棉花四元杂种[(亚×比)×(陆×夏)]F_1的性状遗传及细胞学研究  

A Study on Characteristic Inheritance and Cytology of a Quardrispecific Hybrid F 1 in Gossypium

作　　者：孙黛珍[1] 王曙光[1] 李炳林[1] 

机构地区：[1]山西农业大学农学院,山西太谷030801

出　　处：《山西农业科学》2001年第1期23-26,共4页Journal of Shanxi Agricultural Sciences

摘　　要：对棉属A ,D ,G 3个染色体组合成的四元杂种 [(亚×比 )× (陆×夏 ) ]F1的植物形态性状和花粉母细胞减数分裂染色体行为进行了观察。结果表明 ,杂种F1变化最大的是花器 ,遗传了比克氏棉的红花基部有紫红大斑的性状 ;减数分裂染色体的构型为 2n =52 =35.62Ⅰ +6.13Ⅱ +0 .38Ⅲ+0 .12Ⅳ ,并且染色体在后期Ⅰ向两极分开的时候 ,出现了染色体“桥’The morphological characters and the meiosic chromosome behavior of pollen mother cells of the quardrispecific hybrid[( Gossypium arboreum×G bickii)×(G bickii)×(G hirsutum×G tomentosum)] were studied. In morphological characters, the flower of hybrid F 1 inherited pink flower traits with purplish red from G bickii. Chromosome configuration at metaphase 1 was 35.62Ⅰ+6.13Ⅱ+0.38Ⅲ+0.12Ⅳ. In anaphase 1, chromosome bridge appeared.

关 键 词：棉属 四元杂种 细胞学 形态性状 遗传变异 花粉母细胞 减数分裂 染色体行为 

分 类 号：S562.032[农业科学—作物学]