Inheritance and Nature of Resistance in Beans to<i>Fusarium oxysporum</i>f. sp.<i>phaseoli</i>

Ribeiro, Raul de Lucena Duarte; Hagedorn, D. J.

doi:10.1094/phyto-69-859

Cited by 21 publications

(16 citation statements)

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“…These results and those of Ribeiro and Hagedorn (1979) indicate that breeding programs can easily incorporate single dominant genes for resistance to different races of Fop into cultivars where Fusarium wilt is a problem. Although single genes can be integrated rapidly into a new cultivar, they are generally not considered to be as durable as quantitative resistance controlled by many genes.…”

Section: Resultsmentioning

confidence: 68%

“…The dichotomous reactions seen in both the F 2 and F 3 further support the hypothesis that one gene controls resistance to Fop race 4 among these parents representative of race Durango. Ribeiro and Hagedorn (1979) designated the gene controlling resistance to the Brazilian and South Carolina races of Fop as Fop1 and Fop2 , respectively. Because Woo et al (1996) concluded that isolates of Fop from Colorado (race 4) and South Carolina (race 1) were distinct races, genes controlling resistance to the Colorado and South Carolina race require different designations.…”

Section: Resultsmentioning

confidence: 99%

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Inheritance of Resistance to Fusarium Wilt in Two Common Bean Races

et al. 2000

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Fusarium wilt in common bean (Phaseolus vulgaris L.) caused by Fusarium oxysporum Schlechtend. Fr. forma specialis phaseoli Kendrick and Snyder (Fop) occurs worldwide and can result in severe yield loss. Because cultural methods to control disease loss are not completely effective, cultivars with genetic resistance are needed. The objectives of this study were to determine whether genetic control of resistance to Fop race 4 differs between germplasm of races Durango and Mesoamerica of common bean and to estimate heritability of resistance found in race Mesoamerica. Resistant and susceptible lines of races Durango and Mesoamerica were crossed within races to produce F2 and F3 progeny. Reaction to Fop was evaluated using a root‐dip inoculation method and scored using a CIAT disease severity scale from one to nine. F2 populations derived from race Durango parents showed a 3:1 (resistant/susceptible) plant segregation ratio, and F3 progeny tests confirmed that resistance was controlled by a single dominant gene. F2 data from crosses between parents of race Mesoamerica had continuous distributions for reaction to Fop race 4, suggesting polygenic control of resistance. The narrow‐sense heritability estimate derived from midparent–offspring regression of 10 F2 populations derived from Mesoamerican parents was 0.85 ± 0.34, and realized heritability estimates ranged from 0.25 ± 0.19 to 0.60 ± 0.16 among five populations. The heritability estimates as well as the continuous variation in disease severity observed support the hypothesis that resistance to Fop race 4 among parents of race Mesoamerican is polygenic.

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Section: Resultsmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 99%

Inheritance of Resistance to Fusarium Wilt in Two Common Bean Races

et al. 2000

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“…There are some reports of ge- netic control of resistance; the first was probably the study of Ribeiro & Hagedorn (1979), who identified the presence of only one gene with a dominant allele conferring resistance. More recently, other results were reported for the genetic control of resistance (Salgado et al, 1995;Cross et al, 2000;Brick et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Inheritance of resistance to Fusarium oxysporum f. sp. phaseoli Brazilian race 2 in common bean

Pereira

Ramalho²,

Abreu

2009

Sci. agric. (Piracicaba, Braz.)

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Aiming to obtain information concerning the genetic control of the resistance of the bean (Phaseolus vulgaris L.) to the fungus Fusarium oxysporum f. sp. phaseoli, six crosses involving three resistant lines (Carioca MG, Esal 583 and Esal 566) and four susceptible to the fungus (Carioca, CNFC 10443, Uirapuru and Esal 522) were developed. The parental lines, the controls (Carioca MG and Carioca) and the F 1 , F 2 and F 3 generations were evaluated for reaction to Fusarium. For inoculation, root cuttings were immersed in a spore suspension. The evaluations were performed at 21 days after inoculation, by scale of notes ranging from 1.0, to 9.0 and genetic and phenotypic parameters were estimated. The heritability in the narrow sense ranged from 0.34 to 0.42 and in the broad sense of 0.76 to 0.97, showing that selection should be easy, since efficient inoculation and selection methods are used. The average degree of dominance was around 1.0 indicating the presence of dominance in the control of the character, although additive effects are also expressive.

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“…Genetic resistance to specific races of Fop is controlled by both single genes (Ribeiro and Hagedorn, 1979b;Salgado et al, 1995;Cross et al, 2000) and quantitatively (Cross et al, 2000;Fall et al, 2001). Cross et al (2000) reported that a single dominant gene controlled resistance to race 4 Fop found in pinto cultivars Fisher (Fisher et al, 1995) and Sierra (Kelly et al, 1990).…”

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confidence: 99%

Reaction to Three Races of Fusarium Wilt in the Phaseolus vulgaris Core Collection

et al. 2006

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Seven races of Fusarium oxysporum f. sp. phaseoli Kendrick and Snyder (Fop) cause Fusarium wilt (FW) disease of common bean (Phaseolus vulgaris L.). FW occurs worldwide and has recently become a serious disease in the central and western USA. The objectives of this research were to identify new sources of resistance to Fop, characterize the Central/South American (CA/SA) Phaseolus Core Collection for reaction to races 1, 4, and 5 Fop and determine if a previously reported sequence characterized amplified region (SCAR) molecular marker would be useful to identify resistance among accessions that make up the CA/SA Core Collection. Seedlings from the CA/SA Core Collection were screened for reaction by a root dip inoculation procedure. Among accessions evaluated for reaction to race 1 Fop, 21 were resistant, 47 intermediate, and 126 susceptible. Fifteen accessions were resistant to race 4, 61 intermediate, and 114 were susceptible. Nine accessions were resistant to both races 1 and 4, and five of the nine (PI 207373, PI 307802, PI 308908, PI 309877, PI 310842) were also resistant to race 5 Fop. All accessions resistant to races 1, 4, and 5 of Fop were characterized as Middle American, which suggests that resistance to multiple races of Fop should be more prevalent in germplasm from Middle America. The SCAR marker previously developed to identify a quantitative trait locus (QTL) associated with resistance to Fop was not associated with resistance in the Core Collection.

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Inheritance and Nature of Resistance in Beans toFusarium oxysporumf. sp.phaseoli

Cited by 21 publications

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Inheritance of Resistance to Fusarium Wilt in Two Common Bean Races

Inheritance of Resistance to Fusarium Wilt in Two Common Bean Races

Inheritance of resistance to Fusarium oxysporum f. sp. phaseoli Brazilian race 2 in common bean

Reaction to Three Races of Fusarium Wilt in the Phaseolus vulgaris Core Collection

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