Examining the cause of high inbreeding depression: analysis of whole-genome sequence data in 28 selfed progeny of Eucalyptus grandis.

Abstract excerpt

The genome-wide heterozygosity at 9590 genes, all heterozygous in a single Eucalyptus grandis parent tree, was examined in a group of 28 S1 offspring. Heterozygosity ranged from 52-79%, averaging 65.5%, much higher than the 50% expected under random segregation, supporting the occurrence of strong (47%) selection against homozygosity. The expected pattern of heterozygosity from theoretical calculations and...

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