Inheritance of resistance to a Brassica juncea pathotype of<i>Albugo Candida</i>in<i>B. napus</i>

Verma, U. N.; Bhowmik, T. P.

doi:10.1080/07060668909501095

Cited by 24 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While B. rapa is the primary host of race 7 (Pidskalny and Rimmer 1985;Petrie 1988), races do not exhibit an absolute adaptation to a particular host species but can also infect heterologous hosts (Petrie 1988), especially those sharing a common genome. The genetic control of resistance to different races of A. candida in oilseed brassicas has been reported to be governed by either a single dominant gene Williams 1974, Ebrahimi et al 1976;Tiwari et al 1988;Liu and Rimmer 1991;Ferreira et al 1995;Kole et al 1996;Somers et al 2002), duplicate dominant genes (Verma and Bhowmik 1989) or minor genes (Edwards and Williams 1987;Kole et al 1996). In B. napus, three dominant genes confer resistance to race 7 (Fan et al 1983;Liu et al 1996), whereas either a dominant allele at a single locus or two tightly linked loci control resistance to races 2 and 7 (Kole et al 2002).…”

Section: Introductionmentioning

confidence: 97%

Identification and mapping of resistance gene analogs and a white rust resistance locus in Brassica rapa ssp. oleifera

Tanhuanpää

2003

Theor Appl Genet

View full text Add to dashboard Cite

The objective of this investigation was to tag a locus for white rust resistance in a Brassica rapa ssp. oleifera F(2) population segregating for this trait, using bulked segregant analysis with random amplified polymorphic DNA (RAPD) markers, linkage mapping and a candidate gene approach based on resistance gene analogs (RGAs). The resistance source was the Finnish line Bor4109. The reaction against white rust races 7a and 7v was scored in 20 seedlings from each self-pollinated F(2 )individual. The proportion of resistant plants among these F(3) families varied from 0 to 67%. Bulked segregant analysis did not reveal any markers linked with resistance and, therefore, a linkage map with 81 markers was created. A locus that accounted for 18.4% of the variation in resistance to white rust was mapped to linkage group (LG) 2 near the RAPD marker Z19a. During the study, a bacterial resistance gene homologous to Arabidopsis RPS2 and six different RGAs were sequenced. RPS2 and five of the RGAs were mapped to linkage groups LG1, LG4 and LG9. Unfortunately, none of the RGAs could be shown to be associated with white rust resistance.

show abstract

Section: Introductionmentioning

confidence: 97%

Identification and mapping of resistance gene analogs and a white rust resistance locus in Brassica rapa ssp. oleifera

Tanhuanpää

2003

Theor Appl Genet

View full text Add to dashboard Cite

show abstract

“…× BN-Sel.) genotypes [48]. Similarly, digenic inheritance was proposed in segregating generations that were developed by S × R cross (Varuna of B. juncea × ISN 706 of B. napus) against Ac-Dli isolate of A. candida [49].…”

Section: Discussionmentioning

confidence: 99%

Inheritance and Allelic Relationship among Gene(s) for White Rust Resistance in Indian Mustard [Brassica juncea (L.) Czern & Coss]

et al. 2022

View full text Add to dashboard Cite

White rust [Albugo candida (Pers. Ex. Lev) Kuntze] is an important oomycetes disease of Indian mustard [Brassica juncea (L.) Czern & Coss] that causes a drastic reduction in seed yield and quality when the conditions are favorable. A set of 25 Indian mustard genotypes were screened against A. candida Delhi isolate (Ac-Dli) under both controlled and natural epiphytotic conditions. Out of 25, only six genotypes (Pusa Karishma, PDZ-3, Heera, BEC-144, BIO YSR, and Donskaja) were found highly resistant in both environments. To study the inheritance of resistance, four resistant genotypes (BEC-144, BIO YSR, Pusa Karishma, and Donskaja) were crossed with three susceptible genotypes (PM-24, Pusa Vijay, and MSTWR-17-15) in a definite design. The parents, F1, F2, and BC1F1 (F1 backcrossed with susceptible parent) generations were screened under both artificially controlled and natural epiphytotic conditions and the results indicated that the resistance in BIO YSR, BEC-144, and Pusa Karishma is governed by a single dominant gene, but more than one dominant gene is responsible for resistance in Donskaja. A test of an allelism conducted on the F2 population derived by crossing resistant (BEC-144) × resistant (BIO YSR) genotypes indicated that the gene imparting resistance to Ac-Dli isolate in the resistant parents BEC-144 and BIO YSR is the same and they are allelic to each other. Therefore, in broader terms, the information generated in the present study will be useful in Indian mustard breeding programs for the development of durable resistant cultivars.

show abstract

“…Oospores are found in all infected tissues. The disease causes serious loss in yield (Bains & Jhooty, 1979;Verma & Bhowmik, 1989).…”

Section: Introductionmentioning

confidence: 99%

Growth of the white rust fungus Albugo candida in callus tissue of Brassica juncea

Lahiri

Bhowmik

1993

Journal of General Microbiology

View full text Add to dashboard Cite

Inheritance of resistance to a Brassica juncea pathotype ofAlbugo CandidainB. napus

Cited by 24 publications

References 1 publication

Identification and mapping of resistance gene analogs and a white rust resistance locus in Brassica rapa ssp. oleifera

Identification and mapping of resistance gene analogs and a white rust resistance locus in Brassica rapa ssp. oleifera

Inheritance and Allelic Relationship among Gene(s) for White Rust Resistance in Indian Mustard [Brassica juncea (L.) Czern & Coss]

Growth of the white rust fungus Albugo candida in callus tissue of Brassica juncea

Contact Info

Product

Resources

About