Interaction of barley tweaky spike and laxatum mutations in F1 hybrids

  • V. Vaitkūnienė
  • A. Varnaitė
  • V. Rančelis

Anotacija

Only few genes are known to regulate the development of flower lodicules in Poacea plants. Among them are lax-a and tw. Ectopic expression of both mutant genes gives conversion of lodicules to stamens. By a comparative examination of the action of lax-a and tw genes on ear and flower structure and especially by a complementation test it has been proven that tw and lax a are in different loci. F1 hybrids between various lax a alleles and tw have a normal structure of flowers. Two alleles from Nordic Gene Bank have a stronger expression on flower structure in heterozygous state, but that phenomenon has been displayed only in 10% of the flowers tested. Keywords: complementation, lodicule development, genes in different loci, different expression of alleles, barley
Publikuotas
2004-10-01
Skyrius
Genetics