Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2016 - IJCMAS--ICV 2016: 92.3 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2017) [Effective from January 1, 2017]For more details click here
Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2016: 92.3
Index Copernicus ICI Journals Master List 2016 - IJCMAS--ICV 2016: 92.3
For more details click here
journals IJCMAS
See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2016.5(12): 171-181
DOI: http://dx.doi.org/10.20546/ijcmas.2016.512.019


Deterioration of Genetic Diversity: Concern in Hatchery Populations of Catla (Catla catla, Hamiltion 1822: Cypriniformes, Cyprinidae) of Sylhet District in Bangladesh
Nazmul Haque1 and Tahmina Hoq2*
1Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
2Institute of Education and Research, University of Dhaka, Bangladesh
*Corresponding author
Abstract:

Haors, are important source of freshwater fish (both production and diversities) population in Bangladesh which is mostly found in greater Sylhet district. Based on this fisheries diversity a large number of fish hatcheries have developed here for commercial aquaculture in this area but the genetic statuses in terms of effective breeding number, heterozygosity, genetic distance among population groups etc. of these hatcheries remain unknown. Therefore, to know the genetic status of these fish hatcheries the present study was carried out. This study reveals the genetic variation of hatchery populations of Catlacatla from three major hatcheries in Sylhet district named Mahbub Fish Hatchery, Shurma Gate Fish Hatchery, and Nabigonj Fish Hatchery in contrast to Padma river population as a wild population. The study was based on analysis of six microsatellite loci. The average number of alleles was ranged from 5.00 in the Shurma Gate Fish Hatchery to 6.33 in the Mahbub Fish Hatchery. Deviation from Hardy-Weinberg equilibrium was observed depending on the locus. Significant dwindle of heterozigosity was observed among the populations provided an indication that populations were may be under stress due to inbreeding , low number of effective individuals (Ne) and collection of brood from nearby hatcheries. The unweighted pair group method with averages (UPGMA) dendrogram based on genetic distance resulted in two clusters: the Padma river population was alone in one cluster whereas the rest of the populations made another cluster.


Keywords: Catla catla,PCR,Population structure,Genetic variation, microsatellite.
Download this article as Download

How to cite this article:

Nazmul Haque and Tahmina Hoq. 2016. Deterioration of Genetic Diversity: Concern in Hatchery Populations of Catla (Catla catla, Hamiltion 1822: Cypriniformes, Cyprinidae) of Sylhet District in Bangladesh.Int.J.Curr.Microbiol.App.Sci. 5(12): 171-181. doi: http://dx.doi.org/10.20546/ijcmas.2016.512.019