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Multiregional origin of B chromosomes in the grasshopper Eyprepocnemis plorans.

Multiregional origin of B chromosomes in the grasshopper Eyprepocnemis plorans.

Authors :
Cabrero J
Bakkali M
Bugrov A
Warchalowska-Sliwa E
López-León MD
Perfectti F
Camacho JP
Source :
Chromosoma [Chromosoma] 2003 Dec; Vol. 112 (4), pp. 207-11. Date of Electronic Publication: 2003 Nov 20.
Publication Year :
2003

Abstract

Analysis of chromosome localization of three molecular markers, 18S-5.8S-28S rDNA, 5S rDNA and a 180 bp satDNA, showed that B chromosomes in the grasshopper Eyprepocnemis plorans originated independently in Eastern (Caucasus) and Western (Spain and Morocco) populations. Eastern B chromosomes are most likely derived from the smallest autosome, which is the only A chromosome carrying the three markers, in coincidence with Caucasian B chromosomes. Western B chromosomes, however, lack 5S rDNA and are most likely derived from the X chromosome, which is the only A chromosome carrying the two remaining markers, always in the same order with respect to the centromere, as the B chromosome.

Details

Language :
English
ISSN :
0009-5915
Volume :
112
Issue :
4
Database :
MEDLINE
Journal :
Chromosoma
Publication Type :
Academic Journal
Accession number :
14628147
Full Text :
https://doi.org/10.1007/s00412-003-0264-2