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通过核DNA上的微卫星标记来解读遗传多样性的原生和Allium物种的组合

Talamarla Yeswanth Mahidar Gowd^1,2, Chandra Deo¹, Dalasanuru Chandregowda Manjunathagowda^2,3

¹Department of Vegetable Science, College of Horticulture and Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh, India.

|June 7, 2024

概括

使用SSR标记物分析了Allium物种中的遗传多样性. 这项研究澄清了种群结构,有助于开发用于农业的改良种类.

科学领域:

遗传学是一个遗传学.
植物育种植物育种
生物信息学是一种生物信息学.

背景情况:

*Allium*属包括各种种植作物 (洋,大) 和被用作次要蔬菜的野生物种.
野生*Allium*物种是改善作物的关键遗传资源,特别是对于抗压能力.
了解Allium的遗传多样性和种群结构对于有效的育种计划至关重要.

研究的目的:

为了研究一个多样化的集合 *Allium* 加入的基因分歧和人口结构.
评估SSR标志物的实用性,以鉴定Allium*中的遗传变异.
为在育种计划中利用未充分利用的*Allium*物种提供见解.

主要方法:

19个SSR标记被用于分析95个*Allium*加入,包括物种,品种和杂交.
评估了多态位点,PIC值和标记物的交叉可转移性.
进行了聚类和人口结构分析 (例如,确定最佳K值).

主要成果:

确定了92个多态位点,平均每个SSR标志物有4.84个位点.
PIC值表明显著的遗传变异,范围从0.24到0.98.
基因型分为四个主要组 (A,B,C,D) 和13个子组,人口结构分析证实了四个不同的遗传组.

结论:

SSR标志物有效地揭示了Allium*属内的遗传复杂性和多样性.
确定的人口结构为明智的育种策略提供了基础.
这项研究支持使用来自*Allium*物种的遗传资源来开发精英作物品种.

关键词:

(Allium) 是一种.多样性多样性多样性多样性分子标记物分子标记物人口结构人口结构这是SSR的SSR.野生物种野生物种

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