Cytomolecular identification of individual wheat-wheat chromosome arm associations in wheat-rye hybrids

M. Megyeri, M. Molnár-Láng, I. Molnár

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Chromosome pairing in the meiotic metaphase I of wheat-rye hybrids has been characterized by sequential genomic and fluorescent in situ hybridization allowing not only the discrimination of wheat and rye chromosomes, but also the identification of the individual wheat and rye chromosome arms involved in the chromosome associations. The majority of associations (93.8%) were observed between the wheat chromosomes. The largest number of wheat-wheat chromosome associations (53%) was detected between the A and D genomes, while the frequency of B-D and A-B associations was significantly lower (32 and 8%, respectively). Among the A-D chromosome associations, pairing between the 3AL and 3DL arms was observed with the highest frequency, while the most frequent of all the chromosome associations (0.113/cell) was found to be the 3DS-3BS. Differences in the pairing frequency of the individual chromosome arms of wheat-rye hybrids have been discussed in relation to the homoeologous relationships between the constituent genomes of hexaploid wheat.

Original languageEnglish
Pages (from-to)128-136
Number of pages9
JournalCytogenetic and Genome Research
Volume139
Issue number2
DOIs
Publication statusPublished - 2013

Fingerprint

Triticum
Chromosomes
Chromosome Pairing
Genome
Secale
Metaphase
Fluorescence In Situ Hybridization

Keywords

  • Chromosome pairing
  • FISH
  • GISH
  • Meiosis
  • Wheat

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)
  • Molecular Biology

Cite this

Cytomolecular identification of individual wheat-wheat chromosome arm associations in wheat-rye hybrids. / Megyeri, M.; Molnár-Láng, M.; Molnár, I.

In: Cytogenetic and Genome Research, Vol. 139, No. 2, 2013, p. 128-136.

Research output: Contribution to journalArticle

@article{6cff633ddb0c44aca9827ff329268902,
title = "Cytomolecular identification of individual wheat-wheat chromosome arm associations in wheat-rye hybrids",
abstract = "Chromosome pairing in the meiotic metaphase I of wheat-rye hybrids has been characterized by sequential genomic and fluorescent in situ hybridization allowing not only the discrimination of wheat and rye chromosomes, but also the identification of the individual wheat and rye chromosome arms involved in the chromosome associations. The majority of associations (93.8{\%}) were observed between the wheat chromosomes. The largest number of wheat-wheat chromosome associations (53{\%}) was detected between the A and D genomes, while the frequency of B-D and A-B associations was significantly lower (32 and 8{\%}, respectively). Among the A-D chromosome associations, pairing between the 3AL and 3DL arms was observed with the highest frequency, while the most frequent of all the chromosome associations (0.113/cell) was found to be the 3DS-3BS. Differences in the pairing frequency of the individual chromosome arms of wheat-rye hybrids have been discussed in relation to the homoeologous relationships between the constituent genomes of hexaploid wheat.",
keywords = "Chromosome pairing, FISH, GISH, Meiosis, Wheat",
author = "M. Megyeri and M. Moln{\'a}r-L{\'a}ng and I. Moln{\'a}r",
year = "2013",
doi = "10.1159/000346047",
language = "English",
volume = "139",
pages = "128--136",
journal = "Cytogenetic and Genome Research",
issn = "1424-8581",
publisher = "S. Karger AG",
number = "2",

}

TY - JOUR

T1 - Cytomolecular identification of individual wheat-wheat chromosome arm associations in wheat-rye hybrids

AU - Megyeri, M.

AU - Molnár-Láng, M.

AU - Molnár, I.

PY - 2013

Y1 - 2013

N2 - Chromosome pairing in the meiotic metaphase I of wheat-rye hybrids has been characterized by sequential genomic and fluorescent in situ hybridization allowing not only the discrimination of wheat and rye chromosomes, but also the identification of the individual wheat and rye chromosome arms involved in the chromosome associations. The majority of associations (93.8%) were observed between the wheat chromosomes. The largest number of wheat-wheat chromosome associations (53%) was detected between the A and D genomes, while the frequency of B-D and A-B associations was significantly lower (32 and 8%, respectively). Among the A-D chromosome associations, pairing between the 3AL and 3DL arms was observed with the highest frequency, while the most frequent of all the chromosome associations (0.113/cell) was found to be the 3DS-3BS. Differences in the pairing frequency of the individual chromosome arms of wheat-rye hybrids have been discussed in relation to the homoeologous relationships between the constituent genomes of hexaploid wheat.

AB - Chromosome pairing in the meiotic metaphase I of wheat-rye hybrids has been characterized by sequential genomic and fluorescent in situ hybridization allowing not only the discrimination of wheat and rye chromosomes, but also the identification of the individual wheat and rye chromosome arms involved in the chromosome associations. The majority of associations (93.8%) were observed between the wheat chromosomes. The largest number of wheat-wheat chromosome associations (53%) was detected between the A and D genomes, while the frequency of B-D and A-B associations was significantly lower (32 and 8%, respectively). Among the A-D chromosome associations, pairing between the 3AL and 3DL arms was observed with the highest frequency, while the most frequent of all the chromosome associations (0.113/cell) was found to be the 3DS-3BS. Differences in the pairing frequency of the individual chromosome arms of wheat-rye hybrids have been discussed in relation to the homoeologous relationships between the constituent genomes of hexaploid wheat.

KW - Chromosome pairing

KW - FISH

KW - GISH

KW - Meiosis

KW - Wheat

UR - http://www.scopus.com/inward/record.url?scp=84873721982&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84873721982&partnerID=8YFLogxK

U2 - 10.1159/000346047

DO - 10.1159/000346047

M3 - Article

C2 - 23306424

AN - SCOPUS:84873721982

VL - 139

SP - 128

EP - 136

JO - Cytogenetic and Genome Research

JF - Cytogenetic and Genome Research

SN - 1424-8581

IS - 2

ER -