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PMID: 17248846 Published · ppublish English Journal Article

Tetraploid Strains of SACCHAROMYCES CEREVISIAE That Are Trisomic for Chromosome III.

Genetics ·Vol. 89 ·No. 4 ·1978-08-00 ·Pages 667-84

Riley MI, Manney TR

Abstract

Meiotic segregation of several genes has been studied in tetraploid strains that are trisomic for chromosome III. The segregation data were compared to a computer simulation that assumes trivalent pairing of homologues involved in exchanges, followed by nonpreferential segregation. Trivalent pairing was characterized by higher frequencies of exchange as compared to bivalent pairing, and by the presence of spores resulting from at least double crossovers involving all three homologues. Trivalent segregation was characterized by a unique recombinant class. The strong interference normally exhibited in diploid meiotic recombination was not evident from the frequency of double crossovers in these strains.

Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Riley M I
Department of Physics, Kansas State University, Manhattan, Kansas 66506.
Manney T R
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Article Info
Journal
Genetics
Abbr.
Genetics
ISSN
0016-6731
DOI
10.1093/genetics/89.4.667
Published
1978-08-00
Pages
667-84
Language
English
Region
United States
NLM ID
0374636
PMCID
PMC1213859
External Links
PubMed source DOI: 10.1093/genetics/89.4.667 PMC Full Text View journal details
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