Production and cytogenetic analysis of triticum aestivum l.× triticum timopheevii zhuk. hybrids, amphiploids and backcross progenies

M. Farshadfar, E. Farshadfar, M. Molnár-Láng, J. Sutka

Research output: Article

Abstract

Triticum timoplteevii and Triticum araralicttm × wheat hybrids were produced with three cultivated wheat varieties, Mv 9, Mv 15 and Amor, and one wheat line, Mv 9 krl, to develop alien addition and translocation lines with the aim of ransferring disease resistance into cultivated wheat. The reciprocal crosses were carried out in all combinations. The morphology of the F 1 spikes in most combinations was an intermediate hybrid form, while in some combinations other forms such as square head, awned or awnless were observed. The hybrids showed good vegetative growth and good tillering ability. The number of mitotic chromosomes in all F1 hybrids was 35, and the number of meiotic chromosomes, taking into account the number of fragments, was 35 as well. The chromosome pairing of the F1 hybrids fitted the expected values. The mitotic chromosome number of the amphiploid was 70 and chromosome pairing was 5.881 + 8.4211(rod) + 21.14 11(ring) + 1.511 + 0.02Telo + 0.05 Fragment. The chiasma frequency was 53.70. Backcross progenies with 43 and 44 chromosomes were produced, but he meiotic pairing in these lines did not confirm the assumption that these were monosomic and disomic alien addition lines. Further studies are in progress to identify which chromosomes of T. timoplteevii are present in these lines.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalActa Agronomica Hungarica
Volume47
Issue number1
Publication statusPublished - 1999

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Triticum timopheevii
cytogenetic analysis
Triticum aestivum
chromosomes
wheat
chromosome pairing
Triticum
translocation lines
monosomics
disomics
crossing over
reciprocal crosses
tillering
chromosome number
vegetative growth
disease resistance

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

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title = "Production and cytogenetic analysis of triticum aestivum l.× triticum timopheevii zhuk. hybrids, amphiploids and backcross progenies",
abstract = "Triticum timoplteevii and Triticum araralicttm × wheat hybrids were produced with three cultivated wheat varieties, Mv 9, Mv 15 and Amor, and one wheat line, Mv 9 krl, to develop alien addition and translocation lines with the aim of ransferring disease resistance into cultivated wheat. The reciprocal crosses were carried out in all combinations. The morphology of the F 1 spikes in most combinations was an intermediate hybrid form, while in some combinations other forms such as square head, awned or awnless were observed. The hybrids showed good vegetative growth and good tillering ability. The number of mitotic chromosomes in all F1 hybrids was 35, and the number of meiotic chromosomes, taking into account the number of fragments, was 35 as well. The chromosome pairing of the F1 hybrids fitted the expected values. The mitotic chromosome number of the amphiploid was 70 and chromosome pairing was 5.881 + 8.4211(rod) + 21.14 11(ring) + 1.511 + 0.02Telo + 0.05 Fragment. The chiasma frequency was 53.70. Backcross progenies with 43 and 44 chromosomes were produced, but he meiotic pairing in these lines did not confirm the assumption that these were monosomic and disomic alien addition lines. Further studies are in progress to identify which chromosomes of T. timoplteevii are present in these lines.",
keywords = "Interspecific hybridization, Meiosis, Triticum aestivum, Triticum timoplteevii",
author = "M. Farshadfar and E. Farshadfar and M. Moln{\'a}r-L{\'a}ng and J. Sutka",
year = "1999",
language = "English",
volume = "47",
pages = "27--32",
journal = "Acta Agronomica Hungarica",
issn = "0238-0161",
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T1 - Production and cytogenetic analysis of triticum aestivum l.× triticum timopheevii zhuk. hybrids, amphiploids and backcross progenies

AU - Farshadfar, M.

AU - Farshadfar, E.

AU - Molnár-Láng, M.

AU - Sutka, J.

PY - 1999

Y1 - 1999

N2 - Triticum timoplteevii and Triticum araralicttm × wheat hybrids were produced with three cultivated wheat varieties, Mv 9, Mv 15 and Amor, and one wheat line, Mv 9 krl, to develop alien addition and translocation lines with the aim of ransferring disease resistance into cultivated wheat. The reciprocal crosses were carried out in all combinations. The morphology of the F 1 spikes in most combinations was an intermediate hybrid form, while in some combinations other forms such as square head, awned or awnless were observed. The hybrids showed good vegetative growth and good tillering ability. The number of mitotic chromosomes in all F1 hybrids was 35, and the number of meiotic chromosomes, taking into account the number of fragments, was 35 as well. The chromosome pairing of the F1 hybrids fitted the expected values. The mitotic chromosome number of the amphiploid was 70 and chromosome pairing was 5.881 + 8.4211(rod) + 21.14 11(ring) + 1.511 + 0.02Telo + 0.05 Fragment. The chiasma frequency was 53.70. Backcross progenies with 43 and 44 chromosomes were produced, but he meiotic pairing in these lines did not confirm the assumption that these were monosomic and disomic alien addition lines. Further studies are in progress to identify which chromosomes of T. timoplteevii are present in these lines.

AB - Triticum timoplteevii and Triticum araralicttm × wheat hybrids were produced with three cultivated wheat varieties, Mv 9, Mv 15 and Amor, and one wheat line, Mv 9 krl, to develop alien addition and translocation lines with the aim of ransferring disease resistance into cultivated wheat. The reciprocal crosses were carried out in all combinations. The morphology of the F 1 spikes in most combinations was an intermediate hybrid form, while in some combinations other forms such as square head, awned or awnless were observed. The hybrids showed good vegetative growth and good tillering ability. The number of mitotic chromosomes in all F1 hybrids was 35, and the number of meiotic chromosomes, taking into account the number of fragments, was 35 as well. The chromosome pairing of the F1 hybrids fitted the expected values. The mitotic chromosome number of the amphiploid was 70 and chromosome pairing was 5.881 + 8.4211(rod) + 21.14 11(ring) + 1.511 + 0.02Telo + 0.05 Fragment. The chiasma frequency was 53.70. Backcross progenies with 43 and 44 chromosomes were produced, but he meiotic pairing in these lines did not confirm the assumption that these were monosomic and disomic alien addition lines. Further studies are in progress to identify which chromosomes of T. timoplteevii are present in these lines.

KW - Interspecific hybridization

KW - Meiosis

KW - Triticum aestivum

KW - Triticum timoplteevii

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