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作 者 ：陈丙义1，黄金凤1，高志红1，章 镇1,2，乔玉山1,2*

期 刊 ：西北植物学报 2012年 8期 页码：1567~1572

关键词：野生草莓；核型；进化顺序；

Keywords:wild strawberry, karyotype, evolution order,

摘 要 ：以五叶草莓等6种野生草莓为试材，采用常规压片法对其进行了核型分析。结果表明，6种野生草莓的核型公式分别为：五叶草莓2n=2x=14=12m+2sm、黄毛草莓2n=2x=14=8m+6sm、绿色草莓2n=2x=14=10m+2sm+2st、东北草莓2n=2x=14=8m+6sm、森林草莓2n=2x=14=6m+8sm、西南草莓2n=4x=28=16m+12sm，6种野生草莓的核型类型均为“2A”型。供试6种野生草莓的进化顺序可能为:五叶草莓、绿色草莓、东北草莓、黄毛草莓、西南草莓、森林草莓。

Abstract:In this study,the karyotypes of six wild strawberry species were studied by traditional squash technique.The results showed that the karyotype formula of these six wild strawberries were as follows:Fragaria pentaphylla was 2n=2x=14=12m+2sm,F.nilgerrensis was 2n=2x=14=8m+6sm,F.viridis was 2n=2x=14=10m+2sm+2st,F.mandschurica was 2n=2x=14=8m+6sm,F.vesca was 2n=2x=14=6m+8sm,F.moupinensis was 2n=4x=28=16m+12sm;The karyotypes of all the six species were the type of 2A.The evolution order of these six species was probably F.pentaphylla,F.viridis,F.mandschurica,F.nilgerrensis,F.moupinensis and F.vesca.

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