1
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Affiliation(s)
- K. Bachmann
- Hugo de Vries Laboratory; University of Amsterdam; Kruislaan 318 NL-1098 SM Amsterdam The Netherlands
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2
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VAHALA TIINA, ERIKSSON TAGE, ENGSTRÖM PETER. Genetic variability in basket willow (Salix viminalis) detected by hybridization to a bacteriophage M13 DNA probe. Hereditas 2014. [DOI: 10.1111/j.1601-5223.1991.tb03550.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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3
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van Houten WHJ, van Heusden AW, Voort JRVD, Raijmann L, Bachmann K. Hypervariable DNA Fingerprint Loci inMicroseris pygmaea(Asteraceae, Lactuceae). ACTA ACUST UNITED AC 2014. [DOI: 10.1111/j.1438-8677.1991.tb00226.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Winter P, Kahl G. Molecular marker technologies for plant improvement. World J Microbiol Biotechnol 2014; 11:438-48. [PMID: 24414752 DOI: 10.1007/bf00364619] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The exploitation of DNA polymorphisms by an ever-increasing number of molecular marker technologies has begun to have an impact on plant genome research and breeding. Restriction fragment length polymorphisms, micro- and mini-satellites and PCR-based approaches are used to determine inter- and intra-specific genetic diversity and construct molecular maps of crops using specially designed mapping populations. Resistance genes and other agronomically important loci are tagged with tightly linked DNA markers and the genes isolated by magabase DNA technology and cloning into yeast artificial chromosomes (YAC). This review discusses some recent developments and results in this field.
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Nybom H, Weising K, Rotter B. DNA fingerprinting in botany: past, present, future. INVESTIGATIVE GENETICS 2014; 5:1. [PMID: 24386986 PMCID: PMC3880010 DOI: 10.1186/2041-2223-5-1] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/02/2013] [Indexed: 12/20/2022]
Abstract
Almost three decades ago Alec Jeffreys published his seminal Nature papers on the use of minisatellite probes for DNA fingerprinting of humans (Jeffreys and colleagues Nature 1985, 314:67-73 and Nature 1985, 316:76-79). The new technology was soon adopted for many other organisms including plants, and when Hilde Nybom, Kurt Weising and Alec Jeffreys first met at the very First International Conference on DNA Fingerprinting in Berne, Switzerland, in 1990, everybody was enthusiastic about the novel method that allowed us for the first time to discriminate between humans, animals, plants and fungi on the individual level using DNA markers. A newsletter coined "Fingerprint News" was launched, T-shirts were sold, and the proceedings of the Berne conference filled a first book on "DNA fingerprinting: approaches and applications". Four more conferences were about to follow, one on each continent, and Alec Jeffreys of course was invited to all of them. Since these early days, methodologies have undergone a rapid evolution and diversification. A multitude of techniques have been developed, optimized, and eventually abandoned when novel and more efficient and/or more reliable methods appeared. Despite some overlap between the lifetimes of the different technologies, three phases can be defined that coincide with major technological advances. Whereas the first phase of DNA fingerprinting ("the past") was dominated by restriction fragment analysis in conjunction with Southern blot hybridization, the advent of the PCR in the late 1980s gave way to the development of PCR-based single- or multi-locus profiling techniques in the second phase. Given that many routine applications of plant DNA fingerprinting still rely on PCR-based markers, we here refer to these methods as "DNA fingerprinting in the present", and include numerous examples in the present review. The beginning of the third phase actually dates back to 2005, when several novel, highly parallel DNA sequencing strategies were developed that increased the throughput over current Sanger sequencing technology 1000-fold and more. High-speed DNA sequencing was soon also exploited for DNA fingerprinting in plants, either in terms of facilitated marker development, or directly in the sense of "genotyping-by-sequencing". Whereas these novel approaches are applied at an ever increasing rate also in non-model species, they are still far from routine, and we therefore treat them here as "DNA fingerprinting in the future".
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Affiliation(s)
- Hilde Nybom
- Department of Plant Breeding–Balsgård, Swedish University for Agricultural Sciences, Fjälkestadsvägen 459, Kristianstad 29194, Sweden
| | - Kurt Weising
- Plant Molecular Systematics, Institute of Biology, University of Kassel, Kassel 34109, Germany
| | - Björn Rotter
- GenXPro GmbH, Altenhöferallee 3, Frankfurt 60438, Germany
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6
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Abstract
SynopsisThe usefulness of restriction fragment length polymorphisms (RFLPs) in plant breeding and genetics is discussed, with particular emphasis on tagging genes, map-based cloning, the assessment of genetic variability and distances, and comparative genome mapping.The Department of Plant Breeding and Biometry has currently established tight linkages between RFLPs and more than 20 genes of economic importance. Approximately half of these genes confer resistance to major pathogens including nematodes, bacteria, fungi, and viruses. Other genes tagged are involved in various aspects of crop quality.Locating genes with respect to DNA markers on an RFLP map provides a starting point for cloning the genes by chromosome walking. This strategy is currently being pursued for three disease-resistance genes that have been placed on the tomato RFLP map; Pto (resistance to Pseudomonas syringae), Mi (resistance to root-knot nemotodes) and Tm2a (resistance to tobacco mosaic virus). Further discussion will include the construction of a yeast artificial chromosome library and the collection of additional DNA markers in the regions of interest through RAPD analysis of nearly isogenic lines.The assessment of genetic variability and fingerprinting varieties based on RFLP data will be briefly discussed.Comparative genome mapping in the family Solanaceae has allowed the relationships among tomato, potato, and pepper to be unravelled. Tomato and potato share a near perfect conservation of gene order throughout their genomes. In contrast, while pepper shares most of its single copy DNA with tomato and potato, the order of these markers is highly rearranged compared with the other two species.
