Mixed segregation and recombination of chromosomes and YACs during single-division meiosis in spo13 strains of Saccharomyces cerevisiae. | Zendy

Y. Hugerat | Zendy; Giora Simchen | Zendy

Open Access

Mixed segregation and recombination of chromosomes and YACs during single-division meiosis in spo13 strains of Saccharomyces cerevisiae.

Author(s) -

Y. Hugerat,

Giora Simchen

Publication year - 1993

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/135.2.297

Subject(s) - biology , meiosis , genetics , bivalent (engine) , homologous chromosome , chromosome segregation , centromere , genetic recombination , saccharomyces cerevisiae , ploidy , homologous recombination , chromosome , dna , recombination , yeast , gene , chemistry , organic chemistry , metal

Diploid yeast strains, homozygous for the mutation spo13, undergo a single-division meiosis and form dyads (two spores held together in one ascus). Dyad analysis of spo13/spo13 strains with centromere-linked markers on five different chromosomes and on a pair of human DNA YACs shows that: (a) in spo13 meiosis, chromosomes undergo mixed segregation, namely some chromosomes segregate reductionally whereas others, in the same cell, segregate equationally; (b) different chromosomes exhibit different segregation tendencies; (c) recombination between homologous chromosomes might not determine that a bivalent undergoes reductional rather than equational segregation.

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