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Fusarium oxysporum Schlectend. Fr. f. sp. phaseoli J.B. Kendrick and W.C. Snyder (FOP) is a vascular pathogen that causes Fusarium wilt in common bean (Phaseolus vulgaris L.). This disease is an increasing problem in the western U.S., and exploitation of genetic resistance is considered the most feasible control method. The objective of this study was to detect quantitative trait loci (QTL) for Fusarium wilt resistance in a population derived from an interracial cross between FOP-susceptible Belneb RR-1 (race Durango) x FOP-resistant A55 (race Mesoamerica). Seventy-six F6-derived recombinant inbred lines (RILs) were screened for disease severity in greenhouse inoculations and rated on a scale of 1 (resistant) to 9 (susceptible). The phenotypic data were compared to existing random amplified polymorphic DNA (RAPD) marker data using single-factor analysis of variance. Marker U20.750 on linkage group (LG) 10 accounted for 63.5% of the phenotypic variance for this trait. Lines exhibiting the A55 banding pattern at this locus had disease severity scores that averaged 3.6 points lower than lines with the Belneb RR-1 pattern. Two additional markers, AD4.450 on LG 3 and K10.700 on LG 11, were significant (P < 0.01) in single-factor analysis of variance, but only marker U20.750 on LG 10 remained significant when composite interval mapping (CIM) was conducted. The tight linkage between the putative QTL and U20.750, as indicated by CIM, makes this marker a promising candidate for conversion to a sequence-characterized amplified region (SCAR) for use in marker-assisted selection in Fusarium wilt resistant common bean cultivar development.

Titel:	Detection and mapping of a major locus for Fusarium wilt resistance in common bean
Autor/in / Beteiligte Person:	FALL, A. L ; BYRNE, P. F ; JUNG, G ; COYNE, D. P ; BRICK, M. A ; SCHWARTZ, H. F
Link:	Full Text Finder (Volltext) View record from PASCAL Archive
Zeitschrift:	Crop science, Jg. 41 (2001), Heft 5, S. 1494-1498
Veröffentlichung:	Madison, WI: Crop Science Society of America, 2001
Medientyp:	academicJournal
Umfang:	print, 31 ref
ISSN:	0011-183X (print)
Schlagwort:	Agronomy, agriculture, phytopathology Agronomie, agriculture, phytopathologie Genetics Génétique Sciences biologiques et medicales Biological and medical sciences Sciences biologiques fondamentales et appliquees. Psychologie Fundamental and applied biological sciences. Psychology Agronomie. Sciences du sol et productions vegetales Agronomy. Soil science and plant productions Génétique et amélioration des plantes d'intérêt économique Genetics and breeding of economic plants Sélection variétale. Amélioration spéciale, objectifs d'amélioration Varietal selection. Specialized plant breeding, plant breeding aims Résistance aux organismes nuisibles Pest resistance Agents phytopathogènes Plant pathogens Angiospermae Dicotyledones Fungi Imperfecti Fungi Leguminosae Légumineuse grain Grain legume Leguminosa grano Marqueur génétique Genetic marker Marcador genético Phytopathogène Plant pathogen Fitopatógeno Sensibilité résistance Sensitivity resistance Sensibilidad resistencia Spermatophyta Thallophyta Amélioration génétique Genetic improvement Enriquecimiento genético Carte génétique Genetic mapping Mapa genético Détection Detection Detección Groupe liaison Linkage group Grupo ligamiento Indice gravité Severity score Indicio gravedad Locus quantitatif Quantitative trait loci Locus cuantitativo Marqueur RAPD Random amplified polymorphic DNA marker Marcador RAPD Marqueur SCAR Sequence characterized amplified region marker Marcador SCAR Phaseolus vulgaris Résistance champignon Fungus resistance Resistencia a los hongos Sélection assistée marqueur Marker assisted selection Selección asistida marcador Fusarium oxysporum f. phaseoli Résistance aux maladies Disease resistance Resistencia a la enfermedad
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Dep. of Soil and Crop Sciences, Colorado State Univ., Ft. Collins, CO 80523, United States ; Dep. of Plant Pathology, Univ. of Wisconsin, Madison, WI 53706, United States ; Dep. of Horticulture, Univ. of Nebraska, Lincoln, NE 68583, United States ; Dep. of Bioagricultural Sciences and Pest Management, Colorado State Univ., Ft. Collins, CO 80523, United States Rights: Copyright 2002 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Agronomy. Soil sciences and vegetal productions

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Detection and mapping of a major locus for Fusarium wilt resistance in common bean