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Titolo:
Identification and characterization of a novel locus controlling early fruit development in tomato
Autore:
van der Knaap, E; Tanksley, SD;
Indirizzi:
Cornell Univ, Dept Plant Breeding & Biometry, Ithaca, NY 14853 USA CornellUniv Ithaca NY USA 14853 reeding & Biometry, Ithaca, NY 14853 USA
Titolo Testata:
THEORETICAL AND APPLIED GENETICS
fascicolo: 2-3, volume: 103, anno: 2001,
pagine: 353 - 358
SICI:
0040-5752(200108)103:2-3<353:IACOAN>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
SHAPE; SIZE;
Keywords:
tomato; fruit shape; development; mapping; QTL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Tanksley, SD Cornell Univ, Dept Plant Breeding & Biometry, 245 Emerson Hall, Ithaca, NY14853 USA Cornell Univ 245 Emerson Hall Ithaca NY USA 14853 NY14853 USA
Citazione:
E. van der Knaap e S.D. Tanksley, "Identification and characterization of a novel locus controlling early fruit development in tomato", THEOR A GEN, 103(2-3), 2001, pp. 353-358

Abstract

Cultivated tomatoes (Lycopersicon esculentum) encompass a wide range of fruit size and shape variants. This variation provides the basis for dissecting the genetic and molecular pathways of ovary and fruit development. One fruit shape variant is displayed by the cultivar Sun 1642 (TA491). TA491 hasan elongated fruit phenotype, while the wild relative L. pimpinellifolium LA1589 produces fruit that are nearly perfect spheres, a shape typical of wild tomatoes. Developmental studies indicated that the differences in fruitshape between TA491 and LA1589 are determined by events occurring immediately after pollination and extending to 14 days post-pollination. Quantitative trait mapping revealed a single major locus on chromosome 7 (named sun) to be responsible for the differential development of TA491 and LA1589 fruit. Other fruit shape loci characterized in tomato (e.g. fs8.1 and ovate) exert their effects before anthesis and early in ovary development. sun is the first major locus identified in tomato controlling fruit shape through post-pollination events.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 22:44:30