Interactions between QTL SAP6 and SU91 on resistance to common bacterial blight in red kidney bean and pinto bean populations

Vandemark, George J.; Fourie, D.; Larsen, R.; Miklas, Phillip N.

doi:10.1007/s10681-009-0013-6

Cited by 9 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vandemark et al (2009) observed a lack of interaction between SU91 and SAP6 QTL in their study because SAP6 QTL was ineffective against the aggressive strain they used. The Xa11.4 and SAP6 QTL interacted to provide a higher level of resistance to the less aggressive strain ARX8AC.…”

Section: Discussionmentioning

confidence: 96%

“…The Xa11.4 and SAP6 QTL interacted to provide a higher level of resistance to the less aggressive strain ARX8AC. Vandemark et al (2009) observed a lack of interaction between SU91 and SAP6 QTL in their study because SAP6 QTL was ineffective against the aggressive strain they used. Our results confirm their observation that SAP6 had no effect against an aggressive strain (Xcp25) alone or in combination with other QTL.…”

Section: Discussionmentioning

confidence: 96%

“…The SU91 QTL is associated with low yield (O'Boyle et al, 2007), and the BC420 QTL is linked with undesirable seed coat color (Duncan et al, 2007;Mutlu et al, 2005;Park et al, 1999). Moreover, the homozygous recessive alleles at SU91 locus (i.e., su91/su91) are epistatic over the BC420 (Vandemark et al, 2008) and SAP6 (Vandemark et al, 2009), thus reducing the frequency of CBB resistant plants in the segregating generations. Therefore, there is strong justification for the search for new CBB resistance genes/QTL from across Phaseolus species.…”

mentioning

confidence: 99%

See 2 more Smart Citations

A New Common Bacterial Blight Resistance QTL in VAX 1 Common Bean and Interaction of the New QTL, SAP6, and SU91 with Bacterial Strains

Viteri

Cregan

Trapp³

et al. 2014

Crop Science

View full text Add to dashboard Cite

Common bacterial blight (CBB) is a severe disease in common bean (Phaseolus vulgaris L.). New resistance quantitative trait loci (QTL) should facilitate development of cultivars with high levels of resistance. Our objectives were to (i) identify new resistance QTL in VAX 1 and verify its presence in VAX 3, (ii) determine the interaction between QTL with existing SAP6 and SU91 QTL, and (iii) examine the interaction between QTL with less aggressive ARX8AC and aggressive Xcp25 bacterial strains. Sixty‐one F6:7 recombinant inbred lines (RIL) from ‘Othello’/VAX 1 and 100 RIL from Othello/VAX 3 were screened in the greenhouse. Disease severity of inoculated primary leaves, first and second trifoliolate leaves, and pods, was scored from 1 = no symptoms to 9 = completely diseased. Genotyping was performed using 5398 single nucleotide polymorphism (SNP) BeadChip and CBB resistance QTL‐linked sequence characterized amplified region (SCAR) markers, SAP6 and SU91. A novel resistance QTL with major effect was detected on Pv11 linkage group in Othello/VAX 1 and verified in Othello/VAX 3. This Pv11 QTL, defined by the closest marker SNP47467 (45,059,806 bp), explained 23% of the phenotypic variance for resistance in primary and 18% in trifoliolate leaves in Othello/VAX 1, and 13% and 22%, respectively, in Othello/VAX 3 to ARX8AC. The Pv11 QTL, named Xa11.4OV1,OV3, had greater influence against Xcp25, with respective values for variance for resistance explained in primary and trifoliolate leaves of 45% and 51% in Othello/VAX 1 and 26% and 37% in Othello/VAX 3. Conversely, SAP6 was only effective against ARX8AC in both populations, and surprisingly, SU91 was only effective against Xcp25 in Othello/VAX 3. SAP6 was the only QTL to condition resistance in pods. QTL interactions and differential reactions to strains indicate that the new Xa11.4OV1,OV3 QTL is critical in breeding for stable and higher levels of foliage resistance to CBB in common bean.

show abstract

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 96%

mentioning

confidence: 99%

See 1 more Smart Citation

A New Common Bacterial Blight Resistance QTL in VAX 1 Common Bean and Interaction of the New QTL, SAP6, and SU91 with Bacterial Strains

