Comparative and phylogenetic analyses of Loranthaceae plastomes provide insights into the evolutionary trajectories of plastome degradation in hemiparasitic plants

doi:10.1186/s12870-024-05094-5

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	Comparative and phylogenetic analyses of Loranthaceae plastomes provide insights into the evolutionary trajectories of plastome degradation in hemiparasitic plants
	Tang, Lilei; Wang, Tinglu; Hou, Luxiao; Zhang, Guangfei; Deng, Min; Guo, Xiaorong; Ji, Yunheng
	2024
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	24 期号:1 页码:406
摘要	Background The lifestyle transition from autotrophy to heterotrophy often leads to extensive degradation of plastomes in parasitic plants, while the evolutionary trajectories of plastome degradation associated with parasitism in hemiparasitic plants remain poorly understood. In this study, phylogeny-oriented comparative analyses were conducted to investigate whether obligate Loranthaceae stem-parasites experienced higher degrees of plastome degradation than closely related facultative root-parasites and to explore the potential evolutionary events that triggered the 'domino effect' in plastome degradation of hemiparasitic plants.Results Through phylogeny-oriented comparative analyses, the results indicate that Loranthaceae hemiparasites have undergone varying degrees of plastome degradation as they evolved towards a heterotrophic lifestyle. Compared to closely related facultative root-parasites, all obligate stem-parasites exhibited an elevated degree plastome degradation, characterized by increased downsizing, gene loss, and pseudogenization, thereby providing empirical evidence supporting the theoretical expectation that evolution from facultative parasitism to obligate parasitism may result in a higher degree of plastome degradation in hemiparasites. Along with infra-familial divergence in Loranthaceae, several lineage-specific gene loss/pseudogenization events occurred at deep nodes, whereas further independent gene loss/pseudogenization events were observed in shallow branches.Conclusions The findings suggest that in addition to the increasing levels of nutritional reliance on host plants, cladogenesis can be considered as another pivotal evolutionary event triggering the 'domino effect' in plastome degradation of hemiparasitic plants. These findings provide new insights into the evolutionary trajectory of plastome degradation in hemiparasitic plants.
DOI	10.1186/s12870-024-05094-5
WOS记录号	WOS:001224142700003
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/76334
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Tang, Lilei,Wang, Tinglu,Hou, Luxiao,et al. Comparative and phylogenetic analyses of Loranthaceae plastomes provide insights into the evolutionary trajectories of plastome degradation in hemiparasitic plants[J]. BMC PLANT BIOLOGY,2024,24(1):406.
APA	Tang, Lilei.,Wang, Tinglu.,Hou, Luxiao.,Zhang, Guangfei.,Deng, Min.,...&Ji, Yunheng.(2024).Comparative and phylogenetic analyses of Loranthaceae plastomes provide insights into the evolutionary trajectories of plastome degradation in hemiparasitic plants.BMC PLANT BIOLOGY,24(1),406.
MLA	Tang, Lilei,et al."Comparative and phylogenetic analyses of Loranthaceae plastomes provide insights into the evolutionary trajectories of plastome degradation in hemiparasitic plants".BMC PLANT BIOLOGY 24.1(2024):406.

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