, Zhao H, Chu C, Qi Z. Development of oligonucleotides and multiplex probes for quick and accurate identification of wheat and Thinopyrum bessarabicum chromosomes. Genome 2016; 60:93-103. [PMID: 27936984 DOI: 10.1139/gen-2016-0095] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In comparison with general FISH for preparing probes in terms of time and cost, synthesized oligonucleotide (oligo hereafter) probes for FISH have many advantages such as ease of design, synthesis, and labeling. Low cost and high sensitivity and resolution of oligo probes greatly simplify the FISH procedure as a simple, fast, and efficient method of chromosome identification. In this study, we developed new oligo and oligo multiplex probes to accurately and efficiently distinguish wheat (Triticum aestivum, 2n = 6x, AABBDD) and Thinopyrum bessarabicum (2n = 2x = 14, JJ) chromosomes. The oligo probes contained more nucleotides or more repeat units that produced stronger signals for more efficient chromosome painting. Four Th. bessarabicum-specific oligo probes were developed based on genomic DNA sequences of Th. bessarabicum chromosome arm 4JL, and one of them (oligo DP4J27982) was pooled with the oligo multiplex #1 to simultaneously detect wheat and Th. bessarabicum chromosomes for quick and accurate identification of Chinese Spring (CS) - Th. bessarabicum alien chromosome introgression lines. Oligo multiplex #4 revealed chromosome variations among CS and eight wheat cultivars by a single round of FISH analysis. This research demonstrated the high efficiency of using oligos and oligo multiplexes in chromosome identification and manipulation.
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Affiliation(s)
- Pei Du
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Lifang Zhuang
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanzhi Wang
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Li Yuan
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Qing Wang
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Danrui Wang
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Dawadondup
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Lijun Tan
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Jian Shen
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Haibin Xu
- b Faculty of Biology and Environmental Science, Nanjing Forestry University, Nanjing 210037, China
| | - Han Zhao
- c Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Chenggen Chu
- d Monsanto Company, 21120 Hwy 30, Filer, ID 83328, USA
| | - Zengjun Qi
- a State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
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14
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Ma X, Wang Q, Wang Y, Ma J, Wu N, Ni S, Luo T, Zhuang L, Chu C, Cho SW, Tsujimoto H, Qi Z. Chromosome aberrations induced by zebularine in triticale. Genome 2016; 59:485-92. [DOI: 10.1139/gen-2016-0047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Chromosome engineering is an important approach for generating wheat germplasm. Efficient development of chromosome aberrations will facilitate the introgression and application of alien genes in wheat. In this study, zebularine, a DNA methylation transferase inhibitor, was successfully used to induce chromosome aberrations in the octoploid triticale cultivar Jinghui#1. Dry seeds were soaked in zebularine solutions (250, 500, and 750 μmol/L) for 24 h, and the 500 μmol/L treatment was tested in three additional treatment times, i.e., 12, 36, and 48 h. All treatments induced aberrations involving wheat and rye chromosomes. Of the 920 cells observed in 67 M1 plants, 340 (37.0%) carried 817 aberrations with an average of 0.89 aberrations per cell (range: 0–12). The aberrations included probable deletions, telosomes and acentric fragments (49.0%), large segmental translocations (28.9%), small segmental translocations (17.1%), intercalary translocations (2.6%), long chromosomes that could carry more than one centromere (2.0%), and ring chromosomes (0.5%). Of 510 M2 plants analyzed, 110 (21.6%) were found to carry stable aberrations. Such aberrations included 79 with varied rye chromosome numbers, 7 with wheat and rye chromosome translocations, 15 with possible rye telosomes/deletions, and 9 with complex aberrations involving variation in rye chromosome number and wheat–rye translocations. These indicated that aberrations induced by zebularine can be steadily transmitted, suggesting that zebularine is a new efficient agent for chromosome manipulation.
