ArticleGenetics2005
The meiotic recombination hot spot ura4A in Schizosaccharomyces pombe.
Article in Genetics, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Article
- Physical basis for long-distance communication along meiotic chromosomes.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Nucleosomal organization of replication origins and meiotic recombination hotspots in fission yeast.The EMBO journal · 2012Article
- Article
- Sites of strong Rec12/Spo11 binding in the fission yeast genome are associated with meiotic recombination and with centromeres.Chromosoma · 2008Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The meiotic recombination hot spot ura4A (formerly ura4-aim) of Schizosaccharomyces pombe was observed at the insertion of the ura4+ gene 15 kb centromere-proximal to ade6 on chromosome III. Crosses heterozygous for the insertion showed frequent conversion at the heterology with preferential loss of the insertion. This report concerns the characterization of 12 spontaneous ura4A mutants. A gradient of conversion ranging from 18% at the 5' end to 6% at the 3' end was detected. A novel phenomenon also was discovered: a mating-type-related bias of conversion. The allele entering with the h+ parent acts preferentially as the acceptor for conversion (ratio of 3:2). Tetrad analysis of two-factor crosses showed that heteroduplex DNA is predominantly asymmetrical, enters from the 5' end, and more often than not covers the entire gene. Restoration repair of markers at the 5' end was inferred. Random spore analyses of two-factor crosses and normalization of prototroph-recombinant frequencies to physical distance led to the demonstration of map expansion: Crosses involving distant markers yielded recombinant frequencies higher than the sum of the frequencies measured in the subintervals. Finally, marker effects on recombination were defined for two of the ura4A mutations.
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Registered trials
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