Combining resistance to common bacterial blight, anthracnose, and bean common mosaic virus into Manitoba-adapted dry bean (Phaseolus vulgaris L.) cultivars

Abstract

Boersma, J. G., Conner, R. L., Balasubramanian, P. M., Navabi, A., Yu, K. and Hou, A. 2014. Combining resistance to common bacterial blight, anthracnose, and bean common mosaic virus into Manitoba-adapted dry bean (Phaseolus vulgaris L.) cultivars. Can. J. Plant Sci. 94: 405–415. Resistance to common bacterial blight (CBB) is generally absent in dry bean cultivars. In order to transfer CBB resistance into dry bean cultivars grown in Manitoba, crosses were made between CBB-resistant navy bean OAC Rex and susceptible cultivars Black Violet (black bean), AC Pintoba (pinto bean) and Morden003 (an anthracnose-resistant navy bean). The F1 progeny were back-crossed to the recurrent susceptible parents for four generations and selections were made based on inoculation tests and molecular markers. The BC4F3 populations were evaluated in CBB field disease nurseries for 3 yr at Morden, MB, and Harrow, ON. Three of the 114 BC4F3 navy bean lines were shown to have improved resistance to both CBB and anthracnose, whereas approximately 50% of the lines exhibited strong resistance to anthracnose. Meanwhile, 11 black bean and 7 pinto bean lines were selected with resistance to CBB and four of the seven pinto beans were also putatively resistant to bean common mosaic virus (BCMV). There was good agreement between the presence of molecular markers and field resistance to CBB and anthracnose. The resistant lines recovered in this research possess desirable yield potential and seed characteristics, and can be used in crossing for future dry bean improvement.

Impact of common bacterial blight on the yield, seed weight and seed discoloration of different market classes of dry beans (Phaseolus vulgarisL.)

“…The presence of SU91 was associated with a reduced incidence of leaf infection in most of the lines, but not in HR67 or F4GR1. Boersma et al (2014) demonstrated that there was a close correlation between field ratings for CBB and the presence of SU91. However, Duncan et al (2012) determined that under severe disease pressure, SU91 alone did not provide high levels of CBB resistance and the combination of SU91 and BC420 was associated with high levels of CBB resistance.…”

“…The navy bean cultivar 'OAC Rex', which also used tepary bean as the CBB resistance source, was registered in 2002 (Michaels et al 2006) as the first Canadian CBBresistant cultivar. The Simple Sequence Repeat (SSR) marker PVctt001 (Yu et al 2000b) on Pv04 was shown to be associated with resistance to CBB in the navy bean cultivar OAC Rex (Michaels et al 2006;Boersma et al 2014).…”

Sources of Resistance to Common Bacterial Blight and Charcoal Rot Disease for the Production of Mesoamerican Common Beans in the Southern United States

“…OAC Rex was developed from interspecific hybridization of tepary and common beans and had a moderate resistance to CBB. The genotype is known to carry a major QTL linked to scar marker SU91 on chromosome Pv08 [ 23 , 24 , 32 , 67 ]. OAC Rex was used as a parent for many CBB-resistant breeding lines and the recently released genotype Lighthouse [ 28 ].…”

A novel study on bean common mosaic virus accumulation shows disease resistance at the initial stage of infection in Phaseolus vulgaris

“…Due to the necessity of using resistant varieties, plant breeders need to investigate sources of BCMV resistance in response to the challenges of common bean susceptibility. Several studies have been conducted to evaluate the existence of disease-resistant genotypes ( Mukeshimana et al, 2005 ; Bello et al, 2014 ; Boersma et al, 2014 ; Yeken et al, 2018 ; Palacıoğlu et al, 2021 ).…”