University:
Swansea University
Course:
PM-149 | Genetics, Genomics & Evolution
Academic year:

2023
Views:

161

Pages:

2
Author:

Amal J.

Components of Phenolypic VauianceVp= = VG, + VE + V GEPhenotypic geneticenvironmental Genetict environmentalvauianceAdditive, Dominoxe, Gene InteractionVp= (VA + VD + VI )t VE + VGEEpistasis (VG).HeletabilityPherotypic valution dueto genetic differenceof Hindicate 50% of phenotypenauowBroadsense (H)sense heritability(if H=50)controlled bygenotype(h)contribuitioncontribution of additiveof genotypeoneffection phendypephenotypeh VA2H=VGVp.VpProblemVp..575VE = 233340H= VG = 235 =0.408x100VG1 = Vp-VEVp575= 575-H = 40.8 = 40.8% bygenstype.340. 23559. % influenced by environment nauow sense heritabilityIR= hisSelection differentialbroonarowResponsesenseto selectionAvg milk production in a dairy farm = 80L milkfarmer male it with = 120L milk - max milk producingS=40hselection differential.milkproducedProgavg = 100L.hyprogens.R = 100-80= 2020.= h 40h= 20 1/2 0.5 = 50%40avgmilk production =cass 901 KL 100LS= 100-50Breeding mate = 150=50Prog avg = RR = 201550 50x0.5II 1000 = 25)

Components of Phenotypic Variance and Question Related to Heritability

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