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Affiliation(s)
- Xuhui Ma
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Qing Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanzhi Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Jieyun Ma
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Nan Wu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Shuang Ni
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Tengxiao Luo
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Lifang Zhuang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
| | - Chenggen Chu
- Monsanto Company, 21120 Hwy 30, Filer, ID 83328, USA
| | - Seong-Woo Cho
- Crop Breeding Research Division, National Institute of Crop Science, RDA, Wanju-gun, Jeollabuk-do, 55365, South Korea
| | - Hisashi Tsujimoto
- Arid Land Research Center, Tottori University, Hamasaka, Tottori 680-0001, Japan
| | - Zengjun Qi
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, JCIC-MCP, Nanjing Agricultural University, Nanjing 210095, China
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15
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Song L, Lu Y, Zhang J, Pan C, Yang X, Li X, Liu W, Li L. Physical mapping of Agropyron cristatum chromosome 6P using deletion lines in common wheat background. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2016; 129:1023-34. [PMID: 26920547 DOI: 10.1007/s00122-016-2680-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/23/2016] [Indexed: 05/21/2023]
Abstract
Genetically stable deletion lines of Agropyron cristatum chromosome 6P in common wheat background were generated, which allowed for physical mapping of 255 6P-specific STS markers and leaf rust resistance gene(s). Chromosomal deletion lines are valuable tools for gene discovery and localization. The chromosome 6P of Agropyron cristatum (2n = 4x = 28, PPPP) confers many desirable agronomic traits to common wheat, such as higher grain number per spike, multiple fertile tiller number, and enhanced resistance to certain diseases. Although many elite genes from A. cristatum have been identified, their chromosomal locations were largely undetermined due to the lack of A. cristatum 6P deletion lines. In this study, various A. cristatum 6P deletion lines were developed using a wheat-A. cristatum 6P disomic addition line 4844-12 subjected to (60)Co-γ irradiation as well as an Aegilops cylindrica gametocidal chromosome. Twenty-six genetically stable A. cristatum 6P deletion lines in the genetic background of common wheat were obtained, and their genetic constitutions were elucidated by genomic in situ hybridization (GISH) and sequence-tagged site (STS) markers specific to A. cristatum chromosome 6P. Moreover, 255 novel chromosome 6P-specific STS markers were physically mapped to 14 regions of chromosome 6P. Field evaluation of leaf rust resistance of various deletion lines and BC1F2 populations indicated that the A.cristatum chromosome 6P-originated leaf rust resistance gene(s) was located in the region 6PS-0.81-1.00. This study will provide not only useful tools for characterization and utilization of wheat materials with alien chromosomal segments, but also novel wheat germplasms potentially valuable in wheat breeding and improvement.
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Affiliation(s)
- Liqiang Song
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yuqing Lu
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jinpeng Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Cuili Pan
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xinming Yang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiuquan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Weihua Liu
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Lihui Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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16
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Li H, Fan R, Fu S, Wei B, Xu S, Feng J, Zheng Q, Wang X, Han F, Zhang X. Development of Triticum aestivum-Leymus mollis translocation lines and identification of resistance to stripe rust. J Genet Genomics 2014; 42:129-32. [PMID: 25819090 DOI: 10.1016/j.jgg.2014.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 11/22/2014] [Accepted: 11/28/2014] [Indexed: 11/19/2022]
Affiliation(s)
- Haoxun Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; National Center for Plant Gene Research, Chinese Academy of Sciences, Institute of Genetics and Developmental Biology, Beijing 100101, China
| | - Renchun Fan
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shulan Fu
- Key Laboratory of Plant Breeding Genetics, Sichuan Agriculture University, Chengdu 611130, China
| | - Bo Wei
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shichang Xu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jing Feng
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qi Zheng
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xianping Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Fangpu Han
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiangqi Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
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17
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Joshi GP, Endo TR, Nasuda S. PCR and sequence analysis of barley chromosome 2H subjected to the gametocidal action of chromosome 2C. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2013; 126:2381-2390. [PMID: 23765160 DOI: 10.1007/s00122-013-2142-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 06/03/2013] [Indexed: 05/28/2023]
Abstract
Gametocidal (Gc) chromosomes induce various types of chromosomal mutations during gametogenesis in the chromosomes of common wheat and alien chromosomes added to common wheat. However, it is not yet known whether the Gc chromosome causes aberrations at the nucleotide level because mutations caused by Gc chromosomes have been studied only by cytological screening. In order to know whether the Gc chromosome induces point mutations, we conducted PCR analysis and sequencing with the progeny of a common wheat line that is disomic for barley chromosome 2H and monosomic for Gc chromosome 2C. We analyzed 18 2H-specific EST sequences using 81 progeny plants carrying a cytologically normal-appearing 2H chromosome and found no nucleotide changes in the analyzed 1,419 sequences (in total 647,075 bp). During this analysis, we found six plants for which some ESTs could not be PCR amplified, suggesting the presence of chromosomal mutations in these plants. The cytological and PCR analyses of the progeny of the six plants confirmed the occurrence of chromosomal mutations in the parental plants. These results suggested that the Gc chromosome mostly induced chromosomal aberrations, not nucleotide changes, and that the Gc-induced chromosomal mutations in the six plants occurred after fertilization.
