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Investigating genetic heterogeneity using microsatellite markers after long term selection for egg production in Rhode Island Red chicken

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Title Investigating genetic heterogeneity using microsatellite markers after long term selection for egg production in Rhode Island Red chicken
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Creator ANANTA KUMAR DAS1, SANJEEV KUMAR2, ABDUL RAHIM3, JOWEL DEBNATH4 and LAXMIKANT SAMBHAJI KOKATE5
 
Subject Genetic identity and distance, Hardy-Weinberg disequilibrium, Heterozygosity, Microsatellites, Phylogeny, RIR chicken
 
Description Not Available
Not AvailabGenetic heterogeneity was investigated using 24 microsatellite markers and genomic DNA of 24 randomly
selected birds from the selected and control lines of RIR chicken maintained at ICAR-Central Avian Research
Institute, Izatnagar. The microsatellite alleles were determined on urea-PAGE, recorded using GelDoc system and
the samples were genotyped. The complete genotypic data set was analyzed using POPGENE software. The observed
heterozygosity (Ho) means were 0.6306±0.3901 and 0.6528±0.4345 in the selected and control line, respectively.
Explicitly the control line contained more Ho mean and thus the more diverse than the selected population. The
expected heterozygosity (He) ranged from 0.5053 (MCW0059) to 0.8421 (MCW0004) with mean of 0.7066±0.020
in the selected line, and from 0.2899 (MCW0059) to 0.9130 (ADL0136) with mean of 0.7095±0.030 in the control
line. The Ho mean was less than the He mean in each population; the Chi square and G-square tests revealed
significant deviations of almost all the loci from the Hardy-Weinberg equilibrium. The selected and control line
populations had the corresponding genetic identity and genetic distance of 0.5264 and 0.6418 as original measures,
and 0.5528 and 0.5928 as unbiased measures. The phylogenetic analysis revealed their moderate genetic diversity
reflecting 29.64 to 32.09% common inheritance. This present investigation thus estimated genetic heterogeneity
using a set of microsatellite markers after long term selection for egg production in RIR chicken and could be
useful in the study of population dynamics under selection pressure.le
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Date 2024-07-29T16:44:09Z
2024-07-29T16:44:09Z
2020-01-29
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/84004
 
Language English
 
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Publisher Not Available