GrainGenes Reference Report: TAG-118-1609
Reference
TAG-118-1609
Title
Complete characterization of wheat-alien metaphase I pairing in interspecific hybrids between durum wheat (Triticum turgidum L.) and jointed goatgrass (Aegilops cylindrica Host).
Journal
Theoretical and Applied Genetics
Year
2009
Volume
118
Pages
1609-1616
Author
Cifuentes M Benavente E
Abstract
The pattern of homoeologous metaphase I (MI) pairing has been fully characterized in durum wheat x Aegilops cylindrica hybrids (2n = 4x = 28, ABC(c)D(c)) by an in situ hybridization procedure that has permitted individual discrimination of every wheat and wild constituent genome. One of the three hybrid genotypes examined carried the ph1c mutation. In all cases, MI associations between chromosomes of both species represented around two-third of total. Main results from the analysis are as follows (a) the A genome chromosomes are involved in wheat-wild MI pairing more frequently than the B genome partners, irrespective of the alien genome considered; (b) both durum wheat genomes pair preferentially with the D(c) genome of jointed goatgrass. These findings are discussed in relation to the potential of genetic transference between wheat crops and this weedy relative. It can also be highlighted that inactivation of Ph1 provoked a relatively higher promotion of MI associations involving B genome.
External Databases
http://dx.doi.org/10.1007/s00122-009-1009-2
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: TAG-118-1609
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||