野生二粒小麦-普通小麦渐渗系Zn代谢特性
首发时间:2016-06-21
摘要:为了解野生二粒小麦的锌(Zn)富集特性向普通小麦的转移潜能,以高产的推广小麦品种川农16 为母本,与富Zn的野生二粒小麦为父本进行远缘杂交的自交稳定世代(2n=42)F9的29个株系为供试材料,并以普通小麦亲本川农16和野生二粒小麦,推广优质强筋小麦品种蜀麦482和西农979,以及高产小麦品种川麦42和绵麦37为对照,对与Zn代谢特性相关的色氨酸合成酶活性和碳酸酐酶活性进行研究。结果表明,株系号为67-2、174-6、178-6、71-3、64-5、107-1、160-6、63-4、170-6、7-40的Zn代谢活性较强,尤以碳酸酐酶活性最突出,其中64-5、67-2表现为色氨酸合成酶活性和碳酸酐酶活性都较强。由此可见,野生二粒小麦优异的Zn代谢等特性能有效的整合到高产的栽培六倍体小麦中,拓宽了栽培小麦Zn代谢特性的遗传多样性,为小麦Zn生物强化育种奠定了良好的物质基础。
For information in English, please click here
Zinc metabolism characteristics of introgression lines derived from wild emmer and common wheat
Abstract:To understand the the potential of rich Zn of wild emmer (Triticum dicoccoides, AABB, 2n=4x=28) transferred into common wheat (T. aestivum, AABBDD, 2n=6x=42), the common wheat cultivar Chuannong16 (CN16) as female was crossed by wild emmer with rich high Zn concentration. In the present study, a total 29 lines of the F9 generation were used to test both the tryptophan synthase and carbonic anhydrase, and the common wheat cv. Shumai 482, Xinong979 with strong gluten properties, and Chuanmai42 and Mianmai37 with high yields were used as controls. The results showed that the lines like 67-2, 174-6, 178-6, 71-3, 64-5, 107-1, 160-6, 63-4, 170-6, 7-40 had significant high enzyme activities, especially the carbonic anhydrase. It is obvious that the excellent features of zinc metabolism of wild emmer could effectively transfer into hexaploid common wheat cultivar with the high yield traits. It is of importance to broaden the genetic diversity of wheat, and provide good material for genetic breeding of wheat Zn biofortification.
Keywords: Triticum dicoccoides distant hybridization tryptophan synthase carbonic anhydrase
论文图表:
引用
No.4696881112790714****
同行评议
共计0人参与
勘误表
野生二粒小麦-普通小麦渐渗系Zn代谢特性
评论
全部评论0/1000