在Marasmius中,双极性兼容性系统的演变
Markus Hiltunen Thorén1,2, Aleksandar Stanojković3, Martin Ryberg4
1Department of Ecology, Environment and Plant Sciences, Stockholm University, Svante Arrhenius v. 20 A, Stockholm SE-114 18, Sweden.
Mycologia
|December 11, 2024
概括
在真菌中,性相容性从四极系统演变为双极系统. 在马拉斯米乌斯 (Marasmius) 中,这种过渡可能发生了一次,与未连接的基因保持对交配身份的多样性.
科学领域:
- 菌类学 菌类学是指菌类学.
- 进化生物学 进化生物学
- 遗传学 是一个遗传学.
背景情况:
- 贝西迪奥米科塔的性相容性取决于一个或两个位置 (HD和P/R).
- 双极性交配系统可以由位点连接或失去了交配类型的确定产生.
- 祖先的巴西迪奥米塞特交配系统被认为是四极的,有记录过渡到双极性.
研究的目的:
- 研究马拉斯米斯属双极交配系统的进化起源.
- 确定马拉斯米乌斯 (Marasmius) 中双极性演变的模式.
- 分析马拉斯米乌斯 (Marasmius) 中交配型位点的基因组结构和核酸多样性.
主要方法:
- 用连接的多位元序列数据进行了家族遗传学分析.
- 对Marasmius oreades的基因组数据分析.
- 在HD和P/R位点的核酸多样性的比较.
主要成果:
- 遗传学分析支持一个单一的进化过渡到双极交配在Marasmius.
- 在Marasmius. bipolarity的演变过程中,HD和P/R位点仍然没有联系.
- 疾病发病部位表现出高核酸多样性,表明其在维持性认同方面的作用.
结论:
- 马拉斯米乌斯的双极交配系统可能曾经从四极祖先进化过.
- 马拉斯米乌斯 (Marasmius) 的双极性转变涉及无关联的交配类型位置.
- 在双极Marasmius物种中,HD位点在确定性相容性方面发挥着至关重要的作用.
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