Somatic and meiotic chromosomes of the freshwater prawn, Macrobrachium rosenbergii (de Man) used in aquaculture
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Abstract
Cytogenetical studies were conducted in the Indian population of giant freshwater prawn, Macrobrachium rosenbergii for the first time. The chromosome spreads were obtained from the tissues of hepatopancreas, gill, antennal gland and regenerated blastema. A cytological analysis of these tissues revealed a modal diploid chromosome number of 2n = 118 in both male and female individuals. This was confirmed by the modal haploid chromosome number of n = 59 for the testes. A second peak of diploid chromosome number of 2n = 110 was also recorded in M. rosenbergii. The karyotype comprised 29 metacentric, 5 submetacentric, 3 subtelocentric and 22 acrocentric pairs in males and 37 metacentric, 6 submetacentric, 1 subtelocentric and 15 acrocentric pairs in females. The fundamental arm number in male and female was found to be 186 and 204 respectively. Sex chromosomes were cytologically indistinguishableDownloads
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Submitted
2011-08-10
Published
2017-03-31
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The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.How to Cite
Das, M., & Lakra, W. S. (2017). Somatic and meiotic chromosomes of the freshwater prawn, Macrobrachium rosenbergii (de Man) used in aquaculture. Indian Journal of Fisheries, 45(3), 339-343. https://epubs.icar.org.in/index.php/IJF/article/view/8722