Viteri

Cregan

Trapp³

et al. 2014

Crop Science

View full text Add to dashboard Cite

show abstract

“…Thus, BC420 resistance QTL serves as an enhancer of common bacterial blight resistance in the presence of the SU91 QTL. Vandemark et al (2009) observed a similar lack of effect of SAP6 in response to an aggressive strain. The SAP6 linked QTL confers common bacterial blight resistance in leaves and pods to less aggressive bacterial strains in the common bean landraces (e.g., great northern Montana No.…”

mentioning

confidence: 64%

Progress in Breeding Andean Common Bean for Resistance to Common Bacterial Blight

et al. 2014

View full text Add to dashboard Cite

Common bacterial blight is a severe disease of common bean (Phaseolus vulgaris L.) worldwide. Use of resistant cultivars is crucial for its control. The objectives were to (i) assess the progress made in breeding large‐seeded Andean bean developed between 1974 and 2010 and (ii) determine their resistance‐linked sequence characterized amplified region (SCAR) marker composition. Ten Andean and four Middle American common bacterial blight resistant beans including checks were evaluated in the greenhouse in 2011. Bacterial strains ARX8AC and Xcp25 were used to inoculate primary and trifoliolate leaves. The mean disease score of the trifoliolate was 5.0 and of the primary leaf was 2.8. Strain Xcp25 had a mean score of 3.8 in primary and 5.9 in trifoliolate leaves. The respective scores for ARX8AC were 1.9 and 4.2. Andean ‘Montcalm’, with the SAP6 quantitative trait loci (QTL) and USDK‐CBB‐15, and USWK‐CBB‐17, with the SAP6 and SU91 QTL, showed an intermediate response to ARX8AC and a susceptible response to Xcp25. Middle American VAX 1 with SAP6, Andeans 08SH‐840 and CXR 1 with SAP6 and SU91, and RCS52‐2, RCS53‐3, and RCS63‐5B with SU91 and BC420 were resistant or intermediate to both strains. Middle American VAX 3 and VAX 6, with SAP6 and SU91, had the highest levels of resistance to ARX8AC, but their responses to Xcp25 were similar to the latter Andean group. Thus, significant improvement has been achieved, but breeding for yet higher levels of resistance, recovery of commercial seed types, and improving yield and other agronomic traits should be emphasized.

show abstract

“…CBB resistance is quantitatively controlled, usually by one major large effect allele and additional minor small effect alleles [80]. Negative epistatic interactions between QTL for resistance have been reported [85], in addition to negative associations between agronomic traits and resistance QTL [86]. In general, breeding for CBB resistance is difficult due to a variety of factors including: pathogen variability, variation in host-pathogen relationship, variation in QTL expression, linkage drag and different genes controlling resistance in multiple plant tissues [87,88].…”

Section: Use Of Resistance Varietiesmentioning

confidence: 99%

Common Bacterial Blight (Xanthomonas axonopodis pv. phaseoli) of Beans with Special Focus on Ethiopian Condition

Baştaş¹,

Kk²

2017

J Plant Pathol Microbiol

View full text Add to dashboard Cite

Common bacterial blight (CBB) is the most devastating factor that affects common bean crops in all common bean growing areas. This review was to review with an objective of reviewing the biology, economic importance of CBB of common bean crop disease and its management options, with an emphasis on the future research direction and priorities. CBB disease, caused by the gram-negative bacterial pathogen Xanthomonas axonopodis pv. phaseoli (Xap) and its fuscans variant Xanthomonas fuscans subsp. fuscans (Xff) is the major bottleneck in bean production in the world as well as in Ethiopia. It is a serious bacterial disease of common bean which causes lesions on the leaves, stems, pods and seeds of the plant. The disease affects seed quality and can reduce yield by up to 45%, may be more in susceptible cultivars. CBB is very difficult to control due to seed-borne nature of the bacteria and its capacity to produce huge amounts of secondary inoculum. Since the disease is very important in causing economic losses of yields on bean crop, developing and using effective and appropriate management options is unquestionable. Using resistant varieties supplemented with chemical seed treatment and proper cultural practices could be the best alternative options in managing common bacterial blight of common bean and avoiding yield loss. In general, integrated disease management is the preferred strategy because of increased understanding on residual effects of chemical control on non-target organisms and environment as well as the limitation of a single alternative management option to achieve the same level of control and reliability as that of chemical. In the case of Ethiopia, emphasis should be given to developing multi line resistance varieties by suitable breeding practice and developing molecular markers to enhance marker assisted selection.

show abstract

Interactions between QTL SAP6 and SU91 on resistance to common bacterial blight in red kidney bean and pinto bean populations

Cited by 9 publications

References 28 publications

A New Common Bacterial Blight Resistance QTL in VAX 1 Common Bean and Interaction of the New QTL, SAP6, and SU91 with Bacterial Strains

A New Common Bacterial Blight Resistance QTL in VAX 1 Common Bean and Interaction of the New QTL, SAP6, and SU91 with Bacterial Strains

Progress in Breeding Andean Common Bean for Resistance to Common Bacterial Blight

Common Bacterial Blight (Xanthomonas axonopodis pv. phaseoli) of Beans with Special Focus on Ethiopian Condition

Contact Info

Product

Resources

About