Evolution in African tropical trees displaying ploidy-habitat association: The genus Afzelia (Leguminosae)

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• 作者：Armel S.L. Donkpegan^a ; ^b ; ^{armeloic@gmail.com} ; ^{sdonkpegan@ulg.ac.be} ; Jean-Louis Doucet^a ; ^c ; ^{jldoucet@ulg.ac.be} ; Jé ; ré ; my Migliore^b ; ^{Jeremy.Migliore@ulb.ac.be} ; Jé ; rô ; me Duminil^b ; ^d ; ^e ; ^{J.Duminil@cgiar.org} ; Kasso Dainou^c ; ^f ; ^g ; ^{kdainou@gmail.com} ; Rosalí ; a Piñ ; eiro^h ; ^{rosalia.pineiro@gmail.com} ; Jan J. Wieringaⁱ ; ^{jan.wieringa@naturalis.nl} ; Dominique Champluvier^j ; ^{champluvier.dominique@telenet.be} ; Olivier J. Hardy^b ; ^{ohardy@ulb.ac.be}
• 关键词：Afzelia ; Leguminosae (Detarioideae) ; Diversification ; Morphometry ; Niche evolution ; Molecular phylogeny ; Polyploidy
• 刊名：Molecular Phylogenetics and Evolution
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：107
• 期：Complete
• 页码：270-281
• 全文大小：1704 K
• 卷排序：107

文摘

In Africa, diploid and tetraploid tree species are found in the Afzelia genus. Genetic and morphological data indicate that only diploid species are well delimited. Afzelia crown age is 14–20 Ma while tetraploids started diversifying 7–9 Ma. Nuclear/plastid incongruence suggests incomplete lineage sorting or hybridisation. Polyploidisation might facilitate dry/rain forests habitat shift in tropical trees.