Variation in heading date conceals quantitative trait loci for other traits of importance in breeding selection of rice
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- Hori Kiyosumi
- National Institute of Agrobiological Sciences
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- Kataoka Tomomori
- National Agriculture and Food Research Organization (NARO), Kyushu Okinawa Agricultural Research Center
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- Miura Kiyoyuki
- NARO Agricultural Research Center, Hokuriku Research Center
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- Yamaguchi Masayuki
- NARO Tohoku Agricultural Research Center
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- Saka Norikuni
- Aichi Agricultural Research Center, Mountainous Region Agricultural Research Institute
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- Nakahara Takahiro
- Miyazaki Agricultural Research Institute
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- Sunohara Yoshihiro
- NARO Institute of Crop Science
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- Ebana Kaworu
- National Institute of Agrobiological Sciences
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- Yano Masahiro
- National Institute of Agrobiological Sciences
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説明
To identify quantitative trait loci (QTLs) associated with the primary target traits for selection in practical rice breeding programs, backcross inbred lines (BILs) derived from crosses between temperate japonica rice cultivars Nipponbare and Koshihikari were evaluated for 50 agronomic traits at six experimental fields located throughout Japan. Thirty-three of the 50 traits were significantly correlated with heading date. Using a linkage map including 647 single-nucleotide polymorphisms (SNPs), a total of 122 QTLs for 38 traits were mapped on all rice chromosomes except chromosomes 5 and 9. Fifty-eight of the 122 QTLs were detected near the heading date QTLs Hd16 and Hd17 and the remaining 64 QTLs were found in other chromosome regions. QTL analysis of 51 BILs having homozygous for the Koshihikari chromosome segments around Hd16 and Hd17 allowed us to detect 40 QTLs associated with 27 traits; 23 of these QTLs had not been detected in the original analysis. Among the 97 QTLs for the 30 traits measured in multiple environments, the genotype-by-environment interaction was significant for 44 QTLs and not significant for 53 QTLs. These results led us to propose a new selection strategy to improve agronomic performance in temperate japonica rice cultivars.<br>
収録刊行物
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- Breeding Science
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Breeding Science 62 (3), 223-234, 2012
日本育種学会
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詳細情報 詳細情報について
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- CRID
- 1390282679698818304
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- NII論文ID
- 130004057162
- 10030870146
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- NII書誌ID
- AA11317194
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- COI
- 1:STN:280:DC%2BC3s3gvF2gtQ%3D%3D
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- ISSN
- 13473735
- 13447610
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- NDL書誌ID
- 023922317
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- PubMed
- 23226082
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 使用不可