标题:
粳稻落粒性遗传分析Genetic Analysis of Seed Shattering in Japonic Rice (Oryza sativa L.)
作者:
童继平, 吴跃进, 徐九文, 韩正姝, 方文贤
关键字:
粳稻, 落粒性, 显性难落粒基因Sh-t, 隐性易落粒基因sh-tJaponic Rice (Oryza sativa L.), Seed Shattering, Nonshattering Gene Sh-t, Shattering Gene sh-t
期刊名称:
《Botanical Research》, Vol.4 No.3, 2015-06-30
摘要:
落粒性是水稻的重要生物学性状之一，对于提高产量降低损失具有重要意义，为了阐明水稻落粒性机理，本文研究了难落粒粳稻品种C418与易落粒粳稻品种春江100及其杂种后代F1、F2落粒性的遗传变异特点。结果表明：1) C418的难落粒与春江100的易落粒表现差异受一对细胞核基因控制，无细胞质效应；2) C418为难落粒显性基因携带品种，文章将该基因命名为Sh-t，春江100为易落粒隐性基因携带品种，文章将该基因命名为sh-t。Seed shattering is one of the important biological traits in rice. To reveal the genetic character of the seed shattering in Japonic rice, a cross between C418 (japonica cv., nonshattering) and Chun-jiang100 (japonica cv., shattering) was made. Seed shattering of F1, F2 progenies derived from re-ciprocal crosses between C418 and Chunjiang100 and their parents were recorded. The results revealed that there was only one dominant gene locus involved in the control of the seed shattering in this cross. The nonshattering gene carryied by C418 was temporarily designated Sh-t, and the shattering genes carryied by Chunjiang100 was temporarily designated sh-t, respectively.