Genetic variation for waxy proteins and amylose content in Spanish spelt wheat (Triticum spelta L.)
Autor
Guzmán, Carlos
Caballero, Leonor
Moral, Ana
Álvarez, Juan B.
Editor
SpringerFecha
2010Materia
Amylose contentGenetic resources
Starch
Waxy proteins
METS:
Mostrar el registro METSPREMIS:
Mostrar el registro PREMISMetadatos
Mostrar el registro completo del ítemResumen
Spelt wheat is a neglected crop that could be used in the quality breeding of modern common wheat. One important aspect of this quality is the starch composition which is related to the waxy proteins. A collection of 420 accessions of Spanish spelt wheat was analysed for waxy protein composition by SDS–PAGE. Polymorphism was found in the three waxy proteins, detecting differences both in size and in activity, and a new waxy allele (Wx-D1g) was identified. Seed amylose content was also determined and significant differences were detected among the different allelic combinations. In general, the accessions carrying one or two waxy null alleles showed less amylose content. The variation found could be used to enlarge the genetic pool of common wheat, or to develop lines of spelt with different levels of amylose content.