Nuclear phylogenomics of Asteraceae with increased sampling provides new insights into convergent morphological and molecular evolution

doi:10.1016/j.xplc.2024.100851

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	Nuclear phylogenomics of Asteraceae with increased sampling provides new insights into convergent morphological and molecular evolution
	Zhang, Guojin; Yang, Junbo; Zhang, Caifei; Jiao, Bohan; Panero, Jose L.; Cai, Jie; Zhang, Zhi-Rong; Gao, Lian-Ming; Gao, Tiangang; Ma, Hong
	2024
发表期刊	PLANT COMMUNICATIONS
ISSN	2590-3462
卷号	5 期号:6 页码:100851
摘要	Convergent morphological evolution is widespread in flowering plants, and understanding this phenomenon relies on well -resolved phylogenies. Nuclear phylogenetic reconstruction using transcriptome datasets has been successful in various angiosperm groups, but it is limited to taxa with available fresh materials. Asteraceae, which are one of the two largest angiosperm families and are important for both ecosystems and human livelihood, show multiple examples of convergent evolution. Nuclear Asteraceae phylogenies have resolved relationships among most subfamilies and many tribes, but many phylogenetic and evolutionary questions regarding subtribes and genera remain, owing to limited sampling. Here, we increased the sampling for Asteraceae phylogenetic reconstruction using transcriptomes and genome-skimming datasets and produced nuclear phylogenetic trees with 706 species representing two-thirds of recognized subtribes. Ancestral character reconstruction supports multiple convergent evolutionary events in Asteraceae, with gains and losses of bilateral floral symmetry correlated with diversification of some subfamilies and smaller groups, respectively. Presence of the calyx -related pappus may have been especially important for the success of some subtribes and genera. Molecular evolutionary analyses support the likely contribution of duplications of MADS-box and TCP floral regulatory genes to innovations in floral morphology, including capitulum inflorescences and bilaterally symmetric flowers, potentially promoting the diversification of Asteraceae. Subsequent divergences and reductions in CYC2 gene expression are related to the gain and loss of zygomorphic flowers. This phylogenomic work with greater taxon sampling through inclusion of genome-skimming datasets reveals the feasibility of expanded evolutionary analyses using DNA samples for understanding convergent evolution.
DOI	10.1016/j.xplc.2024.100851
WOS记录号	WOS:001252473000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/76394
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Zhang, Guojin,Yang, Junbo,Zhang, Caifei,et al. Nuclear phylogenomics of Asteraceae with increased sampling provides new insights into convergent morphological and molecular evolution[J]. PLANT COMMUNICATIONS,2024,5(6):100851.
APA	Zhang, Guojin.,Yang, Junbo.,Zhang, Caifei.,Jiao, Bohan.,Panero, Jose L..,...&Ma, Hong.(2024).Nuclear phylogenomics of Asteraceae with increased sampling provides new insights into convergent morphological and molecular evolution.PLANT COMMUNICATIONS,5(6),100851.
MLA	Zhang, Guojin,et al."Nuclear phylogenomics of Asteraceae with increased sampling provides new insights into convergent morphological and molecular evolution".PLANT COMMUNICATIONS 5.6(2024):100851.

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