Genetics and phylogeny of genus Coilia in China based on AFLP markers

The taxonomy of Coilia has been extensively studied in China,and yet phylogenetic relationships among component taxa remain controversial.We used a PCR-based fingerprinting technique,amplified fragment length polymorphism（AFLP） to characterize and identify all four species of Coilia in China.We exam...

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Bibliographic Details
Published in:Chinese journal of oceanology and limnology 2010-07, Vol.28 (4), p.795-801
Main Author: 杨巧莉 韩志强 孙典荣 谢松光 林龙山 高天翔
Format: Article
Language:English
Subjects:
AFLP标记
Amplified fragment length polymorphism
Cladistics
Coilia
Earth and Environmental Science
Earth Sciences
Fingerprinting
Fish
Genetic distance
Genetic diversity
Genetic markers
Genetic relationship
Genetics
Marine biology
Morphology
Nucleotide sequence
Oceanography
Phylogenetics
Phylogeny
Polymorphism
Taxa
Taxonomy
UPGMA聚类
亲缘关系
分类系统
发育遗传学
扩增片段长度多态性
系统发育分析
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Summary:The taxonomy of Coilia has been extensively studied in China,and yet phylogenetic relationships among component taxa remain controversial.We used a PCR-based fingerprinting technique,amplified fragment length polymorphism（AFLP） to characterize and identify all four species of Coilia in China.We examined the genetic relationships of the four species of Coilia and a subspecies of Coilia nasus with AFLP.A total of 180 AFLP loci were generated from six primer combinations,of which 76.11% were polymorphic.The mean genetic distance between pairs of taxa ranged from 0.047 to 0.596.The neighbor-joining tree and UPGMA dendrogram resolved the investigated species into three separate lineages：（1） C.mystus,（2） C.grayii and（3） C.brachygnathus,C.nasus,and C.nasus taihuensis.Phylogenetic analysis of the AFLP data is inconsistent with current morphological taxonomic systems.The AFLP data indicated a close relationship among C.brachygnathus,C.nasus taihuensis,and C.nasus.Therefore,the two species described under Coilia（C.brachygnathus and C.nasus taihuensis） are treated as synonyms of C.nasus.
ISSN:0254-4059
2096-5508
1993-5005
2523-3521
DOI:10.1007/s00343-010-9093-3