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7
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Filipenko EA, Deineko EV, Shumnyi VK. Specific features of T-DNA insertion regions in transgenic plants. RUSS J GENET+ 2009. [DOI: 10.1134/s1022795409110040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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NYBOM HILDE. Genetic variation in ornamental apple trees and their seedlings (Malus, Rosaceae) revealed by DNA ‘fingerprinting’ with the M13 repeat probe. Hereditas 2008. [DOI: 10.1111/j.1601-5223.1990.tb00694.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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9
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Honraet K, De Vos MM, Summerbell RC, van Kempen I, De Saeger S, Vermeersch H, Van Peteghem C, Nelis HJ. Recurrent colonization of successively implanted tracheoesophageal vocal prostheses by a member of the Fusarium solani species complex. J Clin Microbiol 2005; 43:770-7. [PMID: 15695678 PMCID: PMC548046 DOI: 10.1128/jcm.43.2.770-777.2005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2004] [Revised: 06/28/2004] [Accepted: 10/06/2004] [Indexed: 11/20/2022] Open
Abstract
Tracheoesophageal vocal prostheses (TVP) in laryngectomized patients commonly deteriorate due to overgrowth by yeasts, particularly Candida species. We describe the first case of colonization of such devices by a member of the Fusarium solani species complex in a patient with a history of glottal carcinoma. Three isolates, from three prostheses, were found morphologically consistent with the traditional picture of F. solani. Ribosomal sequence analysis showed that the isolates belonged to a distinct, as yet apparently unnamed phylogenetic species within the F. solani species complex. This species, one of two distinct genetic types (genotype 2) traditionally considered part of the plant-pathogenic subtaxon Fusarium solani f. sp. radicicola, has not previously been identified as an agent of human or animal disease, although it is closely related to a known etiologic agent of mycetoma, an Acremonium-like species recently renamed Fusarium falciforme. Sequence and multisatellite M13 polymorphism analysis revealed no distinctions among the case isolates. Production of cyclosporine was detected for all three case isolates.
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Affiliation(s)
- K Honraet
- Laboratory for Pharmaceutical Microbiology, University of Ghent, Harelbekestraat 72, B-9000 Ghent, Belgium
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10
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WAYCOTT MICHELLE. Genetic variation, its assessment and implications to the conservation of seagrasses. Mol Ecol 2002. [DOI: 10.1046/j.1365-294x.1998.00375.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- MICHELLE WAYCOTT
- Department of Botany, The University of Western Australia, Nedlands, Western Australia, 6907, Australia
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11
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Johannesson H, Vasiliauskas R, Dahlberg A, Penttilä R, Stenlid J. Genetic differentiation in Eurasian populations of the postfire ascomycete Daldinia loculata. Mol Ecol 2001; 10:1665-77. [PMID: 11472535 DOI: 10.1046/j.1365-294x.2001.01317.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The genetic population structure of the postfire ascomycete Daldinia loculata was studied to test for differentiation on a continental scale. Ninety-six samples of spore families, each comprising mycelia from six to 10 spores originating from single perithecia, were sampled from one Russian and six Fennoscandian forest sites. Allelic distribution was assayed for six nuclear gene loci by restriction enzyme analyses of polymerase chain reaction (PCR)-amplified gene fragments. In addition, the full sequence of the gene fragment was analysed for a subset of haploid single-ascospore isolates in a multiallelic approach. A third data set was generated by using arbitrary-primed PCR with the core sequence of the phage M13 as primer. Although there was a reduction in heterozygosity in the total population from what would have been expected at random mating, the levels of genetic differentiation among the Eurasian subpopulations of D. loculata were low. All subpopulations were found to be in Hardy-Weinberg equilibrium and gametic equilibrium was observed between all investigated nuclear gene loci. The results obtained by the different markers were consistent; we confirmed low levels of genetic differentiation among the Eurasian subpopulations of D. loculata. The differentiation did not increase with distance; the Russian subpopulation, sampled more than 7000 km from the Fennoscandian subpopulations, was only moderately differentiated from the others (FST = 0.00-0.14). In contrast, one of the Swedish populations was the most highly differentiated from the others, with FST and GST values of 0.10-0.16. The results suggest that D. loculata consists of a long-lived background Eurasian population of latent mycelia in nonburned forests, established by sexual ascospores dispersed from scattered burned forest sites. Local differentiation is probably due to founder effects of populations in areas with low fire frequency. A tentative life cycle of D. loculata is presented.
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Affiliation(s)
- H Johannesson
- Swedish University of Agricultural Sciences, Department of Forest Mycology and Pathology, Box 7026, SE-750 07 Uppsala, Sweden.
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12
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Bishop R, Morzaria S, Gobright E. Linkage of two distinct AT-rich minisatellites at multiple loci in the genome of Theileria parva. Gene 1998; 216:245-54. [PMID: 9729411 DOI: 10.1016/s0378-1119(98)00336-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Minisatellite tandem repeat elements are well known components of vertebrate genomes, but have not yet been extensively characterized in lower eukaryotes. We describe two unusual, AT-rich minisatellites of the protozoan parasite Theileria parva whose sequences are unrelated to the G/C-rich i minisatellite superfamily' of vertebrate and plant genomes. The T. parva tandem repeats, one with a conserved sequence T2-5ACACA (6-17 copies), and the other with a 6-bp core sequence of either ACTATA or TATACT associated with additional variable sequences in repeats of 10-17bp (3-7 copies), were closely linked at more than 20 sites in the T. parva genome, separated by 390, 510 and 660bp at three loci analysed in detail. Such linkage is without precedent in minisatellites so far analysed in other organisms. The minisatellite loci were widely dispersed on 13 out of 33 genomic SfiI fragments, on all four T. parva chromosomes and did not exhibit a telomeric bias in their distribution. Analysis of flanking sequences revealed no obvious conserved sequences between the five loci, or other multicopy repeat sequences outside the minisatellite regions. The T2-5 ACACA minisatellite was highly effective as a multilocus fingerprinting probe for discrimination of T. parva isolates. Analysis of two individual minisatellite loci revealed variation between the genomic DNAs of two T. parva isolates in the copy number of the constituent repeats within the array, similar to that typical of vertebrate minisatellites. 1998 Elsevier Science B.V.
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Affiliation(s)
- R Bishop
- International Livestock Research Institute (ILRI), Nairobi, Kenya.
