Release of multiple virus and bruchid resistant Mesoamerican bean germplasm lines PR1303‐129 and PR1743‐44

Author:

Beaver James S.1ORCID,González Abiezer1,Mateo Bernardo2,Lutz Graciela Godoy2,Miranda Angela3,Rosas Juan Carlos4,Porch Timothy G.5

Affiliation:

1. Department of Agroenvironmental Science University of Puerto Rico Mayagüez Puerto Rico 00680‐9000 USA

2. Instituto Dominicano de Investigaciones Agropecuarias y Forestales San Juan de la Maguana Dominican Republic

3. Instituto de Ciencia y Tecnología Agrícola Villanueva Guatemala

4. Zamorano University Tegucigalpa Honduras

5. USDA–ARS Tropical Agriculture Research Station Mayagüez Puerto Rico 00680 USA

Abstract

AbstractPR1303‐129 (Reg. no. GP‐317, PI 702998) and PR1743‐44 (Reg. no. GP‐318, PI 702999) are multiple virus‐ and bruchid‐resistant common bean (Phaseolus vulgaris L.) germplasm lines developed and released cooperatively by the University of Puerto Rico Agricultural Experiment Station, the USDA‐ARS, the Instituto Dominicano de Investigaciones Agropecuarias y Forestales, the Instituto de Ciencia y Tecnología Agrícola, and Zamorano University. The black bean PR1303‐129 and small dark red bean PR1743‐44 combine resistance to Bean common mosaic virus (BCMV), Bean common mosaic necrosis virus (BCMNV), Bean golden yellow mosaic virus (BGYMV) and the common bean weevil [Acanthoscelides obtectus (Say)] with partial resistance to the Mexican bean weevil [Zabrotes subfasciatus (Boheman)]. Marker‐assisted selection was used to identify the presence of the bgm‐1 gene and the SW12 quantitative trait locus (QTL) for BGYMV resistance and the I and bc‐3 genes for resistance to BCMV and BCMNV. The parents of PR1303‐129 and PR1743‐44 were reported to possess the I gene for resistance to BCMV. Greenhouse inoculations were used to confirm the presence of the bc‐3 gene. Lines were screened in the laboratory and field for resistance to bruchids. Mean seed yields of PR1303‐129 and PR1743‐44 in six trials conducted in Puerto Rico were comparable to the check cultivar ‘Verano’. The release of these germplasm lines should contribute to the development of Mesoamerican cultivars for Central America and the Caribbean with enhanced levels of resistance to viral diseases and pests.

Publisher

Wiley

Subject

Genetics,Agronomy and Crop Science

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