Document Detail

G-banding patterns of the chromosomes of amphioxus Branchiostoma belcheri tsingtauense.
MedLine Citation:
PMID:  15383065     Owner:  NLM     Status:  MEDLINE    
Chromosome banding study remains lacking in amphioxus heretofore. This paper reports the G-band patterns of the metaphase chromosomes of amphioxus Branchiostoma belcheri tsingtauense, the first description and numbering of the karyotyped bands in a cephalochordate. G-banding results show that four out of the ten second pair chromosomes examined are heteromorphic, while the remaining ones (6/10) are homomorphic. In contrast, the other 17 pair chromosomes are all homomorphic. These broadly support our previous suggestion that the chromosomes No. 2 are a pair of sex-chromosomes. G-banding method stains positively 65.5% of the chromosome surface, and a total of 149 G-bands (77 positive, 65 negative and 7 variable) has been recorded in the 17 autosomes and the dimorphic chromosomes 2A' and 2A.
Changliu Wang; Shicui Zhang; Jiansong Chu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Hereditas     Volume:  141     ISSN:  0018-0661     ISO Abbreviation:  Hereditas     Publication Date:  2004  
Date Detail:
Created Date:  2004-09-22     Completed Date:  2004-11-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374654     Medline TA:  Hereditas     Country:  Sweden    
Other Details:
Languages:  eng     Pagination:  2-7     Citation Subset:  IM    
Department of Marine Biology, Ocean University of China, Qingdao, PR China.
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MeSH Terms
Chordata, Nonvertebrate / genetics*
Chromosome Banding
Chromosomes / genetics

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