普通小麦单体遗传——n-1配子传递率的研究  

Monosomic Inheritance of Common Wheat ——Research on Transmission Rate of Gamete n1

作　　者：杨淑琴[1] 刘美杰[2] 李冬 

机构地区：[1]宁夏农学院农学系 [2]宁夏农业学校 [3]宁夏农科院作物所

出　　处：《宁夏农林科技》1997年第5期13-14,共2页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：本试验是用正常双倍体小麦品种永良４号与中国春小麦的２１个单体进行正反杂交，测定ｎ配子和ｎ－１配子的传递率。结果表明，在能够参与受精的花粉中，ｎ花粉占９５．１％，ｎ－１花粉占４．９％；在能够参与受精的胚囊中，ｎ胚囊占２８．８％，ｎ－１胚囊占７１．２％。表明单体自交子代群体内单体约占６９％，其它（双体、缺体）约占３１％。仅就单体和双体来说，比例是３∶１。This test hybridized common diploid Yongliang No.4 with 21 different monosomics of “China spring” wheat to determine the rate of gamete n and gamete n1.The result indicates that among the pollen that were able to be fertilized,the pollen n account for 94.9%,the pollen n1 account for 5.1%;Among the embryo sac which were able to be fertilized,the embryo n account for 28.8% only,and embryo n1 accont for 71.2%.It demonstrates that among the monosonic generations of selfpollination,monosomic account for 69%,the others (disomic and nullisomic)account for about 31%.The proportion of monosomic and disomic is 3:1.

关 键 词：普通小麦 单体 遗传 小麦 

分 类 号：S512.103.2[农业科学—作物学]