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Affiliation(s)
- Giri Prasad Joshi
- Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto, Japan
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18
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An D, Zheng Q, Zhou Y, Ma P, Lv Z, Li L, Li B, Luo Q, Xu H, Xu Y. Molecular cytogenetic characterization of a new wheat–rye 4R chromosome translocation line resistant to powdery mildew. Chromosome Res 2013; 21:419-32. [DOI: 10.1007/s10577-013-9366-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 05/29/2013] [Accepted: 06/06/2013] [Indexed: 12/26/2022]
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19
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Song L, Jiang L, Han H, Gao A, Yang X, Li L, Liu W. Efficient induction of Wheat-agropyron cristatum 6P translocation lines and GISH detection. PLoS One 2013; 8:e69501. [PMID: 23874966 PMCID: PMC3707604 DOI: 10.1371/journal.pone.0069501] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 06/09/2013] [Indexed: 01/02/2023] Open
Abstract
The narrow genetic background restricts wheat yield and quality improvement. The
wild relatives of wheat are the huge gene pools for wheat improvement and can
broaden its genetic basis. Production of wheat-alien translocation lines can
transfer alien genes to wheat. So it is important to develop an efficient method
to induce wheat-alien chromosome translocation. Agropyroncristatum (P genome)
carries many potential genes beneficial to disease resistance, stress tolerance
and high yield. Chromosome 6P possesses the desirable genes
exhibiting good agronomic traits, such as high grain number per spike, powdery
mildew resistance and stress tolerance. In this study, the wheat-A. cristatum disomic addition was
used as bridge material to produce wheat-A. cristatum translocation lines
induced by 60Co-γirradiation. The results of genomic in
situ hybridization showed that 216 plants contained alien
chromosome translocation among 571 self-pollinated progenies. The frequency of
translocation was 37.83%, much higher than previous reports. Moreover, various
alien translocation types were identified. The analysis of M2 showed
that 62.5% of intergeneric translocation lines grew normally without losing the
translocated chromosomes. The paper reported a high efficient technical method
for inducing alien translocation between wheat and Agropyroncristatum. Additionally, these
translocation lines will be valuable for not only basic research on genetic
balance, interaction and expression of different chromosome segments of wheat
and alien species, but also wheat breeding programs to utilize superior
agronomic traits and good compensation effect from alien chromosomes.
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Affiliation(s)
- Liqiang Song
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Lili Jiang
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Haiming Han
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Ainong Gao
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Xinming Yang
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Lihui Li
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
- * E-mail: (WL)
| | - Weihua Liu
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
- (LL)
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20
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Liu C, Qi L, Liu W, Zhao W, Wilson J, Friebe B, Gill BS. Development of a set of compensating Triticum aestivum-Dasypyrum villosum Robertsonian translocation lines. Genome 2011; 54:836-44. [PMID: 21961939 DOI: 10.1139/g11-051] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Dasypyrum villosum (L.) Candargy, a wild relative of bread wheat ( Triticum aestivum L.), is the source of many agronomically important genes for wheat improvement. Production of compensating Robertsonian translocations (cRobTs), consisting of D. villosum chromosome arms translocated to homoeologous wheat chromosome arms, is one of the initial steps in exploiting this variation. The cRobTs for D. villosum chromosomes 1V, 4V, and 6V have been reported previously. Here we report attempted cRobTs for wheat - D. villosum chromosome combinations 2D/2V, 3D/3V, 5D/5V, and 7D/7V. The cRobTs for all D. villosum chromosomes were recovered except for the 2VS and 5VL arms. As was the case with the 6D/6V combination, no cRobTs involving 2D/2V chromosomes were recovered; instead, cRobT T2BS·2VL involving a nontargeted chromosome was recovered. All cRobTs are fertile, although the level of spike fertility and hundred kernel weight (HKW) varied among the lines. The set of cRobTs involving 12 of the 14 D. villosum chromosomes will be useful in wheat improvement programs. In fact, among the already reported cRobTs, T6AL·6VS carrying the Pm21 gene is deployed in agriculture and many useful genes have been reported on other cRobTs including resistance to stem rust race UG99 on T6AS·6VL.
