Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Complete characterization of wheat-alien metaphase-I pairing in interspecific hybrids between durum wheat (Triticum turgidum L.) and jointed goatgrass (Aegilops cylindrica Host).
Year:2009
Research Areas
  • Genetics
Information
Abstract
The pattern of homoeologous metaphase I (MI) pairing has been fully characterized in durum wheat × Aegilops cylindrica hybrids (2n = 4x = 28, ABCcDc) 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 Dc genome of jointed goatgrass. These findings are discussed in relation to the potential of genetic transference between wheat crops and its weedy relative. It can also be highlighted that inactivation of Ph1 provoked a relatively higher promotion of MI associations involving B genome.
International
Si
JCR
Si
Title
THEORETICAL AND APPLIED GENETICS
ISBN
0040-5752
Impact factor JCR
3,49
Impact info
Volume
118
Journal number
0
From page
1609
To page
1616
Month
ENERO
Ranking
Participants
  • Participante: Marta CIFUENTES
  • Autor: Maria Elena Benavente Barzana (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Mejora Genética de plantas
  • Departamento: Biotecnología
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