On the chromosomes of a bivalve, Anadara rhombea

Muthu, P (1988) On the chromosomes of a bivalve, Anadara rhombea. CMFRI Bulletin, 42 (1). pp. 192-194.

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Abstract

Study of chromosomes of bivalves is technically difficult. Spermatogonia and spermatocytes, oocytes, and cleavage stages of the fertilized eggs are more favourable than the somatic tissues of the adultss for the study of chromosomes. Hypotonic treatment, prior to fixation, is an essential pretreatment for obtaining well-spread chromosomes. 1he study of the chromosomes of a bivalve, Anadara rhombea, from the Porto Novo waters, has been the first of its kind in an Indian bivalve. Oiakinet'C and first metaphase stages from 'squash' preparations of testis show that in male 2n •= 28 in this species; the sex chromosomes, if any, are not distinguishable.

Item Type:Article
Uncontrolled Keywords:Chromosomes; bivalve; Anadara rhombea
Subjects:Molluscan Fisheries
Divisions:CMFRI-Cochin > Marine Capture > Molluscan Fisheries
ID Code:2570
Deposited By:Dr. V Mohan
Deposited On:24 Aug 2010 13:19
Last Modified:24 Aug 2010 13:19

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