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Affiliation(s)
- Cheng Liu
- Department of Plant Pathology, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, 66506-5502, USA
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21
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Joshi GP, Nasuda S, Endo TR. Dissection and cytological mapping of barley chromosome 2H in the genetic background of common wheat. Genes Genet Syst 2011; 86:231-48. [DOI: 10.1266/ggs.86.231] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- Giri Prasad Joshi
- Laboratory of plant genetics, Graduate School of Agriculture, Kyoto University
| | - Shuhei Nasuda
- Laboratory of plant genetics, Graduate School of Agriculture, Kyoto University
| | - Takashi R. Endo
- Laboratory of plant genetics, Graduate School of Agriculture, Kyoto University
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22
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Liu WH, Luan Y, Wang JC, Wang XG, Su JJ, Zhang JP, Yang XM, Gao AN, Li LH. Production and identification of wheat - Agropyron cristatum (1.4P) alien translocation lines. Genome 2010; 53:472-81. [PMID: 20555436 DOI: 10.1139/g10-023] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The P genome of Agropyron Gaertn., a wild relative of wheat, contains an abundance of desirable genes that can be utilized as genetic resources to improve wheat. In this study, wheat - Aegilops cylindrica Host gametocidal chromosome 2C addition lines were crossed with wheat - Agropyron cristatum (L.) Gaertn. disomic addition line accession II-21 with alien recombinant chromosome (1.4)P. We successfully induced wheat - A. cristatum alien chromosomal translocations for the first time. The frequency of translocation in the progeny was 3.75%, which was detected by molecular markers and genomic in situ hybridization (GISH). The translocation chromosomes were identified by dual-color GISH /fluorescence in situ hybridization (FISH). The P genomic DNA was used as probe to detect the (1.4)P chromosome fragment, and pHvG39, pAs1, or pSc119.2 repeated sequences were used as probes to identify wheat translocated chromosomes. The results showed that six types of translocations were identified in the three wheat - A. cristatum alien translocation lines, including the whole arm or terminal portion of a (1.4)P chromosome. The (1.4)P chromosome fragments were translocated to wheat chromosomes 1B, 2B, 5B, and 3D. The breakpoints were located at the centromeres of 1B and 2B, the pericentric locations of 5BS, and the terminals of 5BL and 3DS. In addition, we obtained 12 addition-deletion lines that contained alien A. cristatum chromosome (1.4)P in wheat background. All of these wheat - A. cristatum alien translocation lines and addition-deletion lines would be valuable for identifying A. cristatum chromosome (1.4)P-related genes and providing genetic resources and new germplasm accessions for the genetic improvement of wheat. The specific molecular markers of A. cristatum (1.4)P chromosome have been developed and used to track the (1.4)P chromatin.
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Affiliation(s)
- Wei-Hua Liu
- National Key Facilities for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
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23
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Chester M, Leitch AR, Soltis PS, Soltis DE. Review of the Application of Modern Cytogenetic Methods (FISH/GISH) to the Study of Reticulation (Polyploidy/Hybridisation). Genes (Basel) 2010; 1. [PMID: 24710040 PMCID: PMC3954085 DOI: 10.3390/genes1010166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The convergence of distinct lineages upon interspecific hybridisation, including when accompanied by increases in ploidy (allopolyploidy), is a driving force in the origin of many plant species. In plant breeding too, both interspecific hybridisation and allopolyploidy are important because they facilitate introgression of alien DNA into breeding lines enabling the introduction of novel characters. Here we review how fluorescence in situ hybridisation (FISH) and genomic in situ hybridisation (GISH) have been applied to: 1) studies of interspecific hybridisation and polyploidy in nature, 2) analyses of phylogenetic relationships between species, 3) genetic mapping and 4) analysis of plant breeding materials. We also review how FISH is poised to take advantage of nextgeneration sequencing (NGS) technologies, helping the rapid characterisation of the repetitive fractions of a genome in natural populations and agricultural plants.
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Affiliation(s)
- Michael Chester
- Department of Biology, University of Florida, Gainesville, Florida 32611, USA.
| | - Andrew R Leitch
- School of Biological and Chemical Sciences, Queen Mary, University of London, UK.
| | - Pamela S Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611, USA.
| | - Douglas E Soltis
- Department of Biology, University of Florida, Gainesville, Florida 32611, USA.
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24
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Chester M, Leitch AR, Soltis PS, Soltis DE. Review of the Application of Modern Cytogenetic Methods (FISH/GISH) to the Study of Reticulation (Polyploidy/Hybridisation). Genes (Basel) 2010; 1:166-92. [PMID: 24710040 PMCID: PMC3954085 DOI: 10.3390/genes1020166] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 06/30/2010] [Accepted: 06/30/2010] [Indexed: 11/16/2022] Open
Abstract
The convergence of distinct lineages upon interspecific hybridisation, including when accompanied by increases in ploidy (allopolyploidy), is a driving force in the origin of many plant species. In plant breeding too, both interspecific hybridisation and allopolyploidy are important because they facilitate introgression of alien DNA into breeding lines enabling the introduction of novel characters. Here we review how fluorescence in situ hybridisation (FISH) and genomic in situ hybridisation (GISH) have been applied to: 1) studies of interspecific hybridisation and polyploidy in nature, 2) analyses of phylogenetic relationships between species, 3) genetic mapping and 4) analysis of plant breeding materials. We also review how FISH is poised to take advantage of nextgeneration sequencing (NGS) technologies, helping the rapid characterisation of the repetitive fractions of a genome in natural populations and agricultural plants.
