relationship of this locus with a previously identified QTL for SBWMV resistance and the Sbm1 gene conferring resistance to soil-borne cereal mosaic virus is not known but suggests that a gene on 5DL conferring resistance to both viruses may be present in T aestivum as The Sbm1 locus conferring resistance to Soil-borne cereal mosaic virus maps to a gene-rich region on 5DL in wheat Genome 49 1140-1148 (2004) A controlled environment test for resistance to Soil-borne cereal mosaic virus and its use to determine the mode of inheritance of the resistance in the UK wheat variety Cadenza

Identification of Novel QTL Conferring Sheath Blight

Mar 23 2020Two of these qShB1–1 and qShB8 had very large effects on the phenotype with the weedy allele conferring an increased resistance at both loci (Table 2) However both of these QTL co-localized with known PH and HD genes sd1 and DTH8 respectively (Sasaki et al 2002 Wei et al 2010 ) and both disappeared when the analysis was performed

Genes sbm-1 sbm-3 and sbm-4 conferring resistance to PSbMV pathotypes PI L-l and P4 respectively are located on chromosome 6 while sbm-2 also conferring resistance to pathotype L-l is located on chromosome 2 [5] Although this organisation is suggestive of local gene conversion and translocation between chromosomes 2 and 6 other

Rice Science Vol 18 No 1 2011 58 Table 1 Loci conferring resistance to sheath blight identified in different populations Chr Locus Marker interval or the nearest marker Mapping population LOD Variation explained (%) Reference 1 RM1339 Rosemont/Pecos 30 6 35 0 Sharma et al 2009 1 QRh1 RM265 IR64/Binam Li et al 2009

evolving gene family is functional in conferring resistance Recently two members of a multigene family designated complex I2C were isolated from the I2 F o lycopersici race 2 resistance locus in tomato (Ori et al 1997) The genes show similarity to the group of isolated plant resistance genes that encode cytoplasmic proteins containing

A controlled environment test for resistance to Soil‐borne cereal mosaic virus K E Hammond-Kosack K Kanyuka The Sbm1 locus conferring resistance to Soil-borne cereal mosaic virus maps to a gene-rich region on 5DL in wheat Genome 10 1139/g06-064 49 9 (1140-1148) (2006) Crossref Claudio Ratti Giles Budge Lisa

Dissection of the Fusarium I2 Gene Cluster in Tomato

evolving gene family is functional in conferring resistance Recently two members of a multigene family designated complex I2C were isolated from the I2 F o lycopersici race 2 resistance locus in tomato (Ori et al 1997) The genes show similarity to the group of isolated plant resistance genes that encode cytoplasmic proteins containing

Plant materials and screening for resistance to X index Three mapping populations with a total of 1 375 F 1 genotypes were used to construct a high-resolution genetic map of the XiR1 region The first population 9621 was derived from a cross of D8909-15 F8909-17 in which the XiR1 locus was initially identified (Xu et al 2008) The 9621 population was expanded to 943 F 1 individuals for

The first locus conferring resistance to S endobioticum pathotype 1 (Sen1) was identified on the distal end of the long arm of potato chromosome XI based on restric-tion fragment length polymorphism (RFLP) linkage map-ping in a diploid F1 family [6] Sen1 is part of a 'hot spot' for qualitative and quantitative resistance against

In 2001 Deslandes and colleagues cloned a resistance gene encoding RRS1-R (RESISTANCE TO RALSTONIA SOLANACEARUM1) conferring broad-spectrum resistance to the soil-borne bacterium R solanacearum the causal agent of bacterial wilt (Deslandes et al 1998 2002) RRS1-R contains at its C terminus a WRKY DNA-binding domain

Fusarium oxysporum f sp pisi (Fop ) is a major soil‐borne pathogen and the causal agent of Fusarium wilt of pea (Pisum sativum L ) resulting in significant yield losses Resistant cultivars have become the most effective method for controlling this fungal disease The gene controlling resistance to F oxysporum race 1 in pea Fw is located on linkage group (LG) III and widely used in

