1
|
Geng X, Wang X, Wang J, Yang X, Zhang L, Song X. TaEXPB5 functions as a gene related to pollen development in thermo-sensitive male-sterility wheat with Aegilops kotschyi cytoplasm. Plant Sci 2022; 323:111377. [PMID: 35820549 DOI: 10.1016/j.plantsci.2022.111377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
The thermo-sensitive cytoplasmic male-sterility line with Aegilops kotschyi cytoplasm (K-TCMS) is completely male sterile under low temperature (< 18 ℃) during Zadoks growth stages 45-52, whereas its fertility can be restored under hot temperature (≥ 20 ℃). The K-TCMS line may facilitate hybrid breeding and hybrid wheat production. Therefore, to elucidate the molecular mechanisms of its male sterility/fertility conversion, we conducted the association analysis of proteins and transcript expression to screen fertility related genes using RNA-seq, iTRAQ, and PRM-based assay. A gene encoding expansin protein in wheat, TaEXPB5, was isolated in K-TCMS line KTM3315A, which upregulated expression in the fertility anthers. Subcellular localization analysis suggested that TaEXPB5 protein localized to nucleus and cell wall. The silencing of TaEXPB5 displayed pollen abortion and the declination of fertility. Further, cytological investigation indicated that the silencing of TaEXPB5 induced the early degradation of tapetum and abnormal development of pollen wall. These results implied that TaEXPB5 may be essential for anther or pollen development and male fertility of KTM3315A. These findings provide a novel insight into molecular mechanism of fertility conversion for thermo-sensitive cytoplasmic male-sterility wheat, and contribute to the molecular breeding of hybrid wheat in the future.
Collapse
Affiliation(s)
- Xingxia Geng
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xiaoxia Wang
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Jingchen Wang
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xuetong Yang
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Lingli Zhang
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xiyue Song
- College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| |
Collapse
|
2
|
Sun R, Gong J, Liu Y, Chen Z, Zhang F, Gao J, Cao J, Chen X, Zhang S, Zhao C, Gao S. Comprehensive molecular evaluation of the histone methyltransferase gene family and their important roles in two-line hybrid wheat. BMC Plant Biol 2022; 22:290. [PMID: 35698040 PMCID: PMC9190116 DOI: 10.1186/s12870-022-03639-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Histone methylation usually plays important roles in plant development through post-translational regulation and may provide a new visual field for heterosis. The histone methyltransferase gene family has been identified in various plants, but its members and functions in hybrid wheat related in heterosis is poorly studied. RESULTS In this study, 175 histone methyltransferase (HMT) genes were identified in wheat, including 152 histone lysine methyltransferase (HKMT) genes and 23 protein arginine methyltransferase (PRMT) genes. Gene structure analysis, physicochemical properties and subcellular localization predictions of the proteins, exhibited the adequate complexity of this gene family. As an allohexaploid species, the number of the genes (seven HKMTs orthologous groups and four PRMTs orthologous groups) in wheat were about three times than those in diploids and showed certain degrees of conservation, while only a small number of subfamilies such as ASH-like and Su-(var) subfamilies have expanded their members. Transcriptome analysis showed that HMT genes were mainly expressed in the reproductive organs. Expression analysis showed that some TaHMT genes with different trends in various hybrid combinations may be regulated by lncRNAs with similar expression trends. Pearson correlation analysis of the expression of TaHMT genes and two yield traits indicated that four DEGs may participate in the yield heterosis of two-line hybrid wheat. ChIP-qPCR results showed that the histone modifications (H3K4me3, H3K36me3 and H3K9ac) enriched in promoter regions of three TaCCA1 genes which are homologous to Arabidopsis heterosis-related CCA1/LHY genes. The higher expression levels of TaCCA1 in F1 than its parents are positive with these histone modifications. These results showed that histone modifications may play important roles in wheat heterosis. CONCLUSIONS Our study identified characteristics of the histone methyltransferase gene family and enhances the understanding of the evolution and function of these members in allohexaploid wheat. The causes of heterosis of two-line hybrid wheat were partially explained from the perspective of histone modifications.
