Display options
Cite
Sosnikhina SP, Fedotova YS, Smirnov VG, et al. Meiotic mutants of rye Secale cereale L. : I. Synaptic mutant sy-1. Theor Appl Genet. 1992;84(7):979-85doi: 10.1007/BF00227413.
Sosnikhina, S. P., Fedotova, Y. S., Smirnov, V. G., Mikhailova, E. I., Kolomiets, O. L., & Bogdanov, Y. F. (1992). Meiotic mutants of rye Secale cereale L. : I. Synaptic mutant sy-1. TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 84(7), 979-85. https://doi.org/10.1007/BF00227413
Sosnikhina, S P, et al. "Meiotic mutants of rye Secale cereale L. : I. Synaptic mutant sy-1." TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik vol. 84,7 (1992): 979-85. doi: https://doi.org/10.1007/BF00227413
Sosnikhina SP, Fedotova YS, Smirnov VG, Mikhailova EI, Kolomiets OL, Bogdanov YF. Meiotic mutants of rye Secale cereale L. : I. Synaptic mutant sy-1. Theor Appl Genet. 1992 Sep;84(7):979-85. doi: 10.1007/BF00227413. PMID: 24201503.
Copy Download .nbib Format: NLM
Share it on

Theor Appl Genet. 1992 Sep;84(7):979-85. doi: 10.1007/BF00227413.

Meiotic mutants of rye Secale cereale L. : I. Synaptic mutant sy-1.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

S P Sosnikhina, Y S Fedotova, V G Smirnov, E I Mikhailova, O L Kolomiets, Y F Bogdanov

Affiliations

  1. Biological Institute, St. Petersburg State University, St. Petersburg, 199164, Russia.

PMID: 24201503 DOI: 10.1007/BF00227413

Abstract

A mutant form of weedy rye characterized by male and female sterility and having a hereditary block in the chromosome synapsis has been found and described. Genetic analysis has shown the synapsis block to be determined by the recessive allele of a gene designated as sy-1. Electron microscopy of surface-spread microsporocyte nuclei revealed the complete absence of the synaptonemal complex over the whole meiotic prophase I, although the axial cores were perfectly formed by each chromosome. Only univalents were observed at metaphase I, their average number ranging from 13.1 to 14.0 per cell. A precocious distribution of univalents at the poles is observed at metaphase I. All of the later stages of meiosis were irregular and resulted in the formation of abnormal microspores. Thus, the mutant proves to be asynaptic because of the blocked initiation of synapses at prophase I.

References

  1. Int Rev Cytol. 1979;58:247-90 - PubMed
  2. Theor Appl Genet. 1985 Aug;70(5):449-66 - PubMed
  3. Theor Appl Genet. 1984 May;68(1-2):87-93 - PubMed
  4. Theor Appl Genet. 1981 Jul;59(4):197-214 - PubMed

Publication Types