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13
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Lu J, Knox MR, Ambrose MJ, Brown JK, Ellis TH. Comparative analysis of genetic diversity in pea assessed by RFLP- and PCR-based methods. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1996; 93:1103-1111. [PMID: 24162488 DOI: 10.1007/bf00230132] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/1996] [Accepted: 06/14/1996] [Indexed: 06/02/2023]
Abstract
DNA-based molecular-marker techniques have been proven powerful in genetic diversity estimations. Among them, RFLP was the first and is still the most commonly used in the estimation of genetic diversity of eukaryotic species. The recently developed PCR-based multiple-loci marker techniques, which include RAPD, AFLP, Microsatellite-AFLP and inter-SSR PCR, are playing increasingly important roles in this type of research. Despite the wide application of these techniques, no direct comparison of these methods in the estimation of genetic diversity has been carried out. Here we report a direct comparison of DNA-based RFLP with various PCR-based techniques regarding their informativeness and applicability for genetic diversity analysis. Among ten pea genotypes studied, all the PCR-based methods were much more informative than cDNA-RFLP. Genetic diversity trees were derived from each marker technique, and compared using Mantel's test. By this criterion, all trees derived from the various molecular marker techniques, except for the tree derived from inter-SSR PCR, were significantly correlated, suggesting that these PCR-based techniques could replace RFLP in the estimation of genetic diversity. On the basis of this result, AFLP analysis was applied to assess the genetic diversity of a sample of accessions representing the various species and subspecies within the genus Pisum.
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Affiliation(s)
- J Lu
- John Innes Centre, Colney Lane, NR4 7UH, Norwich, UK
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14
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Orford SJ, Scott NS, Timmis JN. A hypervariable middle repetitive DNA sequence from citrus. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1995; 91:1248-1252. [PMID: 24170053 DOI: 10.1007/bf00220936] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/1995] [Accepted: 02/09/1995] [Indexed: 06/02/2023]
Abstract
The use of hypervariable sequences for DNA typing of plants is focussed on microsatellites and on amplification of regions defined by random (RAPD) or defined (AFLP) primers for PCR analysis of genomes. A hypervariable length of middle repetitive DNA has been isolated from citrus that contains no obvious hypervariable structures. The fingerprinting probe was shown to have an important commercial application in the separation of zygotic from nucellar progeny. A somatic variant of the sequence within one orange tree suggests that somatic variation in hypervariable markers may be a common event.
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Affiliation(s)
- S J Orford
- Department of Genetics, The University of Adelaide, 5005, Adelaide, South Australia
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15
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Bhatia S, Das S, Jain A, Lakshmikumaran M. DNA fingerprinting of Brassica juncea cultivars using microsatellite probes. Electrophoresis 1995; 16:1750-4. [PMID: 8582366 DOI: 10.1002/elps.11501601289] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The genetic variability in the Brassica juncea cultivars was detected by employing in-gel hybridization of restricted DNA to simple repetitive sequences such as (GATA)4, (GACA)4 and (CAC)5. The most informative probe/enzyme combination was (GATA)4/EcoRI, yielding highly polymorphic fingerprint patterns for the B. juncea cultivars. This technique was found to be dependable for establishing the variety specific patterns for most of the cultivars studied, a prerequisite for germplasm preservation. The results of the present study were compared with those reported in our earlier study in which random amplification of polymorphic DNA (RAPD) was used for assessing the genetic variability in the B. juncea cultivars.
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Affiliation(s)
- S Bhatia
- Biotechnology Division, Tata Energy Research Institute, New Delhi, India
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16
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Ramakrishna W, Chowdari KV, Lagu MD, Gupta VS, Ranjekar PK. DNA fingerprinting to detect genetic variation in rice using hypervariable DNA sequences. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1995; 90:1000-1006. [PMID: 24173054 DOI: 10.1007/bf00222913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/1994] [Accepted: 09/30/1994] [Indexed: 06/02/2023]
Abstract
The suitability of miniand microsatellite related DNA sequences capable of detecting multiple loci was investigated for their ability to generate DNA fingerprints in rice. These included R18.1, a cattle-derived probe, the M13 repeat probe, pV47, a human minisatellite probe; and repeats in the Per gene, telomere, chi sequence and 3' hypervariable region of apolipoprotein B. With the R18.1, pV47 and M13 repeat probes, the level of polymorphism was high enough to identify all of the cultivars and wild rice species used in this study. R18.1, which showed the highest level of polymorphism, was estimated to identify up to 2.5×10(20) genotypes of rice. In a F2 population of a 'Basmati-370' and 'Taichung-65' cross, loci detected by R18.1 segregated in a Mendelian fashion. DNA fingerprints were somatically stable and the hybridization patterns were identical among different plants of the same cultivar. Application of the above molecular genetic markers for identification of rice genotypes is reported here for the first time.
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Affiliation(s)
- W Ramakrishna
- Plant Molecular Biology Unit, Division of Biochemical Sciences, National Chemical Laboratory, 411 008, Pune, India
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17
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Savolainen V, Corbaz R, Moncousin C, Spichiger R, Manen JF. Chloroplast DNA variation and parentage analysis in 55 apples. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1995; 90:1138-1141. [PMID: 24173075 DOI: 10.1007/bf00222934] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/1994] [Accepted: 12/15/1994] [Indexed: 06/02/2023]
Abstract
The chloroplastic atpB-rbcL spacer and the first 53 codons of the rbcL coding sequence was sequenced for 40 apple cultivars and 15 wild species. This chloroplast DNA region is 904 base pairs long, and only five mutations sites were found among the tested samples. Although the cpDNA variation was low, some parentages are proposed based on the maternal inheritance of plastid DNA: the male and female parents are specified, or else suggested, for Worcester, Discovery, Starking, Starkrimson, Kidd's Orange Red, Priscilla, and Gloster, as well as for the putative wild origin for Malus x domestica.
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Affiliation(s)
- V Savolainen
- Conservatoire et Jardin Botaniques de Genève, CH-1292, Chambésy, Geneva, Switzerland
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18
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Prince JP, Lackney VK, Angeles C, Blauth JR, Kyle MM. A survey of DNA polymorphism within the genus Capsicum and the fingerprinting of pepper cultivars. Genome 1995; 38:224-31. [PMID: 7774796 DOI: 10.1139/g95-027] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Interspecific genetic variation was examined in the genus Capsicum based on shared restriction fragments in Southern analyses. Four distinct clusters were delineated among 21 accessions of cultivated and wild pepper (C. annuum, C. baccatum, C. chacoense, C. chinense, and C. frutescens). Three tight clusters comprised of accessions belonging to C. annuum, C. frutescens, and C. baccatum, respectively, were formed, along with a fourth cluster comprised of one accession each of C. chinense and C. chacoense. All accessions were differentiated by this technique, and the clusters corresponded closely to previous morphology-based classification. Sufficient DNA polymorphism exists among these accessions that segregating populations useful for restriction fragment length polymorphism (RFLP) mapping could be constructed using any two pepper accessions as parents. Regression analysis indicates that genetic distance is a good predictor (R2 = 0.872) of the level of mappable DNA polymorphism in Capsicum. Intraspecific variability was examined among four C. annuum cultivars (NuMex R Naky, Jupiter, Perennial, and Criollo de Morelos 334) using both RFLPs and randomly amplified polymorphic DNA (RAPDs), allowing a comparative evaluation of the two techniques. Seventeen percent of the clones used singly in RFLP analyses were sufficient for the differentiation of these varieties, as were 12.5% of the RAPD PCR amplifications. Dendrograms constructed from RFLP and RAPD analyses of the intraspecific data are similar but not identical. Southern analysis and RAPD PCR should be useful for DNA fingerprinting and the discrimination of closely related C. annuum genotypes.
