遗传 ›› 2000, Vol. 22 ›› Issue (5): 316-318.
汪小凡1;陈家宽2 WANG Xiao-fan1;CHEN Jia-kuan2
摘要: 用自然群体取样和同工酶遗传标记的方法对沼生植物野慈姑(Sagittaria trifolia Linn.)及其变型长瓣慈姑[S.trifolia Linn.f.longiloba(Turcz.)Makino]的异交率作了定量研究,3个自然群体的异交率估计值为=91.0%~98.0%,表明该种为异交占绝对优势的交配系统。在野慈姑各群体间未发现异交率的显著差异。
Abstract:The outcrossing rates of Sagittaria trifolia Linn.and S.trifolia Linn.f.longiloba(Turcz.) Makino,a helophyte species and a form under the species,were estimated by sampling from natural habitats and using isozyme locus as genetic marker.According to the values of outcrossing rates in 3 populations( =91.0%~98.0%),the mating system of the species studied was found to be dominated by outcrossing mechanisms.Statistical analysis suggested that there was no significant difference in outcrossing rates among the populations.