Development of two sequence-specific PCR markers linked to the le gene that reduces pod shattering in narrow-leafed Lupin (Lupinus angustifolius L.)
Genet. mol. biol
; 30(3): 623-629, 2007. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-460081
Biblioteca responsável:
BR1.1
ABSTRACT
Wild types of narrow-leaf lupin (Lupinus angustifolius L.) have seed pods that shatter upon maturity, leading to the loss of their seeds before or during the harvest process. Two recessive genes have been incorporated into domesticated cultivars of this species to maximize harvest-ability of the produce. One of these genes is called lentus (le). Two microsatellite - anchored fragment length polymorphism (MFLP) candidate markers were identified as closely linked to the le gene in a recombinant inbred line (RIL) population derived from a domesticated x wild type cross. The candidate MFLP markers were isolated from the gel, re-amplified by PCR, cloned and sequenced. The MFLP polymorphisms were converted into sequence-specific PCR-based markers. Linkage analysis by MapManager indicated that one of the markers, LeM1, was 2.6 centiMorgans (cM) and the other, LeM2, was 1.3 cM from the gene, with both being on the same side. The correlation between the marker genotype and the plant phenotype for the le gene is 95 percent for the Australian cultivars, and approximately 36 percent on wild types tested. These markers may be useful in marker assisted selection for the le gene when introgressing wild material into lupin breeding programs.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Idioma:
Inglês
Revista:
Genet. mol. biol
Assunto da revista:
Genética
Ano de publicação:
2007
Tipo de documento:
Artigo
País de afiliação:
Austrália
Instituição/País de afiliação:
Department of Agriculture and Food/AU
/
The University of Western Australia/AU