2010年4月
Mapping of quantitative trait loci for high level of self-incompatibility in Brassica rapa L.
GENOME
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- 巻
- 53
- 号
- 4
- 開始ページ
- 257
- 終了ページ
- 265
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1139/G10-001
- 出版者・発行元
- CANADIAN SCIENCE PUBLISHING
The level of self-incompatibility (SI) is important to the purity of F-1 seeds produced using the SI system of Brassica vegetables. To analyze the genetic basis of the level of SI, we generated an F-2 population derived from a cross between a turnip inbred line showing a high level of SI and a Chinese cabbage inbred line showing a low level, and evaluated the level of SI under insect pollination in two years. We constructed a detailed linkage map of Brassica rapa from the F-2 progeny, consisting of SSR, SNP, indel, and CAPS loci segregating into 10 linkage groups covering approximately 700 cM. Five quantitative trait loci (QTL) for high-level SI were identified. The phenotypic variation explained by the QTL ranged between 7.2% and 23.8%. Two QTL were detected in both years. Mapping of SI-related genes revealed that these QTL were co-localized with SLG on R07 and MLPK on R03. This is the first report of QTL for high-level SI evaluated under insect pollination in a Brassica vegetable. Our results could be useful for the marker-assisted selection of parental lines with a stable SI.
- リンク情報
- ID情報
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- DOI : 10.1139/G10-001
- ISSN : 0831-2796
- eISSN : 1480-3321
- PubMed ID : 20616857
- Web of Science ID : WOS:000278774200002