Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Congruence of conventional and molecular studies to locate genes that control flavone synthesis in maize silks
Autore:
Widstrom, NW; Snook, ME;
Indirizzi:
USDA ARS, Crop Genet & Breeding Res Unit, Tifton, GA 31793 USA USDA ARS Tifton GA USA 31793 et & Breeding Res Unit, Tifton, GA 31793 USA USDA ARS, Richard Russell Res Ctr, Athens, GA 30604 USA USDA ARS Athens GA USA 30604 ichard Russell Res Ctr, Athens, GA 30604 USA
Titolo Testata:
PLANT BREEDING
fascicolo: 2, volume: 120, anno: 2001,
pagine: 143 - 147
SICI:
0179-9541(200104)120:2<143:COCAMS>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTITATIVE TRAIT LOCI; CORN-EARWORM ANTIBIOSIS; MAYSIN CONCENTRATION; METABOLIC PATHWAYS; INHERITANCE; MECHANISMS; ANALOGS; INBREDS;
Keywords:
Zea mays; Helicoverpa zea; antibiosis; maysin; QTL; reciprocal translocations;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Widstrom, NW USDA ARS, Crop Genet & Breeding Res Unit, POB 748, Tifton, GA31793 USA USDA ARS POB 748 Tifton GA USA 31793 48, Tifton, GA 31793 USA
Citazione:
N.W. Widstrom e M.E. Snook, "Congruence of conventional and molecular studies to locate genes that control flavone synthesis in maize silks", PLANT BREED, 120(2), 2001, pp. 143-147

Abstract

The presence of maysin, a flavone glycoside, and its analogues in the silks of corn is an important defence against invasion of the ear by corn earworm in the southeastern USA. Three dent maize inbreds with high silk-maysin concentrations were evaluated for chromosomal location of major genes controlling synthesis of three antibiotic chemicals by crossing them to a seriesof waxy-marked chromosome 9 reciprocal translocations. The data indicated that genes for maysin and its analogues are probably present on the short arms of chromosomes 1 and 10, and long arms of chromosomes 5 and 8 for inbred line GT114, the short arms of chromosome 1 and 6, and the long arms of chromosome 5 and 8 for inbred line GE37, and the short arms of chromosomes 1 and 10, and the long arm of chromosome 4 for inbred line SC102. These results are in general agreement with other translocation studies on corn earworm injury to sweet corn inbreds and gene and restriction fragment length polymorphism marker studies to locate quantitative trait loci (QTL) for maysinsynthesis, with the exception that QTL on chromosome 9 have been found to be strongly associated with flavone synthesis. The most significant concordance between conventional and molecular techniques for locating chromosome regions influencing synthesis of antibiotic chemicals from silks of high silk antibiosis sources is found for the short arm of chromosome 1. This region is the most likely one on which to place emphasis during the initial stages of transferring high-maysin silks to elite inbred lines. A chromosome 1marker plus at least one more from any chosen high-maysin inbred source should be sufficient to transfer high maysin silks to other lines. Other markers may be needed for transfer of specific traits when recovering recurrentparent genome types in a backcrossing procedure.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 10:25:30