Phylogeny and evolution of Asparagaceae subfamily Nolinoideae: new insights from plastid phylogenomics

doi:10.1093/aob/mcac144

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	Phylogeny and evolution of Asparagaceae subfamily Nolinoideae: new insights from plastid phylogenomics
	Ji, Yunheng; Landis, Jacob B.; Yang, Jin; Wang, Shuying; Zhou, Nian; Luo, Yan; Liu, Haiyang
	2022
发表期刊	ANNALS OF BOTANY
摘要	Background and aims Asparagaceae subfamily Nolinoideae is an economically important plant group, but the deep relationships and evolutionary history of the lineage remain poorly understood. Based on a large data set including 37 newly sequenced samples and publicly available plastomes, this study aims to better resolve the inter-tribal relationships of Nolinoideae, and to rigorously examine the tribe-level monophyly of Convallarieae, Ophiopogoneae and Polygonateae. Methods Maximum likelihood (ML) and Bayesian inference (BI) methods were used to infer phylogenetic relationships of Nolinoideae at the genus level and above. The diversification history of Nolinoideae was explored using molecular dating. Key results Both ML and BI analyses identically recovered five clades within Nolinoideae, respectively corresponding to Dracaeneae + Rusceae, Polygonateae + Theropogon, Ophiopogoneae, Nolineae, and Convallarieae excluding Theropogon, and most deep nodes were well supported. As Theropogon was embedded in Polygonateae, the plastome phylogeny failed to resolve Convallarieae and Polygonateae as reciprocally monophyletic. Divergence time estimation showed that the origins of most Nolinoideae genera were dated to the Miocene and Pliocene. The youthfulness of Nolinoideae genera is well represented in the three herbaceous tribes (Convallarieae, Ophiopogoneae and Polygonateae) chiefly distributed in temperate areas of the Northern Hemisphere, as the median stem ages of all 14 genera currently belonging to them were estimated at Conclusions This study recovered a robust backbone phylogeny, providing new insights for better understanding the evolution and classification of Nolinoideae. Compared with the deep relationships recovered by a previous study based on transcriptomic data, our data suggest that ancient hybridization or incomplete lineage sorting may have occurred in the early diversification of Nolinoideae. Our findings will provide important reference for further study of the evolutionary complexity of Nolinoideae using nuclear genomic data. The recent origin of these herbaceous genera currently belonging to Convallarieae, Ophiopogoneae and Polygonateae provides new evidence to support the hypothesis that the global expansion of temperate habitats caused by the climate cooling over the past 15 million years may have dramatically driven lineage diversification and speciation in the Northern Hemisphere temperate flora.
关键词	Ancient hybridization Convallarieae incomplete lineage sorting plastome phylogeny Polygonateae Theropogon RUSCACEAE SENSU-LATO CHROMOSOME EVOLUTION DIVERSIFICATION FAMILIES GENES CLASSIFICATION COMBINATIONS ANGIOSPERMS RESOLVES PLATFORM
DOI	10.1093/aob/mcac144
收录类别	SCI
WOS记录号	WOS:000905249200001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/74680
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Ji, Yunheng,Landis, Jacob B.,Yang, Jin,et al. Phylogeny and evolution of Asparagaceae subfamily Nolinoideae: new insights from plastid phylogenomics[J]. ANNALS OF BOTANY,2022.
APA	Ji, Yunheng.,Landis, Jacob B..,Yang, Jin.,Wang, Shuying.,Zhou, Nian.,...&Liu, Haiyang.(2022).Phylogeny and evolution of Asparagaceae subfamily Nolinoideae: new insights from plastid phylogenomics.ANNALS OF BOTANY.
MLA	Ji, Yunheng,et al."Phylogeny and evolution of Asparagaceae subfamily Nolinoideae: new insights from plastid phylogenomics".ANNALS OF BOTANY (2022).

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