Identification of a resistance gene Rpi-dlc1 to Phytophthora infestans in European accessions of Solanum dulcamara

Golas, T.M.; Sikkema, Anne; Gros, Jack; Feron, Richard; Berg, R.G. van den; Weerden, Gerard M. van der; Mariani, Celestina; Allefs, J. J. H. M.

doi:10.1007/s00122-009-1202-3

Cited by 33 publications

(29 citation statements)

References 51 publications

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“…Such approach has been applied in another distant Solanum relative -S. dulcamara that cannot be crossed with potato. Using intraspecific crosses two late blight resistance genes of this species have been mapped: Rpi-dlc1 to chromosome IX (Golas et al 2010) and Rpi-dlc2 to chromosome X (Golas et al 2012). What is interesting, mapping of Rpidlc2 has been difficult due to the fact that in the mapping population both Rpi-dlc1 and Rpi-dlc2 were segregating and their phenotypic effects have been overlapping which is similar to the situation in our population B.…”

Section: Fig 1 Virulence Of 48 P Infestans Isolates On a Set Of Blsupporting

confidence: 63%

Resistance to Phytophthora Infestans in Three Solanum Nigrum F3 Families

Śliwka¹,

Tomczyńska²,

Chmielarz³

et al. 2014

Plant Breeding and Seed Science

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RESISTANCE TO PHYTOPHTHORA INFESTANS IN THREE SOLANUM NIGRUM F 3 FAMILIES ABSTRACTSolanum nigrum is a self-pollinating, hexaploid weed and one of a few Solanaceae species native to Europe. It used to be described as a non-host for Phytophthora infestans. However, now it is known that, like its distant relatives: potato (Solanum tuberosum L.) and tomato (Solanum lycopersicum L.), S. nigrum can suffer from potato late blight caused by this pathogen. Both susceptible and resistant S. nigrum genotypes have been previously identified and inheritance of resistance originating from one accession has been described based on population of F 2 plants and 15 F 3 lines. The goal of this study was to evaluate resistance of three families of F 3 lines, originating from crosses between a susceptible and three different resistant S. nigrum accessions followed by two self-pollinations. Parental accessions were tested for the spectrum of late blight resistance against 48 P. infestans isolates. The three families consisted of 106, 96 and 115 F 3 lines, respectively, and from each line 20 plants were tested for resistance to P. infestans. Laboratory detached leaf assays were performed in two dates and two replications of three leaves each. Segregation of the trait within the line allowed us to distinguish hetero-and homozygous lines. In one F 3 family, the ratio of resistant homozygotes: heterozygotes: susceptible homozygotes was 1:2:1, indicating that a single gene is most likely underlying the late blight resistance in this case. In the other two, observed segregations of the trait significantly deviated from this model suggesting more complex inheritance patterns.

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Section: Fig 1 Virulence Of 48 P Infestans Isolates On a Set Of Blsupporting

confidence: 63%

Resistance to Phytophthora Infestans in Three Solanum Nigrum F3 Families

Śliwka¹,

Tomczyńska²,

Chmielarz³

et al. 2014

Plant Breeding and Seed Science

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“…R genes conferring resistance to late blight, Rpi-moc1a.k.a. Rpi-mcq1 (Smilde et al 2005), Rpi-vnt1.1 Pel et al 2009), Rpi-phu1 (Śliwka et al 2006, Rpi-dlc1 (Golas et al 2010) and R8 (Jo et al 2011) have been reported in a similar position as dPI09c on the long arm of chromosome 9 in potato relatives. In the published sequence of the potato (DM) genome, nine Rpi-vnt1-like genes are present in the superscaffold PGSC0003DMB000000339, which in addition to the Rpi-vnt1-like genes contains other NBS-LRRlike genes.…”

Section: Discussionmentioning

confidence: 78%

Conditional QTL underlying resistance to late blight in a diploid potato population

Lindqvist‐Kreuze²,

Tian

et al. 2012

Theor Appl Genet

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A large number of quantitative trait loci (QTL) for resistance to late blight of potato have been reported with a "conventional" method in which each phenotypic trait reflects the cumulative genetic effects for the duration of the disease process. However, as genes controlling response to disease may have unique contributions with specific temporal features, it is important to consider the phenotype as dynamic. Here, using the net genetic effects evidenced at consecutive time points during disease development, we report the first conditional mapping of QTL underlying late blight resistance in potato under five environments in Peru. Six conditional QTL were mapped, one each on chromosome 2, 7 and 12 and three on chromosome 9. These QTL represent distinct contributions to the phenotypic variation at different stages of disease development. By comparison, when conventional mapping was conducted, only one QTL was detected on chromosome 9. This QTL was the same as one of the conditional QTL. The results imply that conditional QTL reflect genes that function at particular stages during the host-pathogen interaction. The dynamics revealed by conditional QTL mapping could contribute to the understanding of the molecular mechanism of late blight resistance and these QTL could be used to target genes for marker development or manipulation to improve resistance.

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“…However, efforts to use these markers in oat have not yet produced a consensus map, in which all linkage groups are assigned to the expected 21 oat chromosomes. AFLP markers have been associated with resistance genes in several species, including wheat (Weng and Lazar 2002;Randhawa et al 2009), tomato (Giovanni et al 2004;Golas et al 2010), maize (Duble et al 2003;Chen et al 2004;Liu et al 2009), canola (Kaur et al 2009), and radish (Kamei et al 2010). In the present study, the AFLP molecular markers U8PM22 and U8PM25, developed by Locatelli et al, were associated with the Pc68 gene.…”

Section: Mapping Analysismentioning

confidence: 98%

Molecular mapping of Pc68, a crown rust resistance gene in Avena sativa

et al. 2010

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Crown rust, which is caused by Puccinia coronata f. sp. avenae, P. Syd. & Syd., is the most destructive disease of cultivated oats (Avena sativa L.) throughout the world. Resistance to the disease that is based on a single gene is often short-lived because of the extremely great genetic diversity of P. coronata, which suggests that there is a need to develop oat cultivars with several resistance genes. This study aimed to identify amplified fragment length polymorphism AFLP markers that are linked to the major resistance gene, Pc68, and to amplify the F 6 genetic map from Pc68/5*Starter 9 UFRGS8. Seventy-eight markers with normal segregation were discovered and distributed in 12 linkage groups. The map covered 409.4 cM of the Avena sativa genome. Two AFLP markers were linked in repulsion to Pc68: U8PM22 and U8PM25, which flank the gene at 18.60 and 18.83 centiMorgans (cM), respectively. The marker U8PM25 is located in the linkage group 4_12 in the Kanota 9 Ogle reference oat population. These markers should be useful for transferring Pc68 to genotypes with good agronomic characteristics and for pyramiding crown rust resistance genes.

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Identification of a resistance gene Rpi-dlc1 to Phytophthora infestans in European accessions of Solanum dulcamara

Cited by 33 publications

References 51 publications

Resistance to Phytophthora Infestans in Three Solanum Nigrum F3 Families

Resistance to Phytophthora Infestans in Three Solanum Nigrum F3 Families

Conditional QTL underlying resistance to late blight in a diploid potato population

Molecular mapping of Pc68, a crown rust resistance gene in Avena sativa

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