Utilization of a major brown rust resistance gene in sugarcane breeding

Glynn, Neil C.; LaBorde, Chris; Davidson, R. Wayne; Irey, Mike; Glaz, B.; D’Hont, Angélique; Comstock, Jack C.

doi:10.1007/s11032-012-9792-x

Cited by 63 publications

(59 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sugarcane brown rust resistance gene (Bru1) has been used as a marker to identify if sugarcane genotypes are potentially resistant to brown rust (Asnaghi et al, 2004). This technology was also utilized in the CP program to direct breeding strategies for brown rust resistance (Glynn et al, 2013). Scientists are working on developing a reference genomic map and identifying the markers linked to sugarcane orange rust resistance genes (Yang et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Field Evaluation of Sugarcane Orange Rust for First Clonal Stage of the CP Cultivar Development Program

Zhao¹,

Davidson²,

Baltazar³

et al. 2015

American Journal of Agricultural and Biological Sciences

Self Cite

View full text Add to dashboard Cite

Consistent development of high-yielding sugarcane (a complex hybrid of Saccharum spp.) cultivars with resistance or tolerance to biotic and abiotic stresses is critical to commercial sugarcane production. Currently, orange rust (caused by Puccinia kuehnii E.J. Butler) is a big challenge for the sugarcane production in Florida, USA. A better understanding of sugarcane genotypic variability in response to orange rust disease will help optimize breeding and selection strategies for disease resistance. Orange rust ratings, scaled from non-infection (0) to severe infection (4) with intervals of 0.5, were recorded from genotypes at the first clonal selection stage (Stage I) of the Canal Point sugarcane breeding and cultivar development program in Florida. Data were collected from all 14,272 and 12,661 genotypes and four replicated reference cultivars, CP 78-1628, CP 80-1743, CP 88-1762 and CP 89-2143, in July-August 2012 and 2013, respectively. Mean rust rating, % of rust infection and rust severity in each family (i.e., progeny of the cross from a female and male) and female parent and their Coefficients of Variation (CV) within and among families (females) were estimated. Results indicated that considerable variation exists in rust tolerance among families or females. The families or females for their progenies with the high susceptibility or resistance to orange rust were identified and ranked. The findings of this study are useful for evaluating sugarcane crosses and parents for rust disease and can help breeders use desirable parents for crossing and improve genotypic resistance to orange rust in the sugarcane breeding programs.

show abstract

Section: Discussionmentioning

confidence: 99%

Field Evaluation of Sugarcane Orange Rust for First Clonal Stage of the CP Cultivar Development Program

Zhao¹,

Davidson²,

Baltazar³

et al. 2015

American Journal of Agricultural and Biological Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, the release of cultivars that are resistant to brown rust is very important and is the most efficient form of disease control. The genetic inheritance of brown rust in sugarcane has been broadly studied, and some researchers have claimed that this resistance trait is controlled by one or a few genes (Asnaghi et al, 2004;Costet et al, 2012;Daugrois et al, 1996;Garsmeur et al, 2011;Glynn et al, 2013;Hogarth et al, 1993;Le Cunff et al, 2008;Parco et al, 2014;Raboin et al, 2006;Racedo et al, 2013;Ramdoyal et al, 2000;Sordi et al, 1988). In contrast to that shown for brown rust, almost every trait that is related to sugarcane production exhibits quantitative variations.…”

Section: Mixed Modeling Of Yield Components and Brown Rust Resistancementioning

confidence: 99%

“…The severity of brown rust is assessed on a particular scale (Amorim et al, 1987;Tai et al, 1981), and the frequency of full-sib genotypes in each severity class is influenced by the genetic basis of the parents of the family. Several researchers have reported that brown rust resistance is controlled by one or a few genes (Asnaghi et al, 2004;Costet et al, 2012;Daugrois et al, 1996;Garsmeur et al, 2011;Glynn et al, 2013;Hogarth et al, 1993;Le Cunff et al, 2008;Parco et al, 2014;Raboin et al, 2006;Racedo et al, 2013;Ramdoyal et al, 2000;Sordi et al, 1988). Costet et al (2012) showed that resistance to brown rust in modern polyploid sugarcane cultivars essentially depends on the major gene Bru1.…”

