title: RFLP mapping of the barley homeotic mutant lax-a.
abstract: The lax-a homeotic mutant of barley has flowers in which lodicules are replaced by stamens (giving five stamens per flower). RFLP mapping of an F2 population from a Bonus lax-a (1) x H. spontaneum cross showed that the mutation was on the short arm of chromosome 7(5H), closely linked to the centromere. An additional F2 population was used to show that the lax-a mutation gave the five-stamen phenotype in all flowers of 6-rowed spikes and that hoods were elevated and reduced in size in lax-a/Hooded double-mutant plants.
authors.affiliation: John Innes Centre, Norwich Research Park, NR4 7UH, Colney, Norwich, UK.
authors.forename: D A
authors.initials: DA
authors.lastname: Laurie
authors.forename: N
authors.initials: N
authors.lastname: Pratchett
authors.forename: R L
authors.initials: RL
authors.lastname: Allen
authors.forename: S S
authors.initials: SS
authors.lastname: Hantke