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Title: Impairment of homologous chromosome synapsis in meiosis in rye Secale cereale L. Caused by a recessive mutation of the sy18 gene.
Authors: Sosnikhina, S. P.; Mikhailova, E. I.; Tsvetkova, N. V.; Voylokov, A. V.; Lovtsyus, A. V.; Iordanskaya, I. V.; Kolomiets, O. L.; Bogdanov, Yu. F.
Abstract: Expression and inheritance of the sy18 mutation causing impairment of synapsis homology were studied. It was established that the abnormal phenotype is determined by a recessive allele of the sy18 gene. Univalents and multivalents are observed in homozygotes for this mutant allele. According to the electron microscopic analysis of synaptonemal complexes in mutants, homologous synapsis occurs together with nonhomologous synapsis. The sy18 gene was found to have no allelism with asynaptic genes sy1 and sy9 and with genes sy10 and sy19 causing, like sy18, disturbances in synapsis homology.
Subjects: RYE; GENETIC mutation; CELL nuclei; CELL division; ALLELES
Publication: Russian Journal of Genetics, 2009, Vol 45, Issue 11, p1385
ISSN: 1022-7954
Publication type: Academic Journal
DOI: 10.1134/S1022795409110131

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Impairment of homologous chromosome synapsis in meiosis in rye Secale cereale L. Caused by a recessive mutation of the sy18 gene.