Multiple Rpp-gene pyramiding confers resistance to Asian soybean rust isolates that are virulent on each of the pyramided genes

Yamanaka, Naoki; Morishita, Mitsuru; Mori, Tomomi; Lemos, N. G.; Hossain, Md. Motaher; Akamatsu, Hajime; Kato, Masayasu; Yamaoka, Yuichi

doi:10.1007/s40858-015-0038-4

Cited by 39 publications

(44 citation statements)

References 25 publications

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“…, Yamanaka et al. 2013a, 2015a). However, as it is difficult to decide the multi‐ Rpps genotypes in soybean plants based solely on the resistant phenotypes, DNA markers linked to the different Rpp loci are necessary for selecting plants carrying the desired Rpp genotypes at these loci for breeding purposes.…”

Section: Discussionmentioning

confidence: 97%

The locus for resistance to Asian soybean rust in PI 587855

et al. 2016

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Asian soybean rust (ASR) caused by Phakopsora pachyrhizi is one of the most serious soybean (Glycine max) diseases in tropical and subtropical areas. A soybean line, PI 587855, showed a resistance phenotype against ASR pathogens in Japan and South America at high frequency; however, little is known of the genetic control of this resistance and chromosomal location of the corresponding locus. Therefore, the aim of this study was to study the inheritance of PI 587855 resistance and map the corresponding locus with SSR markers aiming to use the linked markers in marker‐assisted selection. In the segregating population, resistance to ASR appeared to be controlled by a single dominant gene. The ASR resistance locus was mapped near to the chromosomal region where the resistant loci, Rpp1 and Rpp1‐b, were previously mapped. Comparative genetic mapping and disease reaction profiles of other seven lines carrying Rpp1 or Rpp1‐b to four Brazilian ASR isolates revealed that the resistance reaction exhibited by PI 587855 was similar to that of Rpp1‐b‐carrying varieties which have useful resistance to South American ASR strains.

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Section: Discussionmentioning

confidence: 97%

The locus for resistance to Asian soybean rust in PI 587855

et al. 2016

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“… The seven additional Rpp ‐pyramided lines that were developed previously (Lemos et al, ; Yamanaka et al, , , ) have been omitted from this table. …”

Section: Methodsmentioning

confidence: 99%

“…These genes are now available for marker assisted breeding but are only effective against specific P. pachyrhizi races and so rarely offer durable resistance to the highly variable ASR pathogen (Oliveira, Godoy, & Martins, ), which limits their use for developing ASR‐resistant soybean, particularly in areas where the pathogen is highly virulent (Akamatsu et al, , ; García‐Rodríguez, Morishita, Kato, & Yamanaka, ; Stewart, Rodrígue, & Yamanaka, ; Yamanaka et al, , ). However, pyramiding specific combinations of resistance genes in a single variety can confer a higher level of broad‐spectrum resistance, representing an ideal breeding strategy for the production of ASR‐resistant soybean (Lemos et al, ; Maphosa, Talwana, & Tukamuhabwa, ; Yamanaka et al, , ).…”

Section: Introductionmentioning

confidence: 99%

“…Pyramiding Rpp2 , Rpp4 and Rpp5 in a single soybean genotype has been shown to provide greater resistance to the ASR pathogen (Lemos et al, ) and confer resistance to a range of ASR isolates (Yamanaka et al, ). The magnitude of the pyramiding effect depends on the combination of Rpp genes that is used (Yamanaka et al, ), with three kinds of gene‐combinations ( Rpp4 + Rpp5 , Rpp2 + Rpp3 + Rpp4 and Rpp2 + Rpp4 + Rpp5 ) appearing to be superior (Yamanaka et al, ). However, only seven Rpp gene combinations have been tested to date (four di‐ and three tri‐ Rpp combinations) against only three P. pachyrhizi isolates.…”

Section: Introductionmentioning

confidence: 99%

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Pyramiding three rust‐resistance genes confers a high level of resistance in soybean (Glycine max)

Yamanaka

Hossain

2019

Plant Breeding

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Pyramiding Asian soybean rust (ASR) resistance (Rpp) genes in a single genotype has been shown to increase ASR resistance in soybean. However, it remains unclear which combinations of Rpp genes are superior. Therefore, here, we developed six new Rpp‐pyramided lines carrying different combinations of Rpp genes and evaluated their resistance against 13 Bangladeshi rust (Phakopsora pachyrhizi) isolates (BdRPs) alongside seven previously developed Rpp‐pyramided lines. We found that lines carrying one, two and three Rpp genes had high ASR resistance without sporulation in 13.8%, 35.2% and 73.1% of the assays, respectively. Among the new lines that were developed, those with Rpp3 + Rpp4 and Rpp3 + Rpp4 + Rpp5 had high levels of ASR resistance, while the line containing Rpp2 + Rpp4 + Rpp5 showed immunity phenotype at two weeks after inoculation by the BdRP‐22 infection. Thus, pyramiding larger numbers of Rpp genes confers soybean with a higher level of resistance to ASR pathogens and can produce an immunity phenotype at two weeks after inoculation.

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“…Past researches on host resistance to soybean rust have identified six major resistance loci (Rpp: resistance to P. pachyrhizi), named Rpp1 to Rpp6 and an allele (Chakraborty et al 2009, Garcia et al 2008, Hartwig 1986, Hartwig & Bromfield 1983, Li et al 2012, McLean & Byth 1980, Ray et al 2009). These Rpp genes confer specific resistance to a limited set of P. pachyrhizi isolates, some of which have been used to develop Rpp gene-carrying cultivars (Garcia et al 2011, Hartman et al 2011 and Rpp-pyramided lines (Lemos et al 2011, Maphosa et al 2012, Yamanaka et al 2015b) using conventional strategies.…”

Section: Introductionmentioning

confidence: 99%

Pathogenic Variation of South American <i>Phakopsora pachyrhizi</i> Populations Isolated from Soybeans from 2010 to 2015

Akamatsu

Yamanaka

Soares

et al. 2017

JARQ

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Soybean rust caused by Phakopsora pachyrhizi is one of the most serious economic threats to soybean production in South America. A previous study using South American P. pachyrhizi populations collected between 2007/2008 and 2009/2010 revealed the pathogenic diversity in Argentinean, Brazilian, and Paraguayan rust populations. Because such pathogenic diversity has been a major constraint to the breeding program for soybean rust resistance, pathogen populations were continuously monitored throughout the 2010/2011 to 2014/2015 seasons using the same method of evaluating pathogenicity as used in the previous study. None of the 83 P. pachyrhizi samples collected from the three countries from 2010/2011 to