Collapse
Affiliation(s)
- Renwei Sun
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing, 100097, China
| | - Jie Gong
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing, 100097, China
| | - Yongjie Liu
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing, 100097, China
| | - Zhaobo Chen
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
| | - Fengting Zhang
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
| | - Jiangang Gao
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
| | - Junmei Cao
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Xianchao Chen
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China
| | - Shengquan Zhang
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China.
| | - Changping Zhao
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China.
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing, 100097, China.
| | - Shiqing Gao
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, 100097, China.
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing, 100097, China.
| |
Collapse
|
3
|
Yang X, Ye J, Niu F, Feng Y, Song X. Identification and verification of genes related to pollen development and male sterility induced by high temperature in the thermo-sensitive genic male sterile wheat line. Planta 2021; 253:83. [PMID: 33770279 DOI: 10.1007/s00425-021-03601-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Bioinformatic analysis identified the function of genes regulating wheat fertility. Barley stripe mosaic virus-induced gene silencing verified that the genes TaMut11 and TaSF3 are involved in pollen development and related to fertility conversion. Environment-sensitive genic male sterility is of vital importance to hybrid vigor in crop production and breeding. Therefore, it is meaningful to study the function of the genes related to pollen development and male sterility, which is still not fully understand currently. In this study, YanZhan 4110S, a new thermo-sensitive genic male sterility wheat line, and its near-isogenic line YanZhan 4110 were analyzed. Through comparative transcriptome basic bioinformatics and weighted gene co-expression network to further identify some hub genes, the genes TaMut11 and TaSF3 associated with pollen development and male sterility induced by high-temperature were identified in YanZhan 4110S. Further verification through barley stripe mosaic virus-induced gene silencing elucidated that the silencing of TaMut11 and TaSF3 caused pollen abortion, finally resulting in the declination of fertility. These findings provided data on the abortive mechanism in environment-sensitive genic male sterility wheat.
Collapse
Affiliation(s)
- Xuetong Yang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jiali Ye
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fuqiang Niu
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yi Feng
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Xiyue Song
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| |
Collapse
|
4
|
Li H, Li S, Abdelkhalik S, Shahzad A, Gu J, Yang Z, Ding M, Liu K, Zhao H, Yang M. Development of thermo-photo sensitive genic male sterile lines in wheat using doubled haploid breeding. BMC Plant Biol 2020; 20:246. [PMID: 32487057 PMCID: PMC7268658 DOI: 10.1186/s12870-020-02458-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Two-line hybrid wheat system using thermo-photo sensitive genic male sterility (TPSGMS) is currently the most promising approach for wheat heterosis utilization in China. However, during past 20 years only few TPSGMS lines were developed in hybrid wheat breeding, which has been the main limiting factor to create heterotic hybrids. Application of doubled haploid (DH) breeding provides a useful strategy to efficiently develop practically usable TPSGMS lines. RESULTS F1s and selected F2 and F3 sterile plants of eight crosses made from two commercial TPSGMS lines were used to produce DH lines. We developed a total of 24 elite DH sterile lines with stable sterility, good outcrossing and yield potential, resistance to yellow rust and powdery mildew, as well as desirable plant height (50-60 cm). These DH lines were developed within 4 years through at least 1 year of evaluation. The stability of male sterility was confirmed for most (20/24) of these elite DH sterile lines by multiple tests in two or 3 years. These lines are expected to be used in hybrid wheat breeding. The percentage of elite lines developed from the tested DH lines produced from filial generations was in the order of F2 > F3 > F1. CONCLUSIONS We demonstrate that coupling DH techniques with conventional breeding is an efficient strategy for accelerating the development of more practical wheat TPSGMS lines. Generation of DHs from F2 generation appeared to be the better choice considering the balance of shortening breeding time and overall breeding efficiency.
Collapse
Affiliation(s)
- Hongsheng Li
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Shaoxiang Li
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Sedhom Abdelkhalik
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
- Filed Crops Research Institute, Agricultural Research Center, Kafr El-Shaikh, 33717, Egypt
| | - Armaghan Shahzad
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
- National Institute for Genomics and Advanced Biotechnology, National Agricultural Research Centre, Islamabad, 45500, Pakistan
| | - Jian Gu
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Zhonghui Yang
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Mingliang Ding
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Kun Liu
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Hong Zhao
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China
| | - Mujun Yang
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences / Yunnan Branch of National Wheat Improvement Center, Kunming, Yunnan, 650205, P. R. China.
| |
Collapse
|
5
|
Liu Q, Liu Z, Li W, Song X. Comparative transcriptome analysis indicates conversion of stamens into pistil-like structures in male sterile wheat (Triticum aestivum L.) with Aegilops crassa cytoplasm. BMC Genomics 2020; 21:124. [PMID: 32019527 PMCID: PMC7001380 DOI: 10.1186/s12864-020-6450-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 01/03/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Aegilops crassa cytoplasm is an important source for investigating cytoplasmic male sterility (CMS). Moreover, the stamens of line C303A exhibit a high degree of pistillody, turning almost white. However, the molecular mechanism that underlies pistillody in C303A remains unclear. Therefore, to obtain a better understanding of pistillody in C303A, the phenotypic and cytological features of C303A were observed to identify the key stage for the homeotic transformation of stamens into pistil-like structures. Transcriptome profiles were determined for stamens using Illumina RNA sequencing. RESULTS Morphological observations of the CMS wheat line with Aegilops crassa cytoplasm C303A showed that the pistils developed normally, but the stamens were ultimately aborted and they released no pollen when mature. According to paraffin section observations, the stamens began to transform into pistils or pistil-like structures in the binucleate stage (BNS). Therefore, the stamens were collected from line C303A and its maintainer 303B in the BNS for transcriptome sequencing. In total, 20,444 wheat genes were determined as differentially expressed in C303A and 303B stamens, with 10,283 upregulated and 10,161 downregulated genes. Gene Ontology enrichment analyses showed that most of the differentially expressed genes (DEGs) were annotated with GO terms comprising metabolic process, cell, cellular process, catalytic activity, and cell part. Analysis based on the Kyoto Encyclopedia of Genes and Genomes database showed that the enriched DEGs were mainly associated with energy metabolism. We also found several essential genes that may contribute to pistillody in C303A. These findings suggest that disrupted energy metabolism and reactive oxygen metabolism induce pistillody and eventually lead to abortion in C303A. CONCLUSION We determined the complex transcriptome profiles for C303A stamens and demonstrated that disrupted energy metabolism and class B MADS-box genes are related to pistillody. These findings may facilitate future studies of the mechanistic response of the wheat stamen and pollen development in CMS.
Collapse
Affiliation(s)
- Qi Liu
- College of Agronomy, Northwest A & F University, Yangling, 712100, China
| | - Zihan Liu
- College of Agronomy, Northwest A & F University, Yangling, 712100, China
| | - Wei Li
- College of Agronomy, Northwest A & F University, Yangling, 712100, China
| | - Xiyue Song
- College of Agronomy, Northwest A & F University, Yangling, 712100, China.
| |
Collapse
|
6
|
Yang X, Ye J, Zhang L, Song X. Blocked synthesis of sporopollenin and jasmonic acid leads to pollen wall defects and anther indehiscence in genic male sterile wheat line 4110S at high temperatures. Funct Integr Genomics 2020; 20:383-96. [PMID: 31729646 DOI: 10.1007/s10142-019-00722-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 12/13/2022]
Abstract
Environment-sensitive genic male sterility is a valid tool for hybrid production and hybrid breeding, but there are no previous reports of the molecular mechanism of fertility conversion. In this study, RNA-seq, phenotypic and cytological observations, and physiological indexes were applied to analyze thermo-sensitive genic male sterility line 4110S under different temperature conditions to explore the fertility transformation mechanism. In total, 3420 differentially expressed genes (DEGs) were identified comprising 2331 upregulated genes and 1089 downregulated genes. The DEGs were apparently distributed among 54 Gene Ontology functional groups. The phenylpropanoid, long-chain fatty acid, and jasmonic acid (JA) biosynthesis pathways were related to male sterility, where their downregulation blocked the synthesis of sporopollenin and JA. Phenotypic and cytological analyses showed that pollen wall defects and anther indehiscence at high temperatures induced sterility. Moreover, enzyme-linked immunosorbent assay results indicated that the abundance of JA was lower in 4110S under restrictive conditions (high temperature) than permissive conditions (low temperature). A possible regulated network of pathways associated with male sterility was suggested. These results provided insights into the molecular mechanism of fertility conversion in the thermosensitive male sterility system.
Collapse
|
7
|
Gils M. A Recessive Pollination Control System for Wheat Based on Intein-Mediated Protein Splicing. Methods Mol Biol 2017; 1495:173-95. [PMID: 27714617 DOI: 10.1007/978-1-4939-6451-2_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
A transgene-expression system for wheat that relies on the complementation of inactive precursor protein fragments through a split-intein system is described. The N- and C-terminal fragments of a barnase gene from Bacillus amyloliquifaciens were fused to intein sequences from Synechocystis sp. and transformed into wheat plants. Upon translation, both barnase fragments are assembled by an autocatalytic intein-mediated trans-splicing reaction, thus forming a cytotoxic enzyme. This chapter focuses on the use of introns and flexible polypeptide linkers to foster the expression of a split-barnase expression system in plants. The methods and protocols that were employed with the objective to test the effects of such genetic elements on transgene expression and to find the optimal design of expression vectors for use in wheat are provided. Split-inteins can be used to form an agriculturally important trait (male sterility) in wheat plants. The use of this principle for the production of hybrid wheat seed is described. The suggested toolbox will hopefully be a valuable contribution to future optimization strategies in this commercially important crop.
Collapse
|
8
|
Xu L, Tang Y, Gao S, Su S, Hong L, Wang W, Fang Z, Li X, Ma J, Quan W, Sun H, Li X, Wang Y, Liao X, Gao J, Zhang F, Li L, Zhao C. Comprehensive analyses of the annexin gene family in wheat. BMC Genomics 2016; 17:415. [PMID: 27236332 PMCID: PMC4884362 DOI: 10.1186/s12864-016-2750-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 05/17/2016] [Indexed: 11/16/2022] Open
Abstract
Background Annexins are an evolutionarily conserved multigene family of calcium-dependent phospholipid binding proteins that play important roles in stress resistance and plant development. They have been relatively well characterized in model plants Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa), but nothing has been reported in hexaploid bread wheat (Triticum aestivum) and barely (Hordeum vulgare), which are the two most economically important plants. Results Based on available genomic and transcriptomic data, 25 and 11 putative annexin genes were found through in silico analysis in wheat and barley, respectively. Additionally, eight and 11 annexin genes were identified from the draft genome sequences of Triticum urartu and Aegilops tauschii, progenitor for the A and D genome of wheat, respectively. By phylogenetic analysis, annexins in these four species together with other monocots and eudicots were classified into six different orthologous groups. Pi values of each of Ann1–12 genes among T. aestivum, T. urartu, A. tauschii and H. vulgare species was very low, with the exception of Ann2 and Ann5 genes. Ann2 gene has been under positive selection, but Ann6 and Ann7 have been under purifying selection among the four species in their evolutionary histories. The nucleotide diversities of Ann1–12 genes in the four species were 0.52065, 0.59239, 0.60691 and 0.53421, respectively. No selective pressure was operated on annexin genes in the same species. Gene expression patterns obtained by real-time PCR and re-analyzing the public microarray data revealed differential temporal and spatial regulation of annexin genes in wheat under different abiotic stress conditions such as salinity, drought, cold and abscisic acid. Among those genes, TaAnn10 is specifically expressed in the anther but fails to be induced by low temperature in thermosensitive genic male sterile lines, suggesting that specific down-regulation of TaAnn10 is associated with conditional male sterility in wheat. Conclusions This study analyzed the size and composition of the annexin gene family in wheat and barley, and investigated differential tissue-specific and stress responsive expression profiles of the gene family in wheat. These results provided significant information for understanding the diverse roles of plant annexins and opened a new avenue for functional studies of cold induced male sterility in wheat. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-2750-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Lei Xu
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.,College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Yimiao Tang
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
| | - Shiqing Gao
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Shichao Su
- College of Life Science, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China
| | - Lin Hong
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Weiwei Wang
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Zhaofeng Fang
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Xueyin Li
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Jinxiu Ma
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Wei Quan
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Hui Sun
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Xia Li
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agricultural Sciences and School of Life Sciences, Peking University, Beijing, 100871, China
| | - Yongbo Wang
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Xiangzheng Liao
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Jiangang Gao
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Fengting Zhang
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Lei Li
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agricultural Sciences and School of Life Sciences, Peking University, Beijing, 100871, China.
| | - Changping Zhao
- Beijing Engineering Research Center for Hybrid Wheat, The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
| |
Collapse
|
9
|
Ba Q, Zhang G, Niu N, Ma S, Wang J. Cytoplasmic effects on DNA methylation between male sterile lines and the maintainer in wheat (Triticum aestivum L.). Gene 2014; 549:192-7. [PMID: 24875418 DOI: 10.1016/j.gene.2014.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 11/24/2013] [Accepted: 01/04/2014] [Indexed: 02/03/2023]
Abstract
Male sterile cytoplasm plays an important role in hybrid wheat, and three-line system including male sterile (A line), its maintainer (B line) and restoring (R line) has played a major role in wheat hybrid production. It is well known that DNA methylation plays an important role in gene expression regulation during biological development in wheat. However, no reports are available on DNA methylation affected by different male sterile cytoplasms in hybrid wheat. We employed a methylation-sensitive amplified polymorphism technique to characterize nuclear DNA methylation in three male sterile cytoplasms. A and B lines share the same nucleus, but have different cytoplasms which is male sterile for the A and fertile for the B. The results revealed a relationship of DNA methylation at these sites specifically with male sterile cytoplasms, as well as male sterility, since the only difference between the A lines and B line was the cytoplasm. The DNA methylation was markedly affected by male sterile cytoplasms. K-type cytoplasm affected the methylation to a much greater degree than T-type and S-type cytoplasms, as indicated by the ratio of methylated sites, ratio of fully methylated sites, and polymorphism between A lines and B line for these cytoplasms. The genetic distance between the cytoplasm and nucleus for the K-type is much greater than for the T- and S-types because the former is between Aegilops genus and Triticum genus and the latter is within Triticum genus between Triticum spelta and Triticum timopheevii species. Thus, this difference in genetic distance may be responsible for the variation in methylation that we observed.
Collapse
Affiliation(s)
- Qingsong Ba
- Northwest A&F University, National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, Wheat Breeding Engineering Research Center, Ministry of Education, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling 712100, Shaanxi, PR China
| | - Gaisheng Zhang
- Northwest A&F University, National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, Wheat Breeding Engineering Research Center, Ministry of Education, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling 712100, Shaanxi, PR China.
| | - Na Niu
- Northwest A&F University, National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, Wheat Breeding Engineering Research Center, Ministry of Education, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling 712100, Shaanxi, PR China
| | - Shoucai Ma
- Northwest A&F University, National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, Wheat Breeding Engineering Research Center, Ministry of Education, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling 712100, Shaanxi, PR China
| | - Junwei Wang
- Northwest A&F University, National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, Wheat Breeding Engineering Research Center, Ministry of Education, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling 712100, Shaanxi, PR China
| |
Collapse
|