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Four evolutionarily significant units among narrow-barred Spanish mackerel (Scomberomorus commerson) in the Indo-West Pacific region

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Title Four evolutionarily significant units among narrow-barred
Spanish mackerel (Scomberomorus commerson) in the Indo-West
Pacific region
Not Available
 
Creator Divya,P R
Vineesh,N
Kathirvelpandian,A
Mohitha,C
Rajool Shanis,C P
Basheer,V S
Gopalakrishnan,A
 
Subject Indo-West Pacific
Genetic stock structure
Control region
S. commerson
 
Description Not Available
Population genetic structure of the pelagic narrowbarred
Spanish mackerel (Scomberomorus commerson) was
examined in 10 populations from the Indo-West Pacific region,
based on mitochondrial control region DNA.We examined
genetic composition of 56 individuals of S. commerson
from the Arabian Sea, Bay of Bengal, and compared them
with 40 individuals from previously published data sampled
from the ROPME Seas area and South West Pacific Ocean.
The overall nucleotide and haplotype diversities were estimated
to be 0.072 and 0.995, respectively. Demographic parameters
such as Tajima’s D and Fu’s Fs statistics were negative,
but non-significant across all the populations, except for New
Caledonia in the South West Pacific, indicating a stable population
of S. commerson in this region. To assess intra-specific
patterns of connectivity, we constructed statistical parsimony
networks among haplotypes and estimated time of most recent
population expansion.AMOVA and FST values among Indian
and Arabian regions revealed non-significant variation among
the populations, while separation was noted among the samples
of the northern and eastern Indian oceans, as well as with
South West Pacific. A parsimony network analysis provided
evidence for four separate population segment/stocks in the
Indian Ocean and Pacific Ocean, raising a conservation concern.
Our results support a need for regional cooperation to
ensure the sustainable exploitation of S. commerson in the
Indo-West Pacific region.
Not Available
 
Date 2021-09-17T07:59:41Z
2021-09-17T07:59:41Z
2017
 
Type Article
 
Identifier Not Available
1867-1624
http://krishi.icar.gov.in/jspui/handle/123456789/63864
 
Language English
 
Relation Not Available
 
Publisher Not Available