Re-Evaluation of Phylogenetic Relationships among Species of the Mangrove Genus Avicennia from Indo-West Pacific Based on Multilocus Analyses

被引：21

作者：

Li, Xinnian ^{[1
,2
]}

Duke, Norman C. ^{[3
]}

Yang, Yuchen ^{[1
,2
]}

Huang, Lishi ^{[1
,2
]}

Zhu, Yuxiang ^{[1
,2
]}

Zhang, Zhang ^{[1
,2
]}

Zhou, Renchao ^{[1
,2
]}

Zhong, Cairong ^{[4
]}

Huang, Yelin ^{[1
,2
]}

Shi, Suhua ^{[1
,2
]}

机构：

[1] Sun Yat Sen Univ, State Key Lab Biocontrol, Guangzhou, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Guangdong Key Lab Plant Resources, Guangzhou, Guangdong, Peoples R China

[3] James Cook Univ, Trop WATER, Townsville, Qld, Australia

[4] Hainan Dongzhai Harbor Natl Nat Reserve, Haikou, Hainan, Peoples R China

来源：

PLOS ONE | 2016年 / 11卷 / 10期

基金：

中国国家自然科学基金;

关键词：

GENETIC DIVERSITY; EVOLUTION; CHLOROPLAST; INTERFERENCE; ACANTHACEAE; HOTSPOTS;

D O I：

10.1371/journal.pone.0164453

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Avicennia L. (Avicenniaceae), one of the most diverse mangrove genera, is distributed widely in tropical and subtropical intertidal zones worldwide. Five species of Avicennia in the Indo-West Pacific region have been previously described. However, their phylogenetic relationships were determined based on morphological and allozyme data. To enhance our understanding of evolutionary patterns in the clade, we carried out a molecular phylogenetic study using wide sampling and multiple loci. Our results support two monophyletic clades across all species worldwide in Avicennia: an Atlantic-East Pacific (AEP) lineage and an Indo-West Pacific (IWP) lineage. This split is in line with biogeographic distribution of the clade. Focusing on the IWP branch, we reconstructed a detailed phylogenetic tree based on sequences from 25 nuclear genes. The results identified three distinct subclades, (1) A. rumphiana and A. alba, (2) A. officinalis and A. integra, and (3) the A. marina complex, with high bootstrap support. The results strongly corresponded to two morphological traits in floral structure: stigma position in relation to the anthers and style length. Using Bayesian dating methods we estimated diversification of the IWP lineage was dated to late Miocene (c. 6.0 million years ago) and may have been driven largely by the fluctuating sea levels since that time.

引用

页数：14

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