Metacentric sex-chromosomes in a rodent species, Rattus (Millardia) meltada pallidior (Ryley)

Gill, T.K.; Mittal, O.P.; Gupta, S.

Cytobios 55: 222-223

1988


ISSN/ISBN: 0011-4529
PMID: 3251677
Document Number: 307132
The diploid chromosome number in Rattus (Millardia) meltada pallidior (Ryley) is 52 where all the autosomes are acrocentric, and the sex-chromosomes X and y are metacentric. The X chromosome is the largest in the complement being 13.25 microns and the y chromosome is 6.00 microns in length. The autosomes range in size from 9 microns to 2.57 microns.

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