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Affiliation(s)
- J P Prince
- Department of Plant Breeding and Biometry, Cornell University, Ithaca, NY 14853, USA
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19
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Sonnante G, Stockton T, Nodari RO, Becerra Velásquez VL, Gepts P. Evolution of genetic diversity during the domestication of common-bean (Phaseolus vulgaris L.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1994; 89:629-35. [PMID: 24177940 DOI: 10.1007/bf00222458] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/1993] [Accepted: 03/18/1994] [Indexed: 05/11/2023]
Abstract
M13 DNA fingerprinting was used to determine evolutionary changes that occurred in Latin American germ plasm and USA cultivars of commonbean (Phaseolus vulgaris L.) during domestication. Linkage mapping experiments showed that M13-related sequences in the common-bean genome were either located at the distal ends of linkage groups or that they were unlinked to each other or to any previously mapped markers. Levels of polymorphism observed by hybridization with M13 (1 probe-enzyme combination) were comparable to those observed by hybridization with single-copy random PstI genomic probes (36 enzyme-probe combinations) but were higher than those observed for isozymes (10 loci). Results indicated that the wild ancestor had diverged into two taxa, one distributed in Middle America (Mexico, Central America, and Colombia) and the other in the Andes (Peru and Argentina); they also suggested separate domestications in the two areas leading to two cultivated gene pools. Domestication in both areas led to pronounced reductions in diversity in cultivated descendants in Middle America and the Andes. The marked lack of polymorphism within commercial classes of USA cultivars suggests that the dispersal of cultivars from the centers of origin and subsequent breeding of improved cultivars led to high levels of genetic uniformity. To our knowledge, this is the first crop for which this reduction in diversity has been documented with a single type of marker in lineages that span the evolution between wild ancestor and advanced cultivars.
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Affiliation(s)
- G Sonnante
- Department of Agronomy and Range Science, University of California, 95616-8515, Davis, CA, USA
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20
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Tourmente S, Deragon JM, Lafleuriel J, Tutois S, Pélissier T, Cuvillier C, Espagnol MC, Picard G. Characterization of minisatellites in Arabidopsis thaliana with sequence similarity to the human minisatellite core sequence. Nucleic Acids Res 1994; 22:3317-21. [PMID: 8078766 PMCID: PMC523724 DOI: 10.1093/nar/22.16.3317] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A strategy based on random PCR amplification was used to isolate new repetitive elements of Arabidopsis thaliana. One of the random PCR product analyzed by this approach contained a tandem repetitive minisatellite sequence composed of 33 bp repeated units. The genomic locus corresponding to this PCR product was isolated by screening a lambda genomic library. New related loci were also isolated from the genomic library by screening with a 14 mer oligonucleotide representing a region conserved among the different repeated units. Alignment of the consensus sequence for each minisatellite locus allowed the definition of an Arabidopsis thaliana core sequence that shows strong sequence similarities with the human core sequence and with the generalized recombination signal Chi of Escherichia coli. The minisatellites were tested for their ability to detect polymorphism, and their chromosomal position was established.
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Affiliation(s)
- S Tourmente
- GDR 977 Biomove CNRS, Université Blaise Pascal, Aubiere, France
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21
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Ramakishana W, Lagu MD, Gupta VS, Ranjekar PK. DNA fingerprinting in rice using oligonucleotide probes specific for simple repetitive DNA sequences. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1994; 88:402-406. [PMID: 24186025 DOI: 10.1007/bf00223651] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/1993] [Accepted: 09/09/1993] [Indexed: 06/02/2023]
Abstract
In this report we describe the use of five oligonucleotide probes, namely (GATA)4, (GACA)4, (GGAT)4, (GAA)6 and (CAC)5, to reveal highly polymorphic DNA regions in rice. With each of the oligonucleotide probes, the level of polymorphism was high enough to distinguish several rice genotypes. Moreover, individual plants of one cultivar showed the same cultivar-specific DNA fingerprint. The multilocus fingerprint patterns were somatically stable. Our study demonstrates that microsatellite-derived DNA fingerprints are ideally suited for the identification of rice genotypes. As the majority of the probes detected a high level of polymorphism, they can be very useful in monitoring and aiding gene introgression from wild rice into cultivars.
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Affiliation(s)
- W Ramakishana
- Plant Molecular Biology Unit, Division of Biochemical Sciences, National Chemical Laboratory, 411008, Pune, India
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Abstract
Various methods from molecular biology reveal sequence polymorphisms in organelle and nuclear DNA that can be used as highly informative markers for the structure and dynamics of genomes at the level of populations and individuals. Molecular markers that can be determined without regard to the phenotype permit an unbiased comparison of the adaptation of organisms to their environment, its genetic basis and its effect on evolution. Several marker types used in ecological research and their uses and limitations arc briefly discussed. PCR-based methods, especially arnitrary-primer-based RAPDs, are likely to be most widely used and receive most attention. The limited use of DNA markers for overall quantitative (phenetic) comparisons of 'genetic variability' and 'generic distance' is stressed and fheir power as qualitative markers for any and all relevant regions in the genome is emphasized. Specific applications relevant to plant ecology are illustrated. These are: identification of organism and genotype even where morphology is of little help, as in mycorrhiza; identification of clones in asexually-reproducing species, even when they are widespread and intermingled; determining if genetic variation in elonal populations comes from mutations within elonal lines or from independent origins of clonal lines; reconstructing the genotype phylogeny and fruit dispersal of elonal (apomicuc) and inbred selling organisms, measuring the degree of outcrossing by offspring exclusion analysis; detecting and analyzing introgression and characterizing reeombinant genotypes in hybrid zones relative to differential adaptive responses: tracing the phylogenetic origin and extent of ecologically differentiated races or species; characterizing the genetic basis, mapping and isolating the genes responsible for special adaptive responses. In a final outlook, 1 speculate about unconventional sources of genetic variation affecting the ecological characteristics of plants that will become accessible to experimental analysis with the new molecular methods. Contents Summary 403 I. Introduction 404 II. Most ecological applications concern markers in the nuclear geonome 404 III. DNA polymorphisms differ from allozyme pohmorphisms 404 IV. Types of molecular marker 405 V. The application of markers in ecology 409 VI. From marker to character 413 VII. Outlook 414 References 414.
