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Congruent species delimitation of two controversial gold-thread nanmu tree species based on morphological and restriction site-associated DNA sequencing data
Ding, Xin1; Xiao, Jian Hua1; Li, Lang; Conran, John G.; Li, Jie
2019
Source PublicationJOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
Volume57Issue:xPages:234-246
Abstract

Species delimitation is fundamental to conservation and sustainable use of economically important forest tree species. However, the delimitation of two highly valued gold-thread nanmu species (Phoebe bournei (Hemsl.) Yang and P. zhennan S. K. Lee & F. N. Wei) has been confusing and debated. To address this problem, we integrated morphology and restriction site-associated DNA sequencing (RAD-seq) to define their species boundaries. We obtained consistent results from the two datasets, supporting two distinct lineages corresponding to P. bournei and P. zhennan. In P. bournei, higher order leaf venation is more prominent, petioles are thicker, and leaf apex angle is narrower, compared to P. zhennan. Both datasets also revealed that the former putative P. bournei populations from northeastern Guizhou belong to P. zhennan. The two species are now distinct in distributions except in the Wuling Mountains, where they overlap. Phoebe bournei occurs mainly in central Fujian, southern Jiangxi, the Nanling Mountains, and the Wuling Mountains, whereas P. zhennan is found in the adjoining eastern regions of the Qionglai Mountains, the southern Sichuan hills, and the Wuling Mountains. The re-delimitation of P. bournei and P. zhennan and clarification of their ranges provide a better scientific basis guiding the conservation and sustainable utilization of these tree species.

KeywordRAD-BASED PHYLOGENETICS POPULATION-STRUCTURE INFERRING PHYLOGENY MISSING DATA CLIMATE CHINA IDENTIFICATION BOUNDARIES RESOLUTION INFERENCE
Subject AreaPlant Sciences
DOI10.1111/jse.12433
Indexed BySCI
Language英语
WOS IDWOS:000470936000004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11319
Collection植物系统与保护生物学研究组
Affiliation1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Plant Phylogenet & Conservat Grp, Kunming 650223, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Conran, John G.] Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia
4.Conran, John G.] Univ Adelaide, Australian Ctr Evolutionary Biol & Biodivers, Adelaide, SA 5005, Australia
5.Conran, John G.] Univ Adelaide, Sprigg Geobiol Ctr, Adelaide, SA 5005, Australia
Recommended Citation
GB/T 7714
Ding, Xin,Xiao, Jian Hua,Li, Lang,et al. Congruent species delimitation of two controversial gold-thread nanmu tree species based on morphological and restriction site-associated DNA sequencing data[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2019,57(x):234-246.
APA Ding, Xin,Xiao, Jian Hua,Li, Lang,Conran, John G.,&Li, Jie.(2019).Congruent species delimitation of two controversial gold-thread nanmu tree species based on morphological and restriction site-associated DNA sequencing data.JOURNAL OF SYSTEMATICS AND EVOLUTION,57(x),234-246.
MLA Ding, Xin,et al."Congruent species delimitation of two controversial gold-thread nanmu tree species based on morphological and restriction site-associated DNA sequencing data".JOURNAL OF SYSTEMATICS AND EVOLUTION 57.x(2019):234-246.
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