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United States Department of Agriculture

Agricultural Research Service

Research Project: Enhanced Disease and Abiotic Stress Resistance in Edible Legumes

Location: Grain Legume Genetics Physiology Research

Title: Breeding lines and host QTL interaction with bacterial strains

Authors
item Viteri, D -
item Trapp, J -
item Cregan, Perry
item Singh, S -
item Miklas, Phillip

Submitted to: Bean Improvement Cooperative Annual Report
Publication Type: Proceedings
Publication Acceptance Date: February 11, 2014
Publication Date: March 1, 2014
Citation: Viteri, D.M., Trapp, J., Cregan, P.B., Singh, S.P., Miklas, P.N. 2014. Breeding lines and host QTL interaction with bacterial strains. Bean Improvement Cooperative Annual Report. 57: 65-66.

Interpretive Summary: Resistance to common bacterial blight (CBB) is controlled by more than 20 QTL (Miklas and Singh, 2007). A QTL on Pv10 linked to SAP6 SCAR markers is derived from common bean. Higher levels of resistance associated with BC420 QTL on Pv06 (Yu et al., 2000) and SU91-CG11 QTL on Pv08 (Pedraza et al., 2007) are derived from tepary bean. The BC420 QTL is linked with undesirable seed coat color (Mutlu et al., 2005; Park et al., 1999) and the SU91 QTL is associated with low yield (O’Boyle et al., 2007). The objectives were to (1) identify a new resistance gene/QTL in VAX 1 and confirm it in VAX 3, and (2) examine the interaction between the new QTL, SAP6 and SU91-CG11 against two bacterial strains.

Technical Abstract: Resistance to common bacterial blight (CBB) is controlled by more than 20 QTL (Miklas and Singh, 2007). A QTL on Pv10 linked to SAP6 SCAR markers is derived from common bean. Higher levels of resistance associated with BC420 QTL on Pv06 (Yu et al., 2000) and SU91-CG11 QTL on Pv08 (Pedraza et al., 2007) are derived from tepary bean. The BC420 QTL is linked with undesirable seed coat color (Mutlu et al., 2005; Park et al., 1999) and the SU91 QTL is associated with low yield (O’Boyle et al., 2007). The objectives were to (1) identify a new resistance gene/QTL in VAX 1 and confirm it in VAX 3, and (2) examine the interaction between the new QTL, SAP6 and SU91-CG11 against two bacterial strains.

Last Modified: 11/23/2014
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