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Affiliation(s)
- Konrad Bachmann
- Hugo de Vries Laboratory, University of Amsterdam, Kruislaan 318, NL-1098 SM Amsterdam, The Netherlands
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Alberte RS, Suba GK, Procaccini G, Zimmerman RC, Fain SR. Assessment of genetic diversity of seagrass populations using DNA fingerprinting: implications for population stability and management. Proc Natl Acad Sci U S A 1994; 91:1049-53. [PMID: 11607458 PMCID: PMC521451 DOI: 10.1073/pnas.91.3.1049] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Populations of the temperate seagrass, Zostera marina L. (eelgrass), often exist as discontinuous beds in estuaries, harbors, and bays where they can reproduce sexually or vegetatively through clonal propagation. We examined the genetic structure of three geographically and morphologically distinct populations from central California (Elkhorn Slough, Tomales Bay, and Del Monte Beach), using multilocus restriction fragment length polymorphisms (DNA fingerprints). Within-population genetic similarity (Sw) values for the three eelgrass populations ranged from 0.44 to 0.68. The Tomales Bay population located in an undisturbed, littoral site possessed a within-population genetic similarity (Sw = 0.44) that was significantly lower than those of the other two populations. Cluster analysis identified genetic substructure in only the undisturbed subtidal population (Del Monte Beach). Between-population similarity values (Sb) for all pairwise comparisons ranged from 0.47 to 0.51. The three eelgrass populations show significantly less between locale genetic similarity than found within populations, indicating that gene flow is restricted between locales even though two of the populations are separated by only 30 km. The study demonstrates that (i) natural populations of Z. marina from both disturbed and undisturbed habitats possess high genetic diversity and are not primarily clonal, (ii) gene flow is restricted even between populations in close proximity, (iii) an intertidal population from a highly disturbed habital shows much lower genetic diversity than an intertidal population from an undisturbed site, and (iv) DNA fingerprinting techniques can be exploited to understand gene flow and population genetic structure in Z. marina, a widespread and ecologically important species, and as such are relevant to the management of this coastal resource.
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Affiliation(s)
- R S Alberte
- Molecular, Cell and Environmental Biology Program, Office of Naval Research, Arlington, VA 22217, USA
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24
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Ashley MV, Dow BD. The use of microsatellite analysis in population biology: background, methods and potential applications. EXS 1994; 69:185-201. [PMID: 7994106 DOI: 10.1007/978-3-0348-7527-1_10] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A promising technique currently emerging for population studies is the analysis of microsatellite DNAs. Microsatellite alleles offer several advantages over other types of molecular markers. They are abundant, highly variable, and can be assayed from minute quantities of DNA using PCR. Their major disadvantage is that it is usually necessary to screen genomic libraries to identify and characterize microsatellite loci for each species under investigation. The first goal of this chapter is to summarize background information having implications for population studies. This information comes primarily from human genome literature and is therefore not easily accessible to many population biologists. Secondly, because microsatellite analysis uses molecular approaches that are new to most population biologists, we attempt to provide a rationale and overview of methodology. Finally, we review population studies to date that have used microsatellite analysis and offer our perspective on the potential for future studies.
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Affiliation(s)
- M V Ashley
- Department of Biological Sciences, University of Illinois at Chicago, 60680
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25
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Wolff K, Rogstad SH, Schaal BA. Population and species variation of minisatellite DNA in Plantago. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1994; 87:733-740. [PMID: 24190417 DOI: 10.1007/bf00222899] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/1993] [Accepted: 06/28/1993] [Indexed: 06/02/2023]
Abstract
Three Plantago species were surveyed for within- and between-population variation at DNA sequences detected with the M13 minisatellite probe. The levels and patterns of variation detected by this probe correspond to those expected from the mating systems of the species. The highly-selfing species P. major has a relatively low variability of minisatellite sequences within populations and considerable differentiation between populations. The outcrossing species P. lanceolata exhibits higher minisatellite variability within populations and moderate differentiation between populations. P. coronopus, with a mixed mating system, has levels of variation intermediate between P. major and P. lanceolata. The levels of variation within and between populations corresponds, in general, to the levels of allozyme variation determined in an earlier study. Mating system and population structure appear to have a major influence on M13-detected fragment variation.
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Affiliation(s)
- K Wolff
- Department of Biology, Washington University, Campus Box 1137, 63130, St. Louis, MO, USA
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Timms P, Kato J, Maugeri M, White N. DNA fingerprint analysis of a free-range koala population. Biochem Genet 1993; 31:363-74. [PMID: 8122995 DOI: 10.1007/bf02396223] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Thirty-six koalas in a free-range Queensland population were fingerprinted using an M13 probe in combination with MspI digestion. The technique was found to be highly repeatable, with estimates of 0.1-1.6% within-gel error and 0.1-2.5% between-gel error. Of the 43 different-size fingerprint bands produced in the population, only 2 bands were common to all 36 koalas. Ten bands were quite rare, occurring at a frequency of 0.2 or less. All 36 koalas had unique DNA fingerprints (probability of 1.88 x 10(-7)), which enabled them each to be uniquely identified. Despite this, there was still a high level of band sharing in the population (mean number of shared bands = 0.749). This level is much higher than that reported for humans, birds, cats, dogs, and cattle but not as high as that reported previously for Victorian koalas. This lack of genetic variation may influence the ability of the population to respond to stress situations, such as lack of food, habitat destruction, and disease.
