Deep reticulation: the long legacy of hybridization in vascular plant evolution

doi:10.1111/tpj.16142

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	Deep reticulation: the long legacy of hybridization in vascular plant evolution
	Stull,Gregory W.; Pham,Kasey K.; Soltis,Pamela S.; Soltis,Douglas E.
	2023
发表期刊	PLANT JOURNAL
ISSN	1365-313X
卷号	114 期号:4 页码:743-766
摘要	Hybridization has long been recognized as a fundamental evolutionary process in plants but, until recently, our understanding of its phylogenetic distribution and biological significance across deep evolutionary scales has been largely obscure. Over the past decade, genomic and phylogenomic datasets have revealed, perhaps not surprisingly, that hybridization, often associated with polyploidy, has been common throughout the evolutionary history of plants, particularly in various lineages of flowering plants. However, phylogenomic studies have also highlighted the challenges of disentangling signals of ancient hybridization from other sources of genomic conflict (in particular, incomplete lineage sorting). Here, we provide a critical review of ancient hybridization in vascular plants, outlining well-documented cases of ancient hybridization across plant phylogeny, as well as the challenges unique to documenting ancient versus recent hybridization. We provide a definition for ancient hybridization, which, to our knowledge, has not been explicitly attempted before. Further documenting the extent of deep reticulation in plants should remain an important research focus, especially because published examples likely represent the tip of the iceberg in terms of the total extent of ancient hybridization. However, future research should increasingly explore the macroevolutionary significance of this process, in terms of its impact on evolutionary trajectories (e.g. how does hybridization influence trait evolution or the generation of biodiversity over long time scales?), as well as how life history and ecological factors shape, or have shaped, the frequency of hybridization across geologic time and plant phylogeny. Finally, we consider the implications of ubiquitous ancient hybridization for how we conceptualize, analyze, and classify plant phylogeny. Networks, as opposed to bifurcating trees, represent more accurate representations of evolutionary history in many cases, although our ability to infer, visualize, and use networks for comparative analyses is highly limited. Developing improved methods for the generation, visualization, and use of networks represents a critical future direction for plant biology. Current classification systems also do not generally allow for the recognition of reticulate lineages, and our classifications themselves are largely based on evidence from the chloroplast genome. Updating plant classification to better reflect nuclear phylogenies, as well as considering whether and how to recognize hybridization in classification systems, will represent an important challenge for the plant systematics community.
关键词	ancient hybridization gene flow phylogenomics polyploidy reticulation vascular plants CHLOROPLAST DNA GENE FLOW HYBRID SPECIATION ANGIOSPERM DIVERSIFICATION NATURAL HYBRIDIZATION PHYLOGENETIC ANALYSES SEED PLANTS WHITE OAKS SCALE DATA POLYPLOIDY
学科领域	Plant Sciences
DOI	10.1111/tpj.16142
收录类别	SCI
WOS记录号	WOS:000971464000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75248
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Stull,Gregory W.,Pham,Kasey K.,Soltis,Pamela S.,et al. Deep reticulation: the long legacy of hybridization in vascular plant evolution[J]. PLANT JOURNAL,2023,114(4):743-766.
APA	Stull,Gregory W.,Pham,Kasey K.,Soltis,Pamela S.,&Soltis,Douglas E..(2023).Deep reticulation: the long legacy of hybridization in vascular plant evolution.PLANT JOURNAL,114(4),743-766.
MLA	Stull,Gregory W.,et al."Deep reticulation: the long legacy of hybridization in vascular plant evolution".PLANT JOURNAL 114.4(2023):743-766.

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