Two adjacent inversions maintain genomic differentiation between migratory and stationary ecotypes of Atlantic cod
作者: Tina Graceline KirubakaranHarald GroveMatthew P. KentSimen R. SandveMatthew BaranskiTorfinn NomeMaria Cristina De RosaBenedetta RighinoTorild JohansenHåkon OtteråAnna SonessonSigbjørn LienØivind Andersen
作者单位: 1Centre for Integrative Genetics (CIGENE) Department of Animal and Aquaculture Sciences (IHA) Norwegian University of Life Sciences (NMBU) PO Box 5003 Ås N‐1430 Norway
2 Nofima PO Box 5010 Ås N‐1430 Norway
3 Institute of Chemistry of Molecular Recognition – CNR and Institute of Biochemistry and Clinical Biochemistry Catholic University of Rome Rome 00168 Italy
4 Institute of Marine Research PO Box 6404 Tromsø N‐9294 Norway
刊名: Molecular Ecology, 2016, Vol.25 (10), pp.2130-2143
来源数据库: Wiley Journal
DOI: 10.1111/mec.13592
关键词: chromosomal inversiongene flowlocal adaptationrecombinationsupergeneswim bladder
原始语种摘要: Abstract(#br)Atlantic cod is composed of multiple migratory and stationary populations widely distributed in the North Atlantic Ocean. The Northeast Arctic cod (NEAC) population in the Barents Sea undertakes annual spawning migrations to the northern Norwegian coast. Although spawning occurs sympatrically with the stationary Norwegian coastal cod (NCC), phenotypic and genetic differences between NEAC and NCC are maintained. In this study, we resolve the enigma by revealing the mechanisms underlying these differences. Extended linkage disequilibrium (LD) and population divergence were demonstrated in a 17.4‐Mb region on linkage group 1 (LG1) based on genotypes of 494 SNPs from 192 parents of farmed families of NEAC, NCC or NEACxNCC crosses. Linkage analyses revealed two adjacent inversions...
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