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夏威夷珊瑚种群中DNA标记的不同进化历史。

Divergent evolutionary histories of DNA markers in a Hawaiian population of the coral .

作者信息

Putnam Hollie M, Adams Diane K, Zelzion Ehud, Wagner Nicole E, Qiu Huan, Mass Tali, Falkowski Paul G, Gates Ruth D, Bhattacharya Debashish

机构信息

Hawai'i Institute of Marine Biology, Kaneohe, HI, United States of America.

Department of Biological Sciences, University of Rhode Island, Kingston, RI, United States of America.

出版信息

PeerJ. 2017 May 18;5:e3319. doi: 10.7717/peerj.3319. eCollection 2017.

DOI:10.7717/peerj.3319
PMID:28533967
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5438590/
Abstract

We investigated intra- and inter-colony sequence variation in a population of the dominant Hawaiian coral by analyzing marker gene and genomic data. Ribosomal ITS1 regions showed evidence of a reticulate history among the colonies, suggesting incomplete rDNA repeat homogenization. Analysis of the mitochondrial genome identified a major () and a minor () haplotype in single polyp-derived sperm bundle DNA with some colonies containing 2-3 different mtDNA haplotypes. In contrast, and newly identified single-copy nuclear genes showed either no sequence differences or minor variations in SNP frequencies segregating among the colonies. Our data suggest past mitochondrial introgression in , whereas nuclear single-copy loci show limited variation, highlighting the divergent evolutionary histories of these coral DNA markers.

摘要

我们通过分析标记基因和基因组数据，研究了夏威夷优势珊瑚种群内和种群间的序列变异。核糖体ITS1区域显示出各群体间存在网状进化历史的证据，表明rDNA重复序列未完全同质化。线粒体基因组分析在单个珊瑚虫衍生的精子束DNA中鉴定出一个主要单倍型（）和一个次要单倍型（），一些群体含有2 - 3种不同的线粒体DNA单倍型。相比之下，[此处原文缺失相关基因名称]和新鉴定的单拷贝核基因在各群体间要么没有序列差异，要么SNP频率的差异较小。我们的数据表明过去[此处原文缺失相关物种名称]存在线粒体基因渗入，而核单拷贝基因座显示出有限的变异，突出了这些珊瑚DNA标记不同的进化历史。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/7afb9efd6c26/peerj-05-3319-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/29e76c0b9b1f/peerj-05-3319-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/ffb992cb60a5/peerj-05-3319-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/f8b2cb95d058/peerj-05-3319-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/5ba131db8734/peerj-05-3319-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/7afb9efd6c26/peerj-05-3319-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/29e76c0b9b1f/peerj-05-3319-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/ffb992cb60a5/peerj-05-3319-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/f8b2cb95d058/peerj-05-3319-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/5ba131db8734/peerj-05-3319-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b46d/5438590/7afb9efd6c26/peerj-05-3319-g005.jpg

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本文引用的文献

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