用DArTseq标记物对干旱耐受性进行基因剖析的红杉 (Carthamus tinctorius L.) 的全基因组关联映射

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Seyed Mohammad Reza Hassani¹, Sayyed Saeid Pourdad¹, Amir Mohammad Naji²

¹Dryland Agricultural Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Kermanshah, 1164-67145, Iran.

Scientific reports

|December 29, 2024

概括

识别红杉干旱耐受性的遗传标记是培育性作物的关键. 这项研究发现了与干旱耐受性相关的稳定遗传位置,有助于改善品种的标记器辅助选择.

科学领域:

植物遗传学和育种.
农业学是一种农业学.
基因组学就是基因组学.

背景情况:

开发耐旱的红杉 (Carthamus tinctorius L.) 对于粮食安全和可持续农业至关重要.
对干旱耐受性的遗传理解有限,这阻碍了适应性品种的育种努力.

研究的目的:

通过全基因组关联研究 (GWAS) 识别与三花干旱耐受性相关的标记特征关联 (MTA).
在育种计划中发现用于标记器辅助选择 (MAS) 的稳定基因位置.

主要方法:

全基因组关联研究 (GWAS) 使用DArTseq标记物对90种不同的红杉基因型进行了全基因组关联研究.
在雨 (干旱) 和灌条件下的基因型的评估超过三年 (2016-2018).
对种子产量,形态特征,耐压力指数 (STI) 和耐旱系数 (DC) 的分析.

主要成果:

66个MTA被确定为农学特征,其中45个与STI有显著的关联.
在压力和非压力条件下连续检测到12个MTA,表明稳定的位置.
鉴定了与参与非生物应激反应的基因相关的标记物 (例如,生物碳氧酶,胺/氨酸蛋白激酶,指蛋白).

结论:

这项研究提供了关于三花干旱耐受性遗传结构的宝贵见解.
识别出稳定的MTA和候选基因可以通过MAS加速干旱抗性树品种的发展.
基于干旱耐受度指标的基因型聚类显示,与地理来源没有相关性.

关键词:

在DARTSseqq中使用.干旱干旱干旱干旱在GWAS中,GWAS就是GWAS.沙夫花花的花朵是什么意思

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