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Genetic variation and phylogenetic relationship between two species of yellow catfish, Horabagrus brachysoma and H. nigricollaris (Teleostei: Horabagridae) based on RAPD and microsatellite markers

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Title Genetic variation and phylogenetic relationship between
two species of yellow catfish, Horabagrus brachysoma
and H. nigricollaris (Teleostei: Horabagridae) based
on RAPD and microsatellite markers
Not Available
 
Creator Ponniah,A G
Basheer,V S
Shivanandan,Remya
Gopalakrishnan,A
Abdul Muneer,P M
 
Subject Horabagrus
Phylogeny
RAPD
Genetic
variation
Microsatellites
Polymorphism
 
Description Not Available
The two species of yellow catfish, Horabagrus
brachysoma and H. nigricollaris are categorized as
‘endangered’ and ‘critically endangered’ respectively in
their wild habitat. Proper knowledge of genetic structure and
variability of these endangered species are highly essential
for the management, conservation and improvement of fish
stocks. Therefore, genetic variation and phylogenetic relationships
between these species of yellow catfish sampled
from Chalakkudy River in the hot spot of biodiversity-
Western Ghats region, Kerala, India were analyzed by using
Random amplified polymorphic DNA (RAPD) and microsatellite
markers. 85 RAPD and five microsatellites loci
were detected to analyze the genetic variation and phylogenetic
relationships among these species. Out of 85 RAPD
loci produced only 52.94% were polymorphic whereas in
microsatellite, all 5 loci were polymorphic (100%). Species specific
RAPD bands were found in both species studied. In
microsatellite, the number of alleles across the five loci
ranged from 1 to 8. The observed heterozygosities in
H. brachysoma and H. nigricollaris were 0.463 and 0.443,
respectively. Here, both RAPD and microsatellite methods
reported a low degree of gene diversity and lack of genetic
heterogeneity in both species of Horabagrus which strongly
emphasize the need of fishery management, conservation
and rehabilitation of these species.
Not Available
 
Date 2021-09-16T06:09:49Z
2021-09-16T06:09:49Z
2011
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62806
 
Language English
 
Relation Not Available
 
Publisher Kluwer