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Affiliation(s)
- Michael Chester
- Department of Biology, University of Florida, Gainesville, Florida 32611, USA.
| | - Andrew R Leitch
- School of Biological and Chemical Sciences, Queen Mary, University of London, UK.
| | - Pamela S Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611, USA.
| | - Douglas E Soltis
- Department of Biology, University of Florida, Gainesville, Florida 32611, USA.
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25
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Luan Y, Wang X, Liu W, Li C, Zhang J, Gao A, Wang Y, Yang X, Li L. Production and identification of wheat-Agropyron cristatum 6P translocation lines. PLANTA 2010; 232:501-10. [PMID: 20490543 DOI: 10.1007/s00425-010-1187-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2010] [Accepted: 04/27/2010] [Indexed: 05/21/2023]
Abstract
The narrow genetic background of wheat is the primary factor that has restricted the improvement of crop yield in recent years. The kernel number per spike is the most important factor of the many potential characteristics that determine wheat yield. Agropyron cristatum (L.) Gaertn., a wild relative of wheat, has the characteristics of superior numbers of florets and kernels per spike, which are controlled by chromosome 6P. In this study, the wheat-A. cristatum disomic addition and substitution lines were used as bridge materials to produce wheat-A. cristatum 6P translocation lines induced by gametocidal chromosomes and irradiation. The results of genomic in situ hybridization showed that the frequency of translocation induced by gametocidal chromosomes was 5.08%, which was higher than the frequency of irradiated hybrids (2.78%) and irradiated pollen (2.12%). The fluorescence in situ hybridization results of the translocation lines showed that A. cristatum chromosome 6P could be translocated to wheat ABD genome, and the recombination frequency was A genome > B genome > D genome. The alien A. cristatum chromosome 6P was translocated to wheat homoeologous groups 1, 2, 3, 5 and 6. We obtained abundant translocation lines that possessed whole-arm, terminal, segmental and intercalary translocations. Three 6PS-specific and four 6PL-specific markers will be useful to rapidly identify and trace the translocated fragments. The different wheat-A. cristatum 6P translocation lines obtained in this study can provide basic materials for analyzing the alien genes carried by chromosome 6P. The translocation line WAT33-1-3 and introgression lines WAI37-2 and WAI41-1, which had significant characteristics of multikernel (high numbers of kernels per spike), could be utilized as novel germplasms for high-yield wheat breeding.
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Affiliation(s)
- Yang Luan
- National Key Facility for Crop Gene Resources and Genetic Improvement (NKCRI), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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26
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Gyawali YP, Nasuda S, Endo TR. Cytological dissection and molecular characterization of chromosome 1R derived from 'Burgas 2' common wheat. Genes Genet Syst 2009; 84:407-16. [DOI: 10.1266/ggs.84.407] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
| | - Shuhei Nasuda
- Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University
| | - Takashi R. Endo
- Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University
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27
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Kofler R, Bartos J, Gong L, Stift G, Suchánková P, Simková H, Berenyi M, Burg K, Dolezel J, Lelley T. Development of microsatellite markers specific for the short arm of rye (Secale cereale L.) chromosome 1. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2008; 117:915-26. [PMID: 18626624 DOI: 10.1007/s00122-008-0831-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2007] [Accepted: 06/11/2008] [Indexed: 05/18/2023]
Abstract
We developed 74 microsatellite marker primer pairs yielding 76 polymorphic loci, specific for the short arm of rye chromosome 1R (1RS) in wheat background. Four libraries enriched for microsatellite motifs AG, AAG, AC and AAC were constructed from DNA of flow-sorted 1RS chromosomes and 1,290 clones were sequenced. Additionally, 2,778 BAC-end-sequences from a 1RS specific BAC library were used for microsatellite screening and marker development. From 724 designed primer pairs, 119 produced 1RS specific bands and 74 of them showed polymorphism in a set of ten rye genotypes. We show that this high attrition rate was due to the highly repetitive nature of the rye genome consisting of a large number of transposable elements. We mapped the 76 polymorphic loci physically into three regions (bins) on 1RS; 29, 30 and 17 loci were assigned to the distal, intercalary and proximal regions of the 1RS arm, respectively. The average polymorphism information content increases with distance from the centromere, which could be due to an increased recombination rate along the chromosome arm toward's the telomere. Additionally, we demonstrate, using the data of the whole rice genome, that the intra-genomic length variation of microsatellites correlates (r = 0.87) with microsatellite polymorphism. Based on these results we suggest that an analysis of the microsatellite length variation is conducted for each species prior to microsatellite development, provided that sufficient sequence information is available. This will allow to selectively design microsatellite markers for motifs likely to yield a high level of polymorphism.
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Affiliation(s)
- Robert Kofler
- Department for Agrobiotechnology, Institute for Plant Production Biotechnology, University of Natural Resources and Applied Life Sciences, Konrad Lorenz Str. 20, 3430 Tulln, Austria.
