Evolution of Rosaceae Fruit Types Based on Nuclear Phylogeny in the Context of Geological Times and Genome Duplication
Xiang,Yezi; Huang,Chien-Hsun; Hu,Yi; Wen,Jun; Li,Shisheng; Yi,Tingshuang; Chen,Hongyi; Xiang,Jun; Ma,Hong
2017
Source PublicationMOLECULAR BIOLOGY AND EVOLUTION
ISSN0737-4038
Volume34Issue:2Pages:262-281
AbstractFruits are the defining feature of angiosperms, likely have contributed to angiosperm successes by protecting and dispersing seeds, and provide foods to humans and other animals, with many morphological types and important ecological and agricultural implications. Rosaceae is a family with similar to 3000 species and an extraordinary spectrum of distinct fruits, including fleshy peach, apple, and strawberry prized by their consumers, as well as dry achenetum and follicetum with features facilitating seed dispersal, excellent for studying fruit evolution. To address Rosaceae fruit evolution and other questions, we generated 125 new transcriptomic and genomic datasets and identified hundreds of nuclear genes to reconstruct a well-resolved Rosaceae phylogeny with highly supported monophyly of all subfamilies and tribes. Molecular clock analysis revealed an estimated age of similar to 101.6Ma for crown Rosaceae and divergence times of tribes and genera, providing a geological and climate context for fruit evolution. Phylogenomic analysis yielded strong evidence for numerous whole genome duplications (WGDs), supporting the hypothesis that the apple tribe had a WGD and revealing another one shared by fleshy fruit-bearing members of this tribe, with moderate support for WGDs in the peach tribe and other groups. Ancestral character reconstruction for fruit types supports independent origins of fleshy fruits from dry-fruit ancestors, including the evolution of drupes (e.g., peach) and pomes (e.g., apple) from follicetum, and drupetum (raspberry and blackberry) from achenetum. We propose that WGDs and environmental factors, including animals, contributed to the evolution of the many fruits in Rosaceae, which provide a foundation for understanding fruit evolution.
KeywordNortheastern Washington-state Sequence Data Molecular Phylogenetics British-columbia Divergence Times Prunus Rosaceae Ribosomal Dna Early Eocene Gene Data Polyploidy Coalescence Fruit Evolution Molecular Clock Nuclear Phylogeny Rosaceae Genome Duplication
Subject AreaBiochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
DOI10.1093/molbev/msw242
Indexed BySCI
Language英语
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Cited Times:54[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/54967
Collection植物化学与西部植物资源持续利用国家重点实验室
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GB/T 7714
Xiang,Yezi,Huang,Chien-Hsun,Hu,Yi,et al. Evolution of Rosaceae Fruit Types Based on Nuclear Phylogeny in the Context of Geological Times and Genome Duplication[J]. MOLECULAR BIOLOGY AND EVOLUTION,2017,34(2):262-281.
APA Xiang,Yezi.,Huang,Chien-Hsun.,Hu,Yi.,Wen,Jun.,Li,Shisheng.,...&Ma,Hong.(2017).Evolution of Rosaceae Fruit Types Based on Nuclear Phylogeny in the Context of Geological Times and Genome Duplication.MOLECULAR BIOLOGY AND EVOLUTION,34(2),262-281.
MLA Xiang,Yezi,et al."Evolution of Rosaceae Fruit Types Based on Nuclear Phylogeny in the Context of Geological Times and Genome Duplication".MOLECULAR BIOLOGY AND EVOLUTION 34.2(2017):262-281.
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