比较分析表明，在扩展物种复合体中重组率较低的基因组区域，谱系分选水平较高。
Comparative analysis shows high level of lineage sorting in genomic regions with low recombination in the extended species complex.
作者信息
Zhu Hui, Lei Weixiao, Lai Qing, Sun Yongshuai, Ru Dafu
机构信息
State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
Xi'an Center for Disease Control and Prevention, Xi'an 710068, China.
出版信息
Plant Divers. 2024 Apr 10;46(4):547-550. doi: 10.1016/j.pld.2024.04.004. eCollection 2024 Jul.
•Phylogenomic analysis uncovers widespread discordance in the extended complex.•Introgression (54.99%) and incomplete lineage sorting (ILS; 33.12%) are key drivers of this incongruity.•Recombination rates shape ILS and introgression, with high rates correlating with elevated levels.•Genes linked to abiotic stress responses exhibit significant introgression and ILS, suggesting adaptive evolution.•Lower recombination rates improve accuracy in species relationships.
•系统发育基因组学分析揭示了扩展复合体中广泛存在的不一致性。
•基因渗入（54.99%）和不完全谱系分选（ILS；33.12%）是这种不一致性的关键驱动因素。
•重组率塑造了ILS和基因渗入，高重组率与更高水平相关。
•与非生物胁迫反应相关的基因表现出显著的基因渗入和ILS，表明存在适应性进化。
•较低的重组率提高了物种关系的准确性。
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