| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-06-05 |
| タイトル |
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タイトル |
Assessment of genetic diversity of accessions in Brassicaceae genetic resources by frequency distribution analysis of S haplotypes |
| タイトル |
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タイトル |
Assessment of genetic diversity of accessions in Brassicaceae genetic resources by frequency distribution analysis of S haplotypes |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
TAKUNO, Shohei
OIKAWA, Eriko
KITASHIBA, Hiroyasu
NISHIO, Takeshi
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| 著者別名 |
宅野, 将平
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Plant genetic resources are important sources of genetic variation for improving crop varieties as breeding materials. Conservation of such resources of allogamous species requires maintenance of the genetic diversity within each accession to avoid inbreeding depression and loss of rare alleles. For assessment of genetic diversity in the self-incompatibility locus (S locus), which is critically involved in the chance of mating, we developed a dot-blot genotyping method for self-incompatibility (S) haplotypes and applied it to indigenous, miscellaneous landraces of Brassica rapa, provided by the IPK Gene Bank (Gatersleben, Germany) and the Tohoku University Brassica Seed Bank (Sendai, Japan), in which landraces are maintained using different population sizes. This method effectively determined S genotypes of more than 500 individuals from the focal landraces. Although our results suggest that these landraces might possess sufficient numbers of S haplotypes, the strong reduction of frequencies of recessive S haplotypes occurred, probably owing to genetic drift. Based on these results, we herein discuss an appropriate way to conserve genetic diversity of allogamous plant resources in a gene bank. |
| 書誌情報 |
Theoretical and Applied Genetics
en : Theoretical and Applied Genetics
巻 120,
号 6,
p. 1129-1138,
発行日 2010-04
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| 出版者 |
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出版者 |
SpringerLink |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0040-5752 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1007/s00122-009-1240-x |
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関連名称 |
10.1007/s00122-009-1240-x |
| 権利 |
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権利情報 |
SpringerLink(The original publication is available at www.springerlink.com) |
