在基菌菌中早期的生殖线封存
Markus Hiltunen Thorén1,2, Boel Olsson1, Peter Jan Vonk1
1Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden.
概括
在Marasmius oreades真菌中,胚胎细胞 (子生成细胞) 在体的早期发育阶段分离. 与无菌组织相比,这种早期分离导致胚胎线的突变较少.
科学领域:
- 进化生物学
- 遗传学
- 菌群学
背景情况:
- 新突变的继承取决于性生物的生殖时间.
- 通常认为真菌有晚期的生殖分离.
研究的目的:
- 为了研究仙女戒指真菌Marasmius oreades的生殖时间.
- 挑战菌中晚期生殖系分离的假设.
主要方法:
- 在过去的7年里收集了马拉斯米乌斯.
- 在不同组织上进行全基因组测序.
- 在肥沃和无菌组织中识别和比较新的突变.
主要成果:
- 肥沃和无菌的组织累积了不同的突变.
- 在肥沃的组织中发现的细菌系比无菌组织更少的突变.
- 表明细菌系的突变率较低.
结论:
- 在Marasmius oreades中,胚胎的生殖线在真菌体的早期被定义.
- 在多细胞生物中,早期的生殖系隔离可能比以前想象的更常见.
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