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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (16): 8-12.

所属专题： 生物技术； 玉米

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

CIMMYT牧草DNA导入普通玉米后植物学形态变异研究

张兴端,霍仕平,向振凡,张健,晏庆九,余志江,张芳魁,何平,秦世明   

  • 收稿日期:2009-04-09 修回日期:2009-04-23 出版日期:2009-08-20 发布日期:2009-08-20

Study on Botanical Morphology of Combination Material of CIMMYT Forage and Common Maize

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  • Received:2009-04-09 Revised:2009-04-23 Online:2009-08-20 Published:2009-08-20

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摘要： 本研究以CIMMYT牧草和4个普通玉米自交系为遗传交配材料，比较研究了CIMMYT牧草和4个杂交（回交）后代的植物学形态特征及其与普通玉米的差异。结果表明，CIMMYT牧草能将其生长繁茂、分蘖力强、生物产量高的特性遗传给杂交后代，并有较强的世代传递能力；该牧草幼苗、植株及其生长习性、花器官、种子特征等与普通玉米差异明显，其与普通玉米的杂交后代基本保持了它的生长发育特性，但花器官和种子特征更偏向于普通玉米；回交后代除保持了一定的分蘖特性、明显的多穗和返祖现象外，其余特征特性与普通玉米基本没有区别。

关键词: 甘蓝型油菜, 甘蓝型油菜, 温敏雄性不育, 两系杂交种

Abstract: It was studied the botanical morphology difference of CIMMYT forage and hybrid and backcross offspring with hybrid combination of CIMMYT forage and four common maize inbred lines as study material .The result indicated, the CIMMYT forage characteristics of the overgrowth, strong tillerity and high yield could inherit to the offspring ,and the inherit ability was higher. It was obviously difference of seedling, plant, and its grow habit, flower apparatus and seed between CIMMYT forage and common maize. The hybrid offspring of CIMMYT forage and common maize keep the strong trait of growing and development, but the flower and seed character were look like common maize. The backcross offspring were not different to common maize besides with some tillers, distinct multi-ear and atavism.