Staff Members - Benha University
Cytological and Molecular studies in some interspecific hybrids resulted from crossing between tetraploid and hexaploid wheat
4rd International Conference on Biotechnology Applications in Agriculture (ICBAA), Benha University, Moshtohor and Hurghada , 4-7 April 2018 , Egypt • 2018
Publication Information
Authors
4rd International Conference on Biotechnology Applications in Agriculture (ICBAA), Benha University,
Moshtohor and Hurghada , 4-7 April 2018 , Egypt
Keywords
wide hybridization, Triticum, SDS-PAGE, Fraibilin, Laggards, meiotic anomalies, tetraploid wheat,
bread wheat.
Journal
4rd International Conference on Biotechnology Applications in Agriculture (ICBAA), Benha University, Moshtohor and Hurghada , 4-7 April 2018 , Egypt
Publisher
Faculty of Agriculture, Benha University, Egypt
Volume
Not Available
Issue
Not Available
Pages
1-4
publication.type
Local
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
Wheat relatives are rich sources of beneficial genes that are capable to change the situation of the wheat
strains. The present study attempted to cross three tetraploid wheat strains as male parents with five strains of
hexaploid bread wheat to understand the behavior of hybrids in relation to cytology, Scanning Electron
Microscopy for wheat grains and SDS-PAGE (Friabilin). Scanning electron microscopy of dry grains revealed
morphological details of grain surface structure. The grains of strain 20 cultivar showed narrower size and
hairless area than the grains of strain 9 or 17 or 6. The hairy end of the strain 17 grains is broader than the same
end (hairy) of the strain 21. The hairy end of the strain 24 is completely disappeared from grains. All the
produced six crosses were containing hairy ends as an indicator for the inheritance of this character. Probably
complete dominance of the gene controlling the brush area in the wheat grain. Various degrees of chromosome
anomalies were seen with all the hybrids between T. durum and T. aestivum. D genome from T. aestivum could
enhance more lagging chromosomes rather than genomes A and B of cultivated species. The main observed
abnormalities in the produced crosses are the laggard formation. Fraibilin clearly associated with genetic
proximity of the species, which characterized themselves by maintaining the genome homeology.
strains. The present study attempted to cross three tetraploid wheat strains as male parents with five strains of
hexaploid bread wheat to understand the behavior of hybrids in relation to cytology, Scanning Electron
Microscopy for wheat grains and SDS-PAGE (Friabilin). Scanning electron microscopy of dry grains revealed
morphological details of grain surface structure. The grains of strain 20 cultivar showed narrower size and
hairless area than the grains of strain 9 or 17 or 6. The hairy end of the strain 17 grains is broader than the same
end (hairy) of the strain 21. The hairy end of the strain 24 is completely disappeared from grains. All the
produced six crosses were containing hairy ends as an indicator for the inheritance of this character. Probably
complete dominance of the gene controlling the brush area in the wheat grain. Various degrees of chromosome
anomalies were seen with all the hybrids between T. durum and T. aestivum. D genome from T. aestivum could
enhance more lagging chromosomes rather than genomes A and B of cultivated species. The main observed
abnormalities in the produced crosses are the laggard formation. Fraibilin clearly associated with genetic
proximity of the species, which characterized themselves by maintaining the genome homeology.