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Title: Hybrid speciation in experimental populations of yeast
Authors: Greig, Duncan
Louis, Edward J.
Borts, Rhona H.
Travisano, Michael
First Published: 2002
Publisher: American Association for the Advancement of Science
Citation: Science, 2002, 298 (5599), pp.1773-1775.
Abstract: Most models of speciation require gradual change and geographic or ecological isolation for new species to arise. Homoploid hybrid speciation occurred readily between Saccharomyces cerevisiae and Saccharomyces paradoxus. Hybrids had high self-fertility (about 82%), low fertility when backcrossed to either parental species (about 7.5%), and vigorous growth under different thermal environments that favored one or the other of the parental species. Extensive karyotypic changes (tetrasomy) were observed in the hybrids, although genic incompatibilities accounted for 50% of the variation in self-fertility.
DOI Link: 10.1126/science.1076374
ISSN: 0036-8075
eISSN: 1095-9203
Type: Article
Appears in Collections:Published Articles, Dept. of Genetics

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