草业学报2011，Vol.20Issue(3)：205-210,6.
裸仁美洲南瓜种皮性状遗传规律研究
A study on the genetic law of seed coat characters in hull-less Cucurbita pepo
摘要
Abstract
The seed coat trait of Cucurbita pepo was classified into two types, seed-hulled and seed-naked. Experiments were performed to study the inheritance pattern. Three inbreeds with hulled seed, 04FC409-4, 03N122-19 and 04LAg-26-2, and three inbreeds with hull-less seed, 04GD112-7, 1N-275-7 and 04LAg-26-28, were used as the parental lines in the mating patterns 04FC409-4 and 04GD112-7, 03N-122-19 and 1N-275-7, 04LAg26-2 and 04LAg-26-28. In the F1 generations, all the plants were seed-hulled. However, in the F2 generations, segregation of hulled and hull-less seeds showed the ratio of almost 3 to 1. For the backcrosses, all the BC1 and F1 (the inbreed with hulled seed used as recurrent parent) generations appeared seed-hulled. But in the BC2 and F1 (the inbreed with hull-less seed as recurrent parent) generations, segregation of hulled and hull-less seeds showed the ratio of almost 1 to 1. So it was concluded that each of the hulled seed and hull-less seed in C. pepo was controlled by one pair of different nuclear genes and “seed-hulled” was dominant to “seed-hull-less”.关键词
美洲南瓜/种皮性状/遗传Key words
hull-less Cucurbita pepo/ seed coat character/ hereditary分类
农业科技引用本文复制引用
薛应钰,师桂英,徐秉良,陈荣贤..裸仁美洲南瓜种皮性状遗传规律研究[J].草业学报,2011,20(3):205-210,6.基金项目
国家自然科学基金项目(30671267)和甘肃省科技厅中青年基金项目(3YS051-A25-015)资助. （30671267）
