Tetrasomic inheritance of isoenzyme markers in the highbush blueberry, Vaccinium corymbosum L

Segragation ratios at four enzyme loci ( Mdh -2, Pgi -2, 6 Pgd -2, and Got -3) in Vaccinium corymbosum (4x) cultivars were in close agreement with the expectations of tetrasomic inheritance. Random chromosome segregation was suggested by the absence of double reduction progeny genotypes and previous...

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Bibliographic Details
Published in:Heredity 1989-08, Vol.63 (1), p.11-18
Main Authors: Krebs, S L, Hancock, J F
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Classical and quantitative genetics. Population genetics. Molecular genetics
Classical genetics, quantitative genetics, hybrids
Cytogenetics
Ecology
Evolutionary Biology
Fundamental and applied biological sciences. Psychology
Generalities. Genetics. Plant material
Genetics and breeding of economic plants
Genetics of eukaryotes. Biological and molecular evolution
Human Genetics
original-article
Plant Genetics and Genomics
Pteridophyta, spermatophyta
Vegetals
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Summary:Segragation ratios at four enzyme loci ( Mdh -2, Pgi -2, 6 Pgd -2, and Got -3) in Vaccinium corymbosum (4x) cultivars were in close agreement with the expectations of tetrasomic inheritance. Random chromosome segregation was suggested by the absence of double reduction progeny genotypes and previous reports of bivalent pairing in this species. A common species origin of autotetraploid highbush blueberry and other Vaccinium polyploids is proposed. Different genetic and evolutionary consequences of polysomic inheritance versus disomic inheritance are discussed with reference to the literature on polyploids.
ISSN:0018-067X
1365-2540
DOI:10.1038/hdy.1989.70