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Affiliation(s)
- P Timms
- Centre for Molecular Biotechnology, School of Life Science, Queensland University of Technology, Brisbane, Australia
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28
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Broun P, Tanksley SD. Characterization of tomato DNA clones with sequence similarity to human minisatellites 33.6 and 33.15. PLANT MOLECULAR BIOLOGY 1993; 23:231-42. [PMID: 8219062 DOI: 10.1007/bf00029000] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
A tomato lambda genomic library was screened with the human minisatellites 33.6 and 33.15. Similar tomato sequences are estimated to occur on average every 4000 kb. In thirteen hybridizing clones characterized, the size of minisatellite arrays varied between 100 bp and 3 kb. The structure of the repetitive elements is complex as the human core sequence is interspersed with other elements. In three cases, sequences similar to the human minisatellites were part of a higher-order tandem repeat. The chromosomal position of these sequences was established by ascertaining linkage to previously mapped RFLP markers. In contrast to the human genome, no clustering of minisatellite loci was observed in tomato. The fingerprints generated by hybridizing tomato minisatellites to genomic DNA of a set of cultivars were, in two cases, more variable than those obtained with 33.6 or 33.15. Two of the characterized probes detected 4-8 alleles of a single locus, which displayed 10-15 times more polymorphism than random RFLP clones. Some minisatellites contain di- and tri-nucleotide microsatellite repeated motifs which may account for the high level of polymorphism detected with these clones.
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Affiliation(s)
- P Broun
- Department of Plant Breeding and Biometry, Cornell University, Ithaca, NY 14853
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29
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Jung C, Pillen K, Frese L, Fähr S, Melchinger AE. Phylogenetic relationships between cultivated and wild species of the genusBeta revealed by DNA "fingerprinting". TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1993; 86:449-457. [PMID: 24193592 DOI: 10.1007/bf00838560] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/1992] [Accepted: 11/03/1992] [Indexed: 06/02/2023]
Abstract
Forty-one accessions of the genusBeta representing wild and cultivated species of all sections were analyzed by DNA "fingerprinting". Four sugar beet minisatellite DNA probes revealed characteristic banding patterns with Southern-hybridizedBeta DNA restricted withHindIII. A total of 111 polymorphic RFLP bands were scored across all accessions. Cluster analysis based on genetic similarity estimates for all 820 combinations of accessions revealed the following results. (1) All accessions could unambiguously be identified by a characteristic RFLP banding pattern. (2) The sugar beet cultivars examined displayed a low level of genetic diversity; they showed high similarity toB. Vulgaris ssp.maritima but low genetic similarity to the other wild species of section I. (3) In most cases, the present taxonomic classification of the genusBeta was confirmed. Species of sections II, III, and IV were clearly distinguishable from those of section I except forB. Macrocarpa, which showed high similarity to wild species of section II. In a second experiment, 108 single-copy RFLP probes from sugar beet were Southern hybridized withB. procumbens DNA. A surprisingly low degree of homology (34%) was found. The results are discussed with regard to the taxonomic classification of the genusBeta.
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Affiliation(s)
- C Jung
- Institute of Botany, Ludwig-Maximilians-University Munich, Menzinger Strasse 67, 19, Munich, Germany
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30
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Besse P, Lebrun P, Seguin M, Lanaud C. DNA fingerprints in Hevea brasiliensis (rubber tree) using human minisatellite probes. Heredity (Edinb) 1993. [DOI: 10.1038/hdy.1993.35] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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31
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FUKUCHI A, KIKUCHI F, HIROCHIKA H. DNA fingerprinting of cultivated rice with rice retrotransposon probes. Genes Genet Syst 1993. [DOI: 10.1266/ggs.68.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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33
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FUKUCHI A, KIKUCHI F, HIROCHIKA H. DNA fingerprinting of cultivated rice with rice retrotransposon probes. ACTA ACUST UNITED AC 1993. [DOI: 10.1266/jjg.68.195] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Atushi FUKUCHI
- Agricultural Research Laboratories, Takeda Chemical Industries, Ltd
| | | | - Hirohiko HIROCHIKA
- Department of Molecular Biology, National Institute of Agrobiological Resources
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34
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Milgroom MG, Lipari SE, Powell WA. DNA fingerprinting and analysis of population structure in the chestnut blight fungus, Cryphonectria parasitica. Genetics 1992; 131:297-306. [PMID: 1353735 PMCID: PMC1205005 DOI: 10.1093/genetics/131.2.297] [Citation(s) in RCA: 101] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We analyzed DNA fingerprints in the chestnut blight fungus, Cryphonectria parasitica, for stability, inheritance, linkage and variability in a natural population. DNA fingerprints resulting from hybridization with a dispersed moderately repetitive DNA sequence of C. parasitica in plasmid pMS5.1 hybridized to 6-17 restriction fragments per individual isolate. In a laboratory cross and from progeny from a single perithecium collected from a field population, the presence/absence of 11 fragments in the laboratory cross and 12 fragments in the field progeny set segregated in 1:1 ratios. Two fragments in each progeny set cosegregated; no other linkage was detected among the segregating fragments. Mutations, identified by missing bands, were detected for only one fragment in which 4 of 43 progeny lacked a band present in both parents; no novel fragments were detected in any progeny. All other fragments appeared to be stably inherited. Hybridization patterns did not change during vegetative growth or sporulation. However, fingerprint patterns of single conidial isolates of strains EP155 and EP67 were found to be heterogenous due to mutations that occurred during culturing in the laboratory since these strains were first isolated in 1976-1977. In a population sample of 39 C. parasitica isolates, we found 33 different fingerprint patterns with pMS5.1. Most isolates differed from all other isolates by the presence or absence of several fragments. Six fingerprint patterns each occurred twice. Isolates with identical fingerprints occurred in cankers on the same chestnut stems three times; isolates within the other three pairs were isolated from cankers more than 5 m apart. The null hypothesis of random mating in this population could not be rejected if the six putative clones were removed from the analysis. Thus, a rough estimate of the clonal fraction of this population is 6 in 39 isolates (15.4%).
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Affiliation(s)
- M G Milgroom
- Department of Plant Pathology, Cornell University, Ithaca, New York 14853-5908
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35
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Liu YG, Ikeda TM, Tsunewaki K. Moderately repeated, dispersed, and highly variable (MRDHV) genomic sequences of common wheat usable for cultivar identification. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1992; 84:535-543. [PMID: 24201338 DOI: 10.1007/bf00224149] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/1991] [Accepted: 01/09/1992] [Indexed: 06/02/2023]
Abstract
A 4.1-kb DNA clone (pTag546), which when used as a probe produces hypervariable DNA fingerprints in common wheat, was found among the genomic clones of Triticum aestivum cv 'Chinese Spring'. Nulli-tetrasomic analyses revealed that the sequences hybridizing to this clone were located at 12 loci on ten chromosomes of the A, B, and D genomes of common wheat. The complete nucleotide sequence of pTag546 was shown to have a transposable element-like structure within it, though no open reading frame was detected. The sequences located in the A and D genomes were assumed to have been derived from the B genome by transposition. Using this clone as a probe, we were able to identify 56 common wheat cultivars, some of which are closely related, by their DNA fingerprints. This suggests that pTag 546 will be useful for cultivar identification as well as for germ plasm evaluation in wheat.
