韩国两种虫,Asplenium incisum和Asplenium ruprechtii之间的动态杂交
Hyoung Tae Kim1, Sang Hee Park2, Jung Sung Kim2
1Department of Ecological and Environmental System, Kyungpook National University, Sangju, Republic of Korea.
Frontiers in plant science
|July 21, 2023
概括
在Asplenium中的自然杂交会产生新的物种,如A. castaneoviride. 这项研究澄清了这些杂交的亲属关系和起源,揭示了A. ruprechtii作为母系亲属和独立的多化事件.
科学领域:
- 植物学 植物学
- 植物遗传学 植物遗传学
- 进化生物学 进化生物学
背景情况:
- 在Asplenium incisum和A. ruprechtii之间进行的自然杂交导致了全类A. castaneoviride.
- 精确的杂交过程和A.castaneoviride的起源仍然不清楚.
- 复杂杂杂的杂交物A.bimixtum的系统放置尚未解决,因为它与A.castaneoviride相似.
研究的目的:
- 研究Asplenium ruprechtii和Asplenium incisum之间的杂交动态.
- 确定 A. castaneoviride 在韩国的起源是否独立于无菌杂交.
- 澄清分类学认同和识别A. bimixtum. 的可靠性.
主要方法:
- 核基因 (pgiC) 测序以识别基因型和性水平.
- 塑性DNA (rbcL) 分析,以追踪母亲的血统.
- 塑体序列的比较分析,包括大删除和ENRIFO区域的识别.
主要成果:
- 鉴定出了三种基因型 (A. incisum,A. ruprechtii和它们的杂交型),最终产生了六种类型.
- 所有杂交物都表现出基于塑性DNA的A. ruprechtii母系血统.
- 在各种杂交物中观察到rpoC2-rps2的显著删除,这表明A. castaneoviride的独立起源.
结论:
- 在A. ruprechtii和A. incisum之间的杂交是单向的,A. ruprechtii作为母系亲属.
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- 这项研究确定了Asplenium属内的器官 (ENRIFO) 中一个扩大的非编码区域.
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