首页|Angiosperm-wide analysis of fruit and ovary evolution aided by a new nuclear phylogeny supports association of the same ovary type with both dry and fleshy fruits

Angiosperm-wide analysis of fruit and ovary evolution aided by a new nuclear phylogeny supports association of the same ovary type with both dry and fleshy fruits

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Fruit functions in seed protection and dispersal and belongs to many dry and fleshy types,yet their evolutionary pattern remains unclear in part due to uncertainties in the phylogenetic relationships among several orders and fami-lies.Thus we used nuclear genes of 502 an-giosperm species representing 231 families to reconstruct a well supported phylogeny,with resolved relationships for orders and families with previously uncertain placements.Using this phylogeny as a framework,molecular dating supports a Triassic origin of the crown angiosperms,followed by the emergence of most orders in the Jurassic and Cretaceous and their rise to ecological dominance during the Cretaceous Terrestrial Revolution.The ro-bust phylogeny allowed an examination of the evolutionary pattern of fruit and ovary types,revealing a trend of parallel carpel fusions during early diversifications in eudicots,mon-ocots,and magnoliids.Moreover,taxa in the same order or family with the same ovary type can develop either dry or fleshy fruits with strong correlations between specific types of dry and fleshy fruits;such associations of ovary,dry and fleshy fruits define several ovary-fruit"modules"each found in multiple families.One of the frequent modules has an ovary containing multiple ovules,capsules and ber-ries,and another with an ovary having one or two ovules,achenes(or other single-seeded dry fruits)and drupes.This new perspective of re-lationships among fruit types highlights the closeness of specific dry and fleshy fruit types,such as capsule and berry,that develop from the same ovary type and belong to the same module relative to dry and fleshy fruits of other modules(such as achenes and drupes).Further analyses of gene families containing known genes for ovary and fruit de-velopment identified phylogenetic nodes with multiple gene duplications,supporting a pos-sible role of whole-genome duplications,in combination with climate changes and animal behaviors,in angiosperm fruit and ovary diversification.

angiospermfruit evolutionMADS-boxmolecular clocknuclear phylogenyovary and fruit developmental genes

Yezi Xiang、Taikui Zhang、Yiyong Zhao、Hongjin Dong、Hongyi Chen、Yi Hu、Chien-Hsun Huang、Jun Xiang、Hong Ma

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State Key Laboratory of Genetic Engineering,Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering,Institute of Plant Biology,Center of Evolutionary Biology,School of Life Sciences,Fudan University,Shanghai 200438,China

Department of Biology,Howard Hughes Medical Institute,Duke University,Durham,NC 27708,USA

Department of Biology,the Eberly College of Science,and the Huck Institutes of the Life Sciences,the Pennsylvania State University,University Park,PA 16802,USA

Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization,College of Biology and Agricultural Resources,Huanggang Normal University,Huanggang 438000,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina Postdoctoral Science FoundationMinistry of Education Key Laboratory of Biodiversity Science and Ecological Engineering and State Key Laboratory of Genetic National Top Talent Undergraduate Training Program for outstanding undergraduates and the Wangdao Program for undergraduate Eberly College of Science(Department of Biology)Huck Institutes for the Life Sciences at the Pennsylvania State University

3167020931770242319702242019M661344

2024

10.1111/jipb.13618

植物学报(英文版)
中国植物学会

植物学报(英文版)

CSTPCD
影响因子：0.921
ISSN：1672-9072
年,卷(期)：2024.66(2)
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