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用SDS聚丙烯酰胺凝胶电泳(SDS-PAGE)法对棉属23个野生种及4个栽培种的10个品种进行了种子水溶性蛋白质分析。结果表明,种内的蛋白质电泳图谱基本一致,各染色体组则具有其特征的蛋白质图谱模式。B染色体组最接近棉属二倍休原始祖先。A染色体组及D染色体组的部分种起源于B染色体组。G.arboreum race sinense可能起源于G.herbaceum raced africanum。D染色体组具有两种不同的图谱模式,即D_β和D_ε模式,但D与B染色体组更接近。AD染色体组的(AD)_1,(AD)_2及(AD)_5图谱相似,推测它们具有共同的祖先,起源于A和D_β组的种间杂种的染色体加倍。G.australe和G.nelsonii具有同G.sturtianum和G.robinsonii相近的蛋白质图谱模式,其亲缘关系较近。
Seeds water-soluble protein analysis was performed on 10 varieties of 23 wild species and 4 cultivars of Gossypii by SDS polyacrylamide gel electrophoresis (SDS-PAGE). The results showed that the electrophoretic patterns of the proteins in the species were basically the same, and each chromosome group had its characteristic protein pattern. B chromosome group closest to Gossypium twice as long as the original ancestor. A group of chromosomes and D genome group of some species originated in the B genome. G.arboreum race sinense may originate from G. herbaceum raced africanum. The D genome has two distinct patterns, D_β and D_ε, but D is closer to the B genome. The (AD) _1, (AD) _2 and (AD) _5 maps of the AD genome were similar, suggesting that they share a common ancestor and double the chromosome originating from interspecific hybrids in the A and D_β groups. G.australe and G.nelsonii have a similar pattern of protein patterns to G.sturtianum and G.robinsonii, with close genetic relationships.