Role of maternal tissues in qLG-9 control of seed longevity in rice (Oryza sativa L.)

DOI Web Site Web Site 参考文献27件

この論文をさがす

説明

We examined the role of the hull, seed coat and embryo in the effect of qLG-9, as a first step to elucidate the mechanism(s) responsible for seed longevity in rice. The effects of the other proposed QTLs for seed longevity, qLG-2 and qLG-4, were also investigated. We used chromosome segment substitution lines (CSSLs) derived from a cross between a japonica variety (Koshihikari) and an indica variety (Kasalath) to isolate each QTL. To examine the seed longevity, a germination test was performed after an aging treatment. Both in unhulled and hulled seeds, qLG-9 (located on chromosome 9) increased the seed longevity, unlike qLG-2 and qLG-4 (located on chromosomes 2 and 4, respectively). A germination test using unhulled seeds of the reciprocal crosses between Koshihikari and SL226, the CSSL harboring qLG-9, failed to reveal a maternal effect from the hull or seed coat on the longevity. Thus, it was assumed that the increased seed longevity conferred by qLG-9 was associated primarily with embryonic and/or endospermic factors.<br>

収録刊行物

参考文献 (27)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