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Affiliation(s)
- Y G Liu
- Laboratory of Genetics, Faculty of Agriculture, Kyoto University, Sakyo-ku, 606-01, Kyoto, Japan
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36
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Beyermann B, Nürnberg P, Weihe A, Meixner M, Epplen JT, Börner T. Fingerprinting plant genomes with oligonucleotide probes specific for simple repetitive DNA sequences. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1992; 83:691-694. [PMID: 24202742 DOI: 10.1007/bf00226686] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/1990] [Accepted: 09/03/1991] [Indexed: 06/02/2023]
Abstract
Oligonucleotides hybridizing to simple repetitive DNA patterns are highly informative as probes for DNA fingerprinting in all investigated animal species, including man. Here we demonstrate the applicability of this technique in higher plants. The oligonucleotide probes (GTG)5 and (GATA)4 were used to investigate the differences in DNA fingerprint patterns of the following angiosperm species: Triticum aestivum, Secale cereale, Hordeum vulgare, Beta vulgaris, Petunia hybrida, Brassica oleracea, and Nicotiana tabacum. Two species, Hordeum vulgare as a monocot and Beta vulgaris as a dicot, were analyzed in more detail. Their genomes differ considerably in both amount and organization of the simple repetitive sequences (GATA)n, (GACA)n, (GTG)n, and (CT)n due to the evolutionary distance of these two species. Furthermore, several lines and cultivars of Beta vulgaris and Hordeum vulgare can clearly be distinguished on the basis of their highly polymorphic patterns of these repetitive sequences.
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Affiliation(s)
- B Beyermann
- Institute of Genetics, Department of Biology, Humboldt University, Invalidenstrasse 43, O-1040, Berlin, FRG
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37
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Lönn M, Tegelström H, Prentice HC. The synthetic (TG)n polydinucleotide: a probe for gene flow and paternity studies in wild plant populations? Nucleic Acids Res 1992; 20:1153. [PMID: 1549489 PMCID: PMC312116 DOI: 10.1093/nar/20.5.1153] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- M Lönn
- Department of Genetics, Uppsala University, Sweden
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38
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Bierwerth S, Kahl G, Weigand F, Weising K. Oligonucleotide fingerprinting of plant and fungal genomes: a comparison of radioactive, colorigenic and chemiluminescent detection methods. Electrophoresis 1992; 13:115-22. [PMID: 1592040 DOI: 10.1002/elps.1150130125] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Digoxigenated oligonucleotide probes complementary to simple repetitive DNA sequences were introduced into nonradioactive fingerprint analysis of plant and fungal DNA. The fragment patterns, obtained by blot hybridization of TaqI-restricted DNA from chickpea (Cicer arietinum) and its fungal pathogen Ascochyta rabiei with digoxigenated probes and either a colorigenic or a chemiluminescent detection method, were compared to those obtained with 32P-labeled probes. In combination with alkaline phosphatase and its chemiluminescent substrate 3-(2'-spiroadamantane)-4-methoxy-4-(3"-phosphoryloxy)phenyl- 1,2-dioxetane (AMPPD) digoxigenated oligonucleotides yielded clear-cut fingerprints with high signal-to-background ratios within several minutes of exposure to X-ray films. The chemiluminescence reaction remained stable for at least two weeks. A comparison of banding patterns obtained by radioactive versus digoxigenin-based hybridization and detection techniques revealed substantial differences in the relative signal intensities of bands. Both nonradioactive techniques show a tendency to "equalize" band intensity differences. Whereas 32P-labeled oligonucleotides are also applicable to in situ hybridization with DNA immobilized in dried agarose gels, gel hybridization did not work efficiently with digoxigenated probes and either substrate.
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Affiliation(s)
- S Bierwerth
- Department of Biology, University of Frankfurt, Germany
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39
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40
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Taylor AC, Graves JA, Murray ND, Sherwin WB. Conservation genetics of the koala (Phascolarctos cinereus). II. Limited variability in minisatellite DNA sequences. Biochem Genet 1991; 29:355-63. [PMID: 1747097 DOI: 10.1007/bf00554143] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have examined variability in TaqI and EcoRI restriction fragment sizes of DNA from the koala (Phascolarctos cinereus) using six HVR (hypervariable region) probes which reveal complex, individual-specific restriction patterns in humans and other species. Frequency of band-sharing among unrelated koalas was extremely high. This result is likely to be a consequence of the history of near-extinction and artificial recolonization of the populations we have studied, rather than a general marsupial or koala-wide phenomenon.
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Affiliation(s)
- A C Taylor
- Department of Genetics and Human Variation, La Trobe University, Bundoora, Victoria, Australia
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41
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Meyer W, Koch A, Niemann C, Beyermann B, Epplen JT, Börner T. Differentiation of species and strains among filamentous fungi by DNA fingerprinting. Curr Genet 1991; 19:239-42. [PMID: 1907892 DOI: 10.1007/bf00336493] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We have analyzed 11 strains and clones, representing five species (Penicillium janthinellum, P. citrioviridae, P. chrysogenum, Aspergillus niger, Trichoderma harzianum) and three genera of filamentous fungi, for the presence of hypervariable loci in their genomes by hybridization with simple repeat oligonucleotides and the DNA of phage M13. The oligonucleotide probes (CT)8, (GTG)5 and (GACA)4, as well as M13 DNA, are informative probes for fingerprinting in all genera and species tested. The probe (GATA)4 produced informative fingerprints only with the genomic DNA of A. niger. There was no similarity between the fingerprints originating from fungi of different genera and also little similarity between the fingerprints of different species belonging to the same genus. Fingerprints of strains of the same species differed only slightly from each other. Fingerprints of clones originating from one strain were identical. The results indicate that DNA fingerprinting is a powerful method to differentiate species and strains of filamentous fungi.