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28
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Tsuchida M, Fukushima T, Nasuda S, Masoudi-Nejad A, Ishikawa G, Nakamura T, Endo TR. Dissection of rye chromosome 1R in common wheat. Genes Genet Syst 2008; 83:43-53. [PMID: 18379133 DOI: 10.1266/ggs.83.43] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Rye chromosome 1R contains many agronomically useful genes. Physical dissection of chromosome 1R into segments would be useful in mapping 1R-specific DNA markers and in assembling DNA clones into contig maps. We applied the gametocidal system to produce rearranged 1R chromosomes of Imperial rye (1R(i)) added to common wheat. We identified rearranged 1R(i) chromosomes and established 55 1R(i) dissection lines of common wheat carrying a single rearranged 1R(i) chromosome. Fifty-two of the rearranged 1R(i) chromosomes had single breakpoints and three had double breakpoints. The 58 breakpoints were distributed in the short arm excluding the satellite (12 breakpoints), in the satellite (4), in the long arm (28), and in the centromere (14). Out of the 55 lines, nine were homozygous for the rearranged 1R(i) chromosomes, and the remaining lines were hemizygous. We developed 26 PCR-based EST markers that were specific to the 1R(i) chromosome, and nine of them amplified 1R(i) arm-specific PCR products without restriction-enzyme digestion. Using the nine EST markers and two previously reported 1R-specific markers, we characterized the 55 1R(i) dissection lines, and also proved that we can select critical progeny plants carrying specific rearranged 1R(i) chromosomes by PCR, without cytological screening, in 48 out of the 55 hemizygous dissection lines.
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Affiliation(s)
- Masashi Tsuchida
- Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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29
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Tan GX. [Monosomic alien addition lines: a new tool for studying and using plant genomics]. YI CHUAN = HEREDITAS 2008; 30:35-45. [PMID: 18244900 DOI: 10.3724/sp.j.1005.2008.00035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Interspecies hybridization and backcrossing is a means to transfer desirable genes from one species to another in breeding programs of higher plants. Monosomic alien addition lines (MAALs) can be produced via addition of single chromosome of an alien donor species to the entire chromosome complement of the recipient species. MAALs are powerful tools for elucidating genome structure and transferring genes. Backcrossing of MAALs to the recipient parent results in plants containing short overlapping introgressions, which cover the entire donor genome. These introgression lines can be used as vectors of alien genomic libraries in a recipient genetic background. In addition, a complete set of MAALs also serves as a library of the donor genome dissected into individual chromosome entities, which facilitates high-throughput marker allocation to individual donor chromosomes, and marker assignments and syntenic relationships can be compared between the donor chromosomes and the respective orthologous recipient chromosomes. Meanwhile, MAALs can be used to study the introgression mechanism and the pairing status of homologous chromosomes. In this review, we presented the production and properties of MAALs and highlighted their advantages for genetic breeding and fundamental researches.
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Affiliation(s)
- Guang-Xuan Tan
- Department of Life Sciences, Zhoukou Normal University, Zhoukou, Henan Province 466001, China.
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30
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Abstract
Many alien chromosomes have been introduced into common wheat (the genus Triticum) from related wild species (the genus Aegilops). Some alien chromosomes have unique genes that secure their existence in the host by causing chromosome breakage in the gametes lacking them. Such chromosomes or genes, called gametocidal (Gc) chromosomes or Gc genes, are derived from different genomes (C, S, S(l) and M(g)) and belong to three different homoeologous groups 2, 3 and 4. The Gc genes of the C and M(g) genomes induce mild, or semi-lethal, chromosome mutations in euploid and alien addition lines of common wheat. Thus, induced chromosomal rearrangements have been identified and established in wheat stocks carrying deletions of wheat and alien (rye and barley) chromosomes or wheat-alien translocations. The gametocidal chromosomes isolated in wheat to date are reviewed here, focusing on their feature as a tool for chromosome manipulation.
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Affiliation(s)
- T R Endo
- Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
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31
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Endo TR. The gametocidal chromosome as a tool for chromosome manipulation in wheat. CHROMOSOME RESEARCH : AN INTERNATIONAL JOURNAL ON THE MOLECULAR, SUPRAMOLECULAR AND EVOLUTIONARY ASPECTS OF CHROMOSOME BIOLOGY 2007. [PMID: 17295127 DOI: 10.1007/s10577‐006‐1100‐3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Many alien chromosomes have been introduced into common wheat (the genus Triticum) from related wild species (the genus Aegilops). Some alien chromosomes have unique genes that secure their existence in the host by causing chromosome breakage in the gametes lacking them. Such chromosomes or genes, called gametocidal (Gc) chromosomes or Gc genes, are derived from different genomes (C, S, S(l) and M(g)) and belong to three different homoeologous groups 2, 3 and 4. The Gc genes of the C and M(g) genomes induce mild, or semi-lethal, chromosome mutations in euploid and alien addition lines of common wheat. Thus, induced chromosomal rearrangements have been identified and established in wheat stocks carrying deletions of wheat and alien (rye and barley) chromosomes or wheat-alien translocations. The gametocidal chromosomes isolated in wheat to date are reviewed here, focusing on their feature as a tool for chromosome manipulation.
