C-banding analysis on wild Emmer (Triticum dicoccoides Korn) strains with and without spontaneous reciprocal translocations

Shin Taketa, T. Kawahara

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

C-banding polymorphism was analyzed in eight strains of wild Emmer, Triticum dicoccoides Korn, which included six translocation homozygotes reported previously. Polymorphisms were detected in all of the strains examined, and the breakpoints of five spontaneous translocations were successfully identified by C-bands. Of the eight breakpoints that could be precisely identified, one was located in the centromeric region while the remaining seven were located in proximal to distal euchromatic regions. The two breakpoints of one translocation could only be approximately localized to proximal regions due to the scarcity of C-bands. The present results are in contrast with those observed on T. araraticum, another wild tetraploid wheat belonging to the Timopheevi group, in which most of the breakpoints were located in centromeric regions. In T. dicoccoides, the six translocation chromosome types were derived from the standard karyotype primarily by a mechanism other than centric breakage-fusion.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalTheoretical And Applied Genetics
Volume92
Issue number2
DOIs
Publication statusPublished - Feb 1996

Fingerprint

Triticum turgidum subsp. dicoccoides
reciprocal translocation
chromosome banding
Triticum
Tetraploidy
Homozygote
Karyotype
genetic polymorphism
Chromosomes
chromosome translocation
homozygosity
karyotyping
tetraploidy
wheat

Keywords

  • C-banding
  • Reciprocal translocation
  • Translocation breakpoint
  • Triticum dicoccoides

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Horticulture
  • Plant Science
  • Genetics
  • Genetics(clinical)

Cite this

C-banding analysis on wild Emmer (Triticum dicoccoides Korn) strains with and without spontaneous reciprocal translocations. / Taketa, Shin; Kawahara, T.

In: Theoretical And Applied Genetics, Vol. 92, No. 2, 02.1996, p. 173-178.

Research output: Contribution to journalArticle

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