微卫星标记器辅助的逆交繁殖用于改善小麦盐耐受性,使用Kharchia 65
Kritika Sharma1, Shikha Yashveer2, Vikram Singh3
1Department of Molecular Biology, Biotechnology and Bioinformatics, COBS&H, CCS Haryana Agricultural University, Hisar, India.
BMC genomics
|June 2, 2024
概括
这项研究研究了小麦几代人的盐耐受性,确定了遗传变异,并证实了盐耐受性的关键位置. 六种选定的植物提供了有价值的遗传物质,可以改善耐盐的小麦品种.
科学领域:
- 植物科学 植物科学
- 遗传学 是一个遗传学.
- 农业学是一种农业学.
背景情况:
- 度造成显著的非生物压力,影响植物从发芽到成熟的发展.
- 了解植物对盐度的反应对于农业的可持续性至关重要.
研究的目的:
- 确定由WH1105 × Kharchia 65交叉衍生的小麦世代 (BC1F2,BC2F1,F3) 的形态生理和遗传变异.
- 识别与盐耐受性相关的遗传标记和关系.
主要方法:
- 用标记器辅助选择来确认Nax1和Nax2位点的存在.
- 24个多态SSR标记被用于评估遗传关系.
- 集群分析和主要组件分析 (PCA) 用于人口差异化.
主要成果:
- 盐应力显著降低了BC1F2和F3种子的发芽率.
- 对各种特征进行了相关性,遗传性,PCV和GCV测量.
- 已确认有29个植物具有Nax1和Nax2位点.
结论:
- WH 1105和Kharchia 65表现出不同的遗传特征,正如集群分析和PCA所示.
- 六种被选中的植物与常见的母体WH1105密切相关,被确定为有价值的遗传资源.
- 这些选定的植物可以有助于开发更好的耐盐小麦品种.
更多相关视频
06:35Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
Published on: April 17, 2015
9.0K
08:36Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis
Published on: July 16, 2019
11.6K
相关概念视频
01:59Plant Breeding and Biotechnology
18.9K
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.
18.9K
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