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Affiliation(s)
- T R Endo
- Laboratory of Plant Genetics, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
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32
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Silkova OG, Dobrovolskaya OB, Dubovets NI, Adonina IG, Kravtsova LA, Roeder MS, Salina EA, Shchapova AI, Shumny VK. Production of wheat-rye substitution lines and identification of chromosome composition of karyotypes using C-banding, GISH, and SSR markers. RUSS J GENET+ 2006. [DOI: 10.1134/s1022795406060093] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Chang SB, de Jong H. Production of alien chromosome additions and their utility in plant genetics. Cytogenet Genome Res 2005; 109:335-43. [PMID: 15753594 DOI: 10.1159/000082417] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2003] [Accepted: 02/25/2004] [Indexed: 11/19/2022] Open
Abstract
Breeding programs aiming at transferring desirable genes from one species to another through interspecific hybridization and backcrossings often produce monosomic and disomic additions as intermediate crossing products. Such aneuploids contain alien chromosomes added to the complements of the recipient parent and can be used for further introgression programs, but lack of homoeologous recombination and inevitable segregation of the alien chromosome at meiosis make them often less ideal for producing stable introgression lines. Monosomic and disomic additions can have specific morphological characteristics, but more often they need additional confirmation of molecular marker analyses and assessment by fluorescence in situ hybridization with genomic and chromosome-specific DNA as probes. Their specific genetic and cytogenetic properties make them powerful tools for fundamental research elucidating regulation of homoeologous recombination, distribution of chromosome-specific markers and repetitive DNA sequences, and regulation of heterologous gene expression. In this overview we present the major characteristics of such interspecific aneuploids highlighting their advantages and drawbacks for breeding and fundamental research.
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Affiliation(s)
- S-B Chang
- Laboratory of Genetics, Wageningen University, Wageningen, The Netherlands
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34
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Qi L, Friebe B, Gill BS. Origin, structure, and behavior of a highly rearranged deletion chromosome 1BS-4 in wheat. Genome 2005; 48:591-7. [PMID: 16094425 DOI: 10.1139/g05-020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Wheat (Triticum aestivum L.) deletion (del) stocks are valuable tools for the physical mapping of molecular markers and genes to chromosome bins delineated by 2 adjacent deletion breakpoints. The wheat deletion stocks were produced by using gametocidal genes derived from related Aegilops species. Here, we report on the origin, structure, and behavior of a highly rearranged chromosome 1BS-4. The cytogenetic and molecular marker analyses suggest that 1BS-4 resulted from 2 breakpoints in the 1BS arm and 1 breakpoint in the 1BL arm. The distal segment from 1BS, except for a small deleted part, is translocated to the long arm. Cytologically, chromosome 1BS-4 is highly stable, but shows a unique meiotic pairing behavior. The short arm of 1BS-4 fails to pair with a normal 1BS arm because of lack of homology at the distal ends. The long arm of 1BS-4 only pairs with a normal 1BS arm within the distal region translocated from 1BS. Therefore, using the 1BS-4 deletion stock for physical mapping will result in the false allocation of molecular markers and genes proximal to the breakpoint of 1BS-4.Key words: Triticum aestivum, wheat, deletion–translocation, physical mapping.
