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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0166118
论文题名:	Exploring Canadian Echinoderm Diversity through DNA Barcodes
作者:	Kara K. S. Layton; Erin A. Corstorphine; Paul D. N. Hebert
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-11-21
卷:	11, 期:11
语种:	英语
英文关键词:	Echinoderms ; Oceans ; Cryptic speciation ; DNA barcoding ; Taxonomy ; Canada ; DNA sequence analysis ; Phylogeography
英文摘要:	DNA barcoding has proven an effective tool for species identification in varied groups of marine invertebrates including crustaceans, molluscs, polychaetes and echinoderms. In this study, we further validate its utility by analyzing almost half of the 300 species of Echinodermata known from Canadian waters. COI sequences from 999 specimens were assigned to 145 BINs. In most cases, species discrimination was straightforward due to the large difference (25-fold) between mean intra- (0.48%) and inter- (12.0%) specific divergence. Six species were flagged for further taxonomic investigation because specimens assigned to them fell into two or three discrete sequence clusters. The potential influence of larval dispersal capacity and glacial events on patterns of genetic diversity is discussed for 19 trans-oceanic species. Although additional research is needed to clarify biogeographic patterns and resolve taxonomic questions, this study represents an important step in the assembly of a DNA barcode library for all Canadian echinoderms, a valuable resource for future biosurveillance programs.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0166118&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/23286
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0166118.pdf（2042KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Centre for Biodiversity Genomics, Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, N1G 2W1, Canada;Centre for Biodiversity Genomics, Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, N1G 2W1, Canada;Centre for Biodiversity Genomics, Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, N1G 2W1, Canada

Recommended Citation:

Kara K. S. Layton,Erin A. Corstorphine,Paul D. N. Hebert. Exploring Canadian Echinoderm Diversity through DNA Barcodes[J]. PLOS ONE,2016-01-01,11(11)

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