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对1929年发现的侏儒埃氏虾虎鱼（Economidichthys pygmaeus Holly）（鱼类，虾虎鱼科）的细胞遗传学研究，该鱼是希腊西部特有的淡水虾虎鱼。

A cytogenetical study on Economidichthys pygmaeus Holly, 1929 (Pisces, Gobiidae), an endemic freshwater goby from Western Greece.

作者信息

Rampin Massimiliano, Gkenas Christos, Malavasi Stefano, Libertini Angelo

机构信息

Centro de Biologia Ambiental, Faculdade de Ciências - Universidade de Lisboa - Portugal, Campo Grande - 1749-016 Lisboa - Portugal.

出版信息

Comp Cytogenet. 2011 Dec 22;5(5):391-6. doi: 10.3897/CompCytogen.v5i5.2015. eCollection 2011.

DOI:10.3897/CompCytogen.v5i5.2015
PMID:24260643
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3833764/
Abstract

A cytogenetic study was carried out on the chromosomes and the nuclear DNA content of the freshwater goby Economidichthys pygmaeus (Pisces, Gobiidae). The species is characterized by a 2n=46 karyotype consisting of 12 submetacentric and 11 subtelocentric chromosome pairs (NF=70). Major (45S) rDNA genes are terminal-centromeric located on the short arm of a single medium-small sized submetacentric pairas assessed by in situ hybridization, CMA3 staining, and Ag-NOR banding. The haploid (C-value) nuclear DNA content is 0.93±0.003 picograms. The cytogenetical data of Economidichthys pygmaeus were compared with those ones already available for other related gobies.

摘要

对淡水虾虎鱼侏儒埃氏虾虎鱼（鱼类，虾虎鱼科）的染色体和核DNA含量进行了细胞遗传学研究。该物种的特征是核型为2n = 46，由12对亚中着丝粒染色体和11对亚端着丝粒染色体组成（NF = 70）。通过原位杂交、CMA3染色和Ag-NOR显带评估，主要（45S）rDNA基因位于单个中小型亚中着丝粒染色体对的短臂上，呈端粒-着丝粒分布。单倍体（C值）核DNA含量为0.93±0.003皮克。将侏儒埃氏虾虎鱼的细胞遗传学数据与其他相关虾虎鱼已有的数据进行了比较。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/4b5d7b86e48b/CompCytogen-005-391-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/c6eae93e93ac/CompCytogen-005-391-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/dcdf393e4e5e/CompCytogen-005-391-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/dc345df66fdd/CompCytogen-005-391-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/4b5d7b86e48b/CompCytogen-005-391-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/c6eae93e93ac/CompCytogen-005-391-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/dcdf393e4e5e/CompCytogen-005-391-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/dc345df66fdd/CompCytogen-005-391-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68a7/3833764/4b5d7b86e48b/CompCytogen-005-391-g004.jpg

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