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Affiliation(s)
- Lili Qi
- Wheat Genetics Resource Center, Department of Plant Pathology, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, 66506, USA
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35
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Taketa S, Awayama T, Ichii M, Sunakawa M, Kawahara T, Murai K. Molecular cytogenetic identification of nullisomy 5B induced homoeologous recombination between wheat chromosome 5D and barley chromosome 5H. Genome 2005; 48:115-24. [PMID: 15729403 DOI: 10.1139/g04-096] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chromosome 5H of Hordeum vulgare 'New Golden' (NG) carries a gene(s) that accelerates heading in a wheat background. To introduce the early heading gene(s) of NG barley into the wheat genome, we attempted to induce homoeologous recombination between wheat and NG 5H chromosomes by 5B nullisomy. A nullisomic 5B, trisomic 5A, monosomic 5H plant (2n = 42) was produced from systematic crosses between aneuploid stocks of wheat group 5 chromosomes. A total of 656 F2 plants produced by self-fertilization were screened for recombinants by a PCR assay with 3 5H-specific amplicon markers. Twelve plants (1.8%) were selected as putative wheat-barley 5H recombinants. Five of them were inviable or sterile and the remaining 7 were fertile and subjected to the progeny test. Cytological analyses using fluorescence in situ hybridization and C-banding revealed that 6 of the 7 progeny lines are true homoeologous recombinants between the long arms of chromosomes 5D and 5H, but that the other one was not a recombinant having an aberrant barley telosome. The 6 cytologically confirmed recombinant lines included only 2 types (3 lines each), which were reciprocal products derived from exchanges at the same distal interval defined by two flanking markers. One type had a small 5HL segment translocated to the 5DL terminal, and the other type had a small terminal 5DL segment translocated to the 5HL terminal. In the latter type, the physical length of translocated barley segments slightly differed among lines. Homoeologous recombinants obtained in this study should be useful for further chromosome manipulation to introgress a small interstitial 5HL chromosome segment with the early heading gene(s) to wheat. Preferential occurrence of restricted types of recombinants is discussed in relation to homoeologous relationships between wheat and barley chromosomes.
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Affiliation(s)
- Shin Taketa
- Kagawa University, Kiki-cho, Kita-gun, Japan.
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36
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Nagy ED, Lelley T. Genetic and physical mapping of sequence-specific amplified polymorphic (SSAP) markers on the 1RS chromosome arm of rye in a wheat background. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2003; 107:1271-1277. [PMID: 12898027 DOI: 10.1007/s00122-003-1367-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2002] [Accepted: 04/16/2003] [Indexed: 05/24/2023]
Abstract
Three rye-specific repeated sequences, pSc10C, pSc20H and R173-1, were used to design sequence-specific anchored primers. These primers and 16 restriction site-specific adaptor primers were used in all possible combinations to establish sequence-specific amplified polymorphic (SSAP) markers for the 1RS chromosome arm of rye in a wheat background. Thirty 1RS-specific SSAP markers were detected in 19 primer combinations. Along with six markers localised previously on 1RS, 26 of the SSAP markers were mapped genetically in wheat genotypes carrying recombinant 1BL.1RS translocations. A clear decrease in recombination frequency from distal to proximal regions was observed. Wheat-rye addition lines for the 1R chromosome with different-sized deletions of the short arm were used to physically localise these markers. Physical mapping suggested an even distribution of the SSAP markers along the total length of the 1RS chromosome arm.
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Affiliation(s)
- E D Nagy
- Agricultural Research Institute of the Hungarian Academy of Sciences, Martonvásár, 2462, Brunszvik 2, Hungary
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37
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Friebe B, Zhang P, Nasuda S, Gill BS. Characterization of a knock-out mutation at the Gc2 locus in wheat. Chromosoma 2003; 111:509-17. [PMID: 12684822 DOI: 10.1007/s00412-003-0234-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2002] [Revised: 11/05/2002] [Accepted: 11/13/2002] [Indexed: 11/30/2022]
Abstract
Gametocidal (Gc) genes, introduced into common wheat from related Aegilops species, are selfish genetic elements that ensure their preferential transmission by inducing chromosomal breaks. Here we report the production and characterization of a knock-out mutation of the Gc2 gene transferred to wheat as a wheat-Aegilops sharonensis T4B-4S(sh)#1 translocation chromosome. In hemizygous Gc2/- condition, gametophytes lacking Gc2 suffer chromosomal fragmentation and produce non-functional gametes, which leads to sporophytic semisterility and exclusive transmission of the Gc2-carrier chromosome. We have identified one putative ethyl methylsulfonate (EMS)-induced Gc2 mutant that restores spike fertility and shows Mendelian segregation. Progeny screening mapped the mutation to the Gc2-carrier chromosome T4B-4S(sh)#1. C-banding and fluorescence in situ hybridization analyses showed that the loss of Gc2 function in the mutant is not due to a terminal deficiency. Analysis of first and second pollen mitoses in Gc2(mut) /- plants and C-banding analysis of testcross progenies showed that no chromosomal breakage occurs in the mutant. No gametophytic chromosomal breakage was observed in heterozygous Gc2(mut) /Gc2 plants, which had fully fertile spikes. These results suggest that Gc2 encodes two agents, one causing chromosomal breaks in gametophytes lacking Gc2 and another that protects the Gc2 carrier from breakage. The EMS-induced Gc2 mutant appears to be a knock-out of the gene encoding the "breaking" agent. These data are a first crucial step toward the molecular understanding of Gc2 action.
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Affiliation(s)
- Bernd Friebe
- Wheat Genetics Resource Center and Department of Plant Pathology, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS 66506-5502, USA.
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