摘 要 ：以二倍体栽培棉种草棉(Gossypium herbaceumL.)3个品种和亚洲棉(G.arboreum L.)6个品种,以及1个亚洲棉与草棉种间杂种 F_1为材料,进行核型分析。结果表明,草棉和亚洲棉在核型上基本相似,其主要差异是草棉具有2对 st 染色体,而亚洲棉中没有;虽然2个棉种的核型类别都属于2A 型,但草棉的核型比亚洲棉更对称,属于较原始的类型。来
Abstract:Karyotype analysis of cultivated diploid cotton species was conducted by using 3varieties of Gossypium herbaceum L.,6 varieties of G.arboreum L.and 1 interspecifichybrid F_1 between the two species.The result showed that the karyotype of G.herbaceum was fundamentally similar to that of G.arboreum.Th