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。
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
出处
《遗传》
CAS
CSCD
北大核心
2000年第5期316-318,共3页
Hereditas（Beijing)
基金
国家自然科学基金资助!项目(39870082)
关键词
野慈姑
自然群体
异交率
交配系统
系统演化
Sagittaria trifolia L.
natural population
outcrossing rate
mating system
