First Report of Male Sterility in Self-pollinating Buckwheat
Two sources of male sterility, hl 1 and 05AC seg4-2g, found in self-pollinating buckwheat are reported in this study. The line hl 1 had 37 sterile plants which were derived from the interspecific hybrid BC4F3:4, while the line 05AC seg4-2g was found in progeny of regenerants from F1 anther culture．Fertility was readily restored in both lines by crossing the sterile plants with fertile plants, suggesting a genic sterility type(GMS)．When hl 1 sterile plants were crossed with hl 1 fertile plants, the F1 plants were either all fertile or had both fertile and sterile plants, indicating some fertile plants in hl 1 carried a sterile allele which could be used for maintaining the sterility．When hl 1 sterile plants were crossed with fertile lines, other than hl 1, all F1 plants were fertile, which demonstrated the possibility of the utilization of this sterility in hybrid production．Four F2 populations, derived from F1 fertile plants, segregated in a ratio of 3：1 of fertile：sterile, confirming one nuclear gene(ms)control of the sterility. The second sterile line, 05AC seg4-2g is 100% sterile with no selfed seeds being set. In five crosses between this sterile line and the fertile lines(sister and non-sister), 106 F1 plants were fertile and three plants were sterile．Further progeny analysis will continue on the backcrosses and F2 populations in the line 05AC seg4-2g．
Male sterility Serf-pollinating Buckwheat
Yingjie Wang Clayton G.Campbell
Kade Research Ltd., Morden, MB, Canada
国际会议
The 10th International Symposium on Buckwheat(第十届国际荞麦会议)
陕西杨凌
英文
19-24
2007-08-14（万方平台首次上网日期，不代表论文的发表时间）