Karyotype analysis of four nemertean species

We performed a karyotype analysis on four species from Phylum Nemertea using regenerating somatic cells. Two palaeonemertean species, Cephalothrix hongkongiensis and Cephalothrix sp., had the same chromosome number （2n=28）, but different karyotypes （16 m＋10 sm＋2 st, NF=54 and 22 m＋4 sm＋2 st, NF=54,...

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Bibliographic Details
Published in:	Chinese journal of oceanology and limnology Vol. 27; no. 4; pp. 748 - 752
Main Author:	陈海霞刘可可孙世春
Format:	Journal Article
Language:	English
Published:	Heidelberg SP Science Press 01-11-2009 Springer Nature B.V Mariculture Research Lab,Ocean University of China,Qingdao 266003,China
Subjects:	Cellular biology Cephalothrix Chromosome number Chromosomes CNF Comparative studies Earth and Environmental Science Earth Sciences Karyotypes Marine biology Nemertea Oceanography Somatic cells Worms 体细胞再生染色体数目染色体核型分析核因子 karyotype chromosome Nemertea
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Summary:	We performed a karyotype analysis on four species from Phylum Nemertea using regenerating somatic cells. Two palaeonemertean species, Cephalothrix hongkongiensis and Cephalothrix sp., had the same chromosome number （2n=28）, but different karyotypes （16 m＋10 sm＋2 st, NF=54 and 22 m＋4 sm＋2 st, NF=54, respectively）. The karyotypes of the two heteronemerteans, Notospermus geniculatus and Ramphogordius sanguineus were 2n=38, 30 m＋6 sm＋2 sm/st （NF=76/74） and 2n=56, 48 m＋4 sm＋4 sin/st CNF=112/108）, respectively.
Bibliography:	karyotype chromosome; karyotype; Nemertea 37-1150/P S642.2 chromosome Nemertea S814.8 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0254-4059 2096-5508 1993-5005 2523-3521
DOI:	10.1007/s00343-009-9220-1