Cytogenetic instability among the vegetative progenies of A. repens cv. Purdue somaclones

H. M. Tárczy, G. Gyulai, J. Janovszky, E. Kiss, L. E. Heszky

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Abstract

The distribution of mitotic chromosome numbers and changes in the meiotic chromosome pairing in the vegetative progenies of Agropyron repens cv Purdue somaclones were analyzed. Mitotic chromosome variability showed an increase at both cell (SC1-3 somaclones) and plant (SC2) level. Nevertheless, from the progenies of the somaclone SC2, a stable hipoploid clone with a chromosome number of 2n = 38 was selected. The numbers of aneuploid cells in the root tips of vegetative clones also showed an increase. In the analysis of meiotic chromosome pairing, a shift towards the appearance of multivalents (quadrivalents, hexavalents, octovalents) was observed.

Original languageEnglish
Pages (from-to)267-273
Number of pages7
JournalCereal Research Communications
Volume24
Issue number3
Publication statusPublished - Jan 1 1996

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Keywords

  • homogenity test
  • meiosis
  • mitosis
  • somaclone
  • vegetative progeny

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics

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