Section: Probabilities Segregations and Heritability Of Resistance mentioning

confidence: 99%

Mixed Modeling of Yield Components and Brown Rust Resistance in Sugarcane Families

et al. 2016

View full text Add to dashboard Cite

Sugarcane (Saccharum spp.) is a complex autopolyploid with high potential for biomass production that can be converted into sugar and ethanol. Genetic improvement is extremely important to generate more productive and resistant cultivars. Populations of improved sugarcane are generally evaluated for several traits simultaneously and in multi-environment trials. In this study, we evaluated two full-sib families of sugarcane (SR1 and SR2) at two locations and 3 yr for stalk diameter, stalk height, stalk number, stalk weight, soluble solid content (Brix), sucrose content of cane, sucrose content of juice, fi ber, cane yield, sucrose yield, and resistance to brown rust (Puccinia melanocephala). Using a mixed model approach, we included appropriate variance-covariance (VCOV) structures for modeling heterogeneity and correlation of genetic eff ects and nongenetic residual eff ects. Th e genotypic correlations between traits were calculated across the adjusted means as the standard Pearson product-moment coeffi cient. Th rough the VCOV structures estimated for each trait, in general, the heritabilities ranged from 0.78 to 0.94. Additionally, we detected 17 and 12 signifi cant genotypic correlations between the evaluated traits for SR1 and SR2, respectively. Th e analysis of the severity data for brown rust revealed that 66 and 32% of the full-sib genotypes in SR1 and SR2, respectively, had at least 90% probability of being resistant. Abbreviations: AIC, Akaike information criterion; BIC, Bayesian information criterion; BLUP, best linear unbiased prediction; FIB, fi ber; GEI, genotype ´ environment interaction; GLMM, generalized linear mixed model; LMM, linear mixed model; METs, multi-environment trials; POL%C, sucrose content of cane in percentage; POL%J, sucrose content of juice in percentage; REML, restricted maximum likelihood; SD, stalk diameter; SH, stalk height; SN, stalk number; SR1, SP80-3280 ´ RB835486 full-sib family of sugarcane 1; SR2, SP81-3250 ´ RB925345 full-sib family of sugarcane 2; SW, stalk weight; TCH, tonnes of cane per hectare; TPH, tonnes of sucrose per hectare; VCOV, variance-covariance. core ideas• A linear mixed model is efficient in production data analysis of sugarcane.• In general, the broad-sense heritability of the traits were high, ranging from 0.78 to 0.94.• A generalized linear mixed model can be applied in brown rust analysis of sugarcane.• Multi-environment trials were applied to the genetic improvement of sugarcane.

show abstract

“…The sugarcane brown rust resistance gene (Bru1) was recently found to be prevalent in 86% of brown rust-resistant clones in a sample of 380 modern cultivars and breeding materials covering worldwide diversity [28]. Therefore, the opportunity exists to utilize Bru1 in marker-assisted breeding and selection in order to improve brown rust resistance in sugarcane [29]. Bru1 has been used as a marker to identify if sugarcane genotypes are potentially resistant to brown rust [25,30,31].…”

Section: Bru1 In Parental Clones and Rust Rating In Their Progenymentioning

confidence: 99%

“…Bru1 has been used as a marker to identify if sugarcane genotypes are potentially resistant to brown rust [25,30,31]. Since 2009, this marker has also been utilized in the CP program to direct breeding strategies for brown rust resistance [29]. The information of Bru1 for parents (available on the CP database) used in this study is given in Tables 3, 4, 5, and 6.…”

Section: Bru1 In Parental Clones and Rust Rating In Their Progenymentioning

confidence: 99%

Screening for Sugarcane Brown Rust in the First Clonal Stage of the Canal Point Sugarcane Breeding Program

Zhao

Davidson²,

Baltazar³

et al. 2015

Agronomy

View full text Add to dashboard Cite

Sugarcane (Saccharum spp.) brown rust (caused by Puccinia melanocephala Syd. & P. Syd.) was first reported in the United States in 1978 and is still one of the great challenges for sugarcane production. A better understanding of sugarcane genotypic variation in response to brown rust will help optimize breeding and selection strategies for disease resistance. Brown rust ratings were scaled from non-infection (0) to severe infection (4) with intervals of 0.5 and routinely recorded for genotypes in the first clonal selection stage of the Canal Point sugarcane breeding program in Florida. Data were collected from 14,272 and 12,661 genotypes and replicated check cultivars in 2012 and 2013, respectively. Mean rust rating, % infection, and severity in each family and progeny of female parent were determined, and their coefficients of variation (CV) within and among families (females) were estimated. Considerable variation exists in rust ratings among families or females. The families and female parents with high susceptibility or resistance to brown rust were identified and ranked. The findings of this study can help scientists to evaluate sugarcane crosses and parents for brown rust disease, to use desirable parents for crossing, and to improve genetic resistance to brown rust in breeding programs. OPEN ACCESSAgronomy 2015, 5 342

show abstract

Utilization of a major brown rust resistance gene in sugarcane breeding

Cited by 63 publications

References 14 publications

Field Evaluation of Sugarcane Orange Rust for First Clonal Stage of the CP Cultivar Development Program

Field Evaluation of Sugarcane Orange Rust for First Clonal Stage of the CP Cultivar Development Program

Mixed Modeling of Yield Components and Brown Rust Resistance in Sugarcane Families

Screening for Sugarcane Brown Rust in the First Clonal Stage of the Canal Point Sugarcane Breeding Program

Contact Info

Product

Resources

About