Sun Yao, Zhang Cheng, Peng Jingyi, Zhou Qiang
College of Biology and Environmental Sciences, Jishou University, Jishou, Hunan, China.
The Orchid Conservation & Research Center of Shenzhen and the National Orchid Conservation Center of China, Shenzhen Key Laboratory for Orchid Conservation and Utilization, Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, Shenzhen, Guangdong, China.
Mitochondrial DNA B Resour. 2024 Dec 23;10(1):26-31. doi: 10.1080/23802359.2024.2444605. eCollection 2025.
The genus B. Nordenstam (1978) is a challenging taxonomic group with complex infrageneric relationships. Here, we newly report the plastid genome of S. (Cumm.) C. Jeffrey & Y. L. Chen (1984). Whole genome exhibited a typical quadratic structure with a total size of 151,212 bp and 132 genes. We revealed for the first time that the matK and rpoA were positively selected genes within . Phylogenetic reconstruction based on whole plastid genome sequences indicated that was not clustered into a monophyletic clade with members belonging to the S. group of but rather was closely related to some genera in the subtribe Tussilaginae s.s. of Asteraceae.
诺登斯塔姆属(B. Nordenstam,1978)是一个具有挑战性的分类群,其属下关系复杂。在此,我们首次报道了华蟹甲(S. (Cumm.) C. Jeffrey & Y. L. Chen,1984)的质体基因组。全基因组呈现典型的四边形结构,总大小为151,212 bp,包含132个基因。我们首次揭示了matK和rpoA是华蟹甲属内的正选择基因。基于全质体基因组序列的系统发育重建表明,华蟹甲并未与华蟹甲组(S. group)的成员聚为一个单系类群,而是与菊科款冬亚族(Tussilaginae s.s.)中的一些属密切相关。