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The bean pod weevil (Apion godmani Wagner) is a serious insect pest of common beans (Phaseolus vulgaris L.) grown in Mexico and Central America that is best controlled by host-plant resistance available in Durango or Jalisco genotypes such as J-117. Given unreliable infestation by the insect, the...


Blair, Matthew W.Muñoz, J.Garza García, RamónCardona Mejía, César[Molecular mapping of genes for resistance to the bean pod weevil (Apion gomani Wagner) in common bean]Molecular mapping of genes for resistance to the bean pod weevil (Apion gomani Wagner) in common bean

Cardona Mejía, CésarSotelo, G.[Desarrollo y validación de metodologías para la infestación controlada de salivazo en híbridos de Brachiaria]Desarrollo y validación de metodologías para la infestación controlada de salivazo en híbridos de Brachiaria
Blair, Matthew W.Cardona Mejía, CésarQuintero, C.Garza García, RamónWeeden, NSingh, Shree P.[Development of scar marker for common bean resistance to the bean pod weevil (Apion godmani Wagner)]Development of scar marker for common bean resistance to the bean pod weevil (Apion godmani Wagner)

The deployment in common beans (Phaseolus vulgaris L.) of arcelin-based bruchid resistance could help reduce post-harvest storage losses to the Mexican bean weevil [(Zabrotes subfasciatus (Boheman)]. Arcelin is a member of the arcelin-phytohemagglutinin-?-amylase inhibitor (APA) family of seed pr...


Blair, Matthew W.Muñoz, C.Buendía Castellanos, Hector F.Flower, JBueno Mondragon, J.M.Cardona Mejía, César[Genetic mapping of microsatellite markers around the arcelin bruchid resistance locus in common bean]Genetic mapping of microsatellite markers around the arcelin bruchid resistance locus in common bean
Castro, U.Cardona Mejía, CésarVera Graziano, JMiles, John W.Garza García, Ramón[Identificación morfológica y molecular de Prosapia simulans (Walker) (Hemiptera: Cercopidae), y selección y mecanismos de resistencia este salivazo en híbridos de brachiaria = Morphological and molecular identification of Prosapia simulans (Walker) (Hemiptera: Cercopidae), and screening and mechanisms of resistance to this spittlebug in Brachiaria hybrids]Identificación morfológica y molecular de Prosapia simulans (Walker) (Hemiptera: Cercopidae), y selección y mecanismos de resistencia este salivazo en híbridos de brachiaria = Morphological and molecular identification of Prosapia simulans (Walker) (Hemiptera: Cercopidae), and screening and mechanisms of resistance to this spittlebug in Brachiaria hybrids

Both nymphal and adult spittlebugs (Hemiptera: Cercopidae) cause serious economic damage to susceptible brachiariagrass [genus Biachiaria (Trin.) Griseb], pastures in tropical America. Both life stages are xylem feeders: nymphs feed primarily on roots and stems, whereas the adults feed mainly on ...


Cardona Mejía, CésarMiles, John W.Zuniga, GSotelo, G.[Independence of Resistance in Brachiaria spp. to Nymphs or to Adult Spittlebugs (Hemiptera: Cercopidae): Implications for Breeding for Resistance]Independence of Resistance in Brachiaria spp. to Nymphs or to Adult Spittlebugs (Hemiptera: Cercopidae): Implications for Breeding for Resistance

A reproducible Agrobacterium tumefaciens-mediated genetic transformation method that delivers fertile and morphologically normal transgenic plants was developed for cultivated tepary bean (Phaseolus acutifolius L. Gray). Factors contributing to higher transformation efficiencies include (1) a low...


Zambre, MGoossens, ACardona Mejía, CésarMontagu, M. vanTerryn, NAngenon, G[A reproducible genetic transformation system for cultivated Phaseolus acutifolius (tepary bean) and its use to assess the role of arcelins in resistance to the Mexican bean weevil]A reproducible genetic transformation system for cultivated Phaseolus acutifolius (tepary bean) and its use to assess the role of arcelins in resistance to the Mexican bean weevil

Spittlebugs (Homoptera: Cercopidae) are important pests of forage grasses in the genus Brachiaria (Trin.) Griseb. throughout the neotropics. Results of recurrent selection on resistance to spittlebugs in a synthetic brachiariagrass population are reported. The population was synthesized by recomb...


Miles, John W.Cardona Mejía, CésarSotelo, Guillermo[Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species]Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species

Background: An interesting seed protein family with a role in preventing insect herbivory is the multi-gene, APA family encoding the ?-amylase inhibitor, phytohemagglutinin and arcelin proteins of common bean (Phaseolus vulgaris). Variability for this gene family exists and has been exploited to ...


Blair, Matthew W.Prieto, SDíaz, Lucy MilenaBuendía Castellanos, Hector F.Cardona Mejía, César[Linkage disequilibrium at the APA insecticidal seed protein locus of common bean (Phaseolus vulgaris L.)]Linkage disequilibrium at the APA insecticidal seed protein locus of common bean (Phaseolus vulgaris L.)

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