来自Aegilops tauschii的定量特征位点qSFWI6D的侵入改善了小麦在幼苗阶段的盐耐受性
Jinhao Han1, Hongyu Ren1, Mengjia Sun1
1National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, China.
概括
盐化威胁到小麦的生产. 研究人员从Aegilops tauschii Y215中发现了一个主要的盐耐受性基因,qSFWI6D,增强了小麦的耐受性.
科学领域:
- 植物遗传学 植物遗传学
- 农作物科学 农作物科学
- 农业生物技术 农业生物技术
背景情况:
- 农田盐化对全球粮食安全构成重大威胁,因为它限制了小麦生产.
- 艾吉洛普斯 (Aegilops tauschii) 是一种有价值的遗传资源,可以改善作物特征.
研究的目的:
- 为了确定提高小麦盐耐受性的遗传资源.
- 绘制与小麦盐耐受性相关的定量特征位置 (QTL).
主要方法:
- 开发了小麦-Ae. 来自Jimai22和Ae. tauschii的入侵线. 图斯基亚 Y215.5 的时间.
- 通过使用55K SNP阵列进行表型和基因型评估盐分耐受性.
- 使用表型数据和2,727个多态SNP绘制了QTL的映射.
主要成果:
- 确定了14个盐耐受度的QTL,包括一个主要的QTL,qSFWI6D,用于新鲜重量.
- 对qSFWI6D有利的等位基因来源于Ae. 图斯基亚 Y215.5 的时间.
- 将精细映射的qSFWI6D映射到内进线 (PT1047) 中的205Mb间隔.
结论:
- Aegilops tauschii拥有宝贵的遗传资源,可以改善小麦的盐耐受性.
- 已识别的QTL,特别是qSFWI6D,可以用于小麦育种计划.
- 这项研究为开发耐盐小麦品种提供了基础.
更多相关视频
09:05Tomato Root Transformation Followed by Inoculation with Ralstonia Solanacearum for Straightforward Genetic Analysis of Bacterial Wilt Disease
Published on: March 11, 2020
11.6K
06:35Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
Published on: April 17, 2015
9.0K
相关概念视频
02:02Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
01:59Plant Breeding and Biotechnology
18.8K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.8K