Manipulation of Chromosomal Segments From Wild Wheat for the Improvement of Bread Wheat

Author:

Appels R,Lagudah ES

Abstract

Specific alien chromatin segments have been used for many years to introduce novel disease resistance genes into bread wheat. The 1RS chromosome segment being used in Australian wheats will be discussed in detail to present the molecular biological studies carried out on this chromosome segment as well as its agronomic contributions to wheat. Studies are also being carried out on the manipulation of the D genome of wheat. Within Australia we have initiated the screening of a collection of 420 accessions of Triticum tauschii (the donor of the D genome) involving groups in the Departments of Agriculture in New South Wales, Victoria, Western Australia and the University of Sydney as well in the Division of Plant Industry. Disease resistance has been sought and found for cereal cyst nematode, Septoria nodorum, Septoria tritici, Puccinia striiformis, P. recondita and P. graminis. At the DNA level the collection has been screened for variation at the 5Sdna and Nor loci, as well as generating Pst (a restriction endonuclease) genomic clones, in preparation for providing RFLP markers for a genetic linkage map. Lines of T. tauschii showing high levels of disease resistance have been crossed directly to Australian wheat cultivars or are being used to form synthetic hexaploids by crossing to tetraploid wheats.

Publisher

CSIRO Publishing

Subject

Plant Science,Agronomy and Crop Science

Cited by 46 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3