摘要
本文报道了山野豌豆复合种的核型。山野豌豆V.amoena 2n=24=10m+10sm+4st;狭叶山野豌豆V.amoena var.oblongifolia 2n=12=2m+8sm+2st;绢毛山野豌豆V.amoena var.sericea 2n=12=2m+8sm+2st。核型分析表明四倍体细胞型是一个异源多倍体,二个二倍体细胞型具有相似的核型,支持将这三个细胞型处理为种内关系。文章最后依据核型、形态和地理分布提出了这三个细胞型的进化关系。
In the present paper the karyotype of Vicia amoena complex were analys-ed. The results are showed as follow: Karyotype formula of V. amoena is2n = 24 = 10m + 10sm + 4st; one of V.amoena var. oblongifolia is 2n = 12 = 2m + 8sm+ 2?; one of V.amoena var. sericea is 2n = 12 = 2m + 8sm + 2st. Karyotype ana-lysis show tetraploid cytotype is a allotetraploid, and two diploid cytotypesare quite similar to each other. The karyotype evidence supports a treatm-ent to infraspecific relationship of three the studied taxons. According tokaryotype, leaf morphology and distribution, authors suggest possible evol-ution relationship of three taxons.
出处
《植物研究》
CAS
CSCD
北大核心
1991年第4期75-80,共6页
Bulletin of Botanical Research
基金
国家自然科学基金