In tomato the I locus introgressed from Lycopersicon pimpinellifolium confers resistance to F o lycopersici race 1 and is located on the short arm of chromo- some 11 between RFLP markers TG523 and CP58 (Y Eshed and N Ori unpublished data) The 13 locus from chromosome 7 of L pennellii confers resistance to races 1 2 and 3 of F o

The QTL 18–2 19–1 and 19–2 which confer resistance to multiple P sojae isolates were first mapped in a Conrad Sloan F 4:6 population using two different phenotypic methods [10 11] In this study all three QTL were confirmed in the larger F 6:8 generation flanked by similar markers as in the F 4:6 population The QTL 18–2 (Gm18: 59016134 to 62263273) co-localized with the

Additional minor QTLs contributing to the resistance were identified at early DAI (10 and 13) on chromosomes 8 11 and 21 Positive alleles of these minor QTLs were contributed by either Pima S-7 or Acala NemX Genetic linkage analysis based on this progeny suggests that the major resistance locus may be located on chromosome 17

Identification and validation of a quantitative trait

A total of 246 doubled‐haploid (DH) lines derived from a cross between 'Yumechikara' (resistant) and 'Kitahonami' (susceptible) were evaluated for 2 years for their resistance to WYMV pathotype I A single major quantitative trait locus Q Ymym mapping to chromosome 2D was associated with resistance to pathotype I in 'Yumechikara

1 1 2 Identification and Molecular Mapping of the RsDmR Locus 3 Conferring Resistance to Downy Mildew at Seedling Stage in Radish 4 (Raphanus sativus L )1 5 XU Liang1 JIANG Qiu-wei1 WU Jian2 WANG Yan1 GONG Yi-qin1 WANG Xian-li1 6 LIMERA Cecilia1 and LIU Li-wang1*

Fusarium oxysporum f sp pisi (Fop ) is a major soil‐borne pathogen and the causal agent of Fusarium wilt of pea (Pisum sativum L ) resulting in significant yield losses Resistant cultivars have become the most effective method for controlling this fungal disease The gene controlling resistance to F oxysporum race 1 in pea Fw is located on linkage group (LG) III and widely used in

genomic regions conferring resistance to maize stalk rot A novel resistance QTL Rgsr8 1 was finely mapped conferring broad-spectrum resistance to Gibberella stalk rot (GSR) Segregation analysis in F2 and BC1F1 populations which were derived from a cross between 18327 (Susceptible) and S72356 (Resistant) indicated that the resistance to

This gene appears to be located on linkage group 6 which also includes three resistance genes for pea seed-borne mosaic virus (sbm-1 and sbm-3 sbm-4) and one of clover yellow vein virus (cyv-2) The resistance conferred by wlv is not temperature-dependent and the virus apparently is not seedborne in susceptible genotypes

Plant resistance proteins provide race‐specific immunity through the recognition of pathogen effectors The resistance genes I I‐2 and I‐3 have been incorporated into cultivated tomato (Solanum lycopersicum) from wild tomato species to confer resistance against Fusarium oxysporum f sp lycopersici (Fol) races 1 2 and 3 respectively Although the Fol effectors corresponding to these

BaYMV-1 but are susceptible to BaYMV-2 while those carrying rym5 are resistant to BaYMV-1 BaYMV-2 and BaMMV but not to BaMMV-Sil (Kanyuka et al 2004) Although at least seven independent loci conferring resistance to BYMV have been identified in barley to date (Ordon et

Mapping of the Sbm1 locus conferring resistance to Soil-borne cereal mosaic virus to the gene-rich region on wheat chromosome 5DL Genome (2006) in press Kostya Kanyuka (RRes) Septoria leaf blotch Screening using the sequenced strain IPO323 Jason Rudd (RRes)

Joobeur et al (2004) identified and described the Fom-2 locus which confers resistance to Fom race 1 Tezuka et al (2009) mapped the Fom-1 locus which confers resistance to race 2 No reports have been published to date of QTL analysis for additional minor gene loci involved in FOM resistance

Molecular mapping of genes conferring resistance to soil-borne viruses in barley - an approach to promote understanding of Die genetische Feinstruktur des rym5- Locus wurde in einer 39 1 doppelhaploide Linien umfassenden Due to the soil-borne nature of the disease the availability of resistant cultivars represents the