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Affiliation(s)
- W Meyer
- Institut für Genetik, Humboldt-Universität, Berlin, Federal Republic of Germany
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42
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Weising K, Beyermann B, Ramser J, Kahl G. Plant DNA fingerprinting with radioactive and digoxigenated oligonucleotide probes complementary to simple repetitive DNA sequences. Electrophoresis 1991; 12:159-69. [PMID: 2040264 DOI: 10.1002/elps.1150120211] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The existence of hypervariable DNA sequences in nuclear genomes, and the use of appropriate "fingerprinting" probes to detect them, has gained widespread scientific interest, and also led to multiple applications in diverse areas. Two years ago, the new technique of "DNA fingerprinting" was also introduced into the analysis and characterization of plant genomes, initially by using human or M13 minisatellites as probes. In the present article, we demonstrate the applicability for plant DNA fingerprinting of oligonucleotide probes specific for simple repetitive DNA sequences. We show that various levels of intra- and interspecific polymorphisms can be detected; the information to be gained depends on the optimal combination of probe and species. Variety-specific patterns were obtained in several cases. Some probes revealed variability between individuals. Somatic variability was not observed. Different DNA isolation and purification procedures were tested in order to introduce a fast and easy-to-perform isolation method suitable for a large variety of plant species. Nonradioactive fingerprinting was performed using digoxigenated oligonucleotides as probes. Banding patterns obtained with radioactive and digoxigenin-based labeling techniques proved to be of similar quality.
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Affiliation(s)
- K Weising
- Pflanzliche Molekularbiologie, Fachbereich Biologie, Johann Wolfgang Goethe-Universität, Frankfurt, Germany
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Abstract
In the last decade RFLP analysis has evolved from an idea that seemed promising to a well-established tool that has led to fundamental advances in several fields. Construction of genetic maps has now become feasible in many organisms where it would previously have been impractical. Since genetic maps are of general utility for many sorts of biological research, they cannot fail to have a significant impact in the immediate future. As genetic maps become reconciled with physical maps in several plants, it will become possible to clone virtually any gene. For a plant breeder this will have the effect of broadening the gene pool available for plant improvement to include virtually all organisms, including animals and microorganisms. Much remains to be done, however. We need basic studies of the biochemistry, physiology, and genetics of plants and the insects and pathogens infesting them to be able to identify target genes for cloning. We need basic studies of transformation and gene expression to be able to have introduced genes expressed in transformed plants in the proper amounts and in the desired tissues. It must also be kept in mind that the best of our present technologies only suffice to clone and transform single genes. We will have to make another large jump in capabilities to be able to transfer QTL between plants. Since the most important agronomic traits are controlled by QTL, this effort will have to be undertaken. However, the future looks promising for plant breeding and RFLP analysis. The molecular genetic revolution now has every indication of being transferrable to practical problems such as plant breeding, and the first steps in this transferral have already occurred through the medium of RFLP analysis.
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Affiliation(s)
- G Kochert
- Department of Botany, University of Georgia, Athens 30602
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46
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Liston A, Rieseberg LH, Mistretta O. Ribosomal DNA evidence for hybridization between island endemic species of Lotus. BIOCHEM SYST ECOL 1990. [DOI: 10.1016/0305-1978(90)90067-p] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Nybom H, Schaal BA. DNA "fingerprints" applied to paternity analysis in apples (Malus x domestica). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1990; 79:763-8. [PMID: 24226736 DOI: 10.1007/bf00224242] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/1990] [Accepted: 09/15/1990] [Indexed: 05/06/2023]
Abstract
Analysis of minisatellite DNA sequences, yielding so called DNA "fingerprints", has proven useful in paternity analysis for several different organisms. Here 64 apple seedlings, grown from seeds collected in an orchard with three cultivars, were analyzed using the M13 "fingerprint" probe. Paternity could be determined for 56 of the seedlings, 2 of which were derived through selfing. The analysis was facilitated by the occurrence of a multiallelic locus. The five different fragments determined by this locus migrated to similar positions, whether digesting the DNA with restriction enzymes TaqI or RsaI.
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Affiliation(s)
- H Nybom
- Biology Department, Washington University, Box 1137, 63130, Saint Louis, MO, USA
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48
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Inglehearn CF, Cooke HJ. A VNTR immediately adjacent to the human pseudoautosomal telomere. Nucleic Acids Res 1990; 18:471-6. [PMID: 2155401 PMCID: PMC333450 DOI: 10.1093/nar/18.3.471] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The probe 29C1 detects a hypervariable locus 18kb from the telomere of the human X and Y chromosomes, in the pseudoautosomal region. Here we report that hypervariability of fragments containing this sequence in the human population arises by loss or gain of a 31 base pair GC rich repeat. Labelled 29C1 does not detect a DNA fingerprint at low stringency, though the consensus repeat sequence does show some similarity to previously reported minisatellites. Sequence within the repeat block has G and C rich strands, a feature associated with sequences at the telomeres of many higher organisms. The repeat block shows sequence characteristics normally associated with a low methylation island, though the locus is methylated and does not appear to be transcribed.
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Nybom H, Rogstad SH, Schaal BA. Genetic variation detected by use of the M13 "DNA fingerprint" probe in Malus, Prunus, and Rubus (Rosaceae). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1990; 79:153-156. [PMID: 24226211 DOI: 10.1007/bf00225944] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/1989] [Accepted: 11/02/1989] [Indexed: 06/02/2023]
Abstract
Recently, "DNA fingerprints" have been reported in a wide array of organisms. We used the M13 repeat probe on several genera and species in the angiosperm family Rosaceae. Four apple cultivars could be differentiated when any one of five restriction enzymes was used to analyze minisatellite DNA. Similarly, four individual trees of Prunus serotina (black cherry) exhibited different "fingerprints" with each of four enyzmes. A total of 14 Rubus (blackberries and raspberries) plants representing four species were investigated with two enzymes. Extensive inter-and intraspecific variation was found. However, some closely growing plants had identical "fingerprints", probably due to their being derived through vegetative propagation.
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Affiliation(s)
- H Nybom
- Biology Department, Washington University, Box 1137, 63130, Saint Louis, MO, USA
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Ely J, Ferrell RE. DNA “fingerprints” and paternity ascertainment in chimpanzees (Pan troglodytes). Zoo Biol 1990. [DOI: 10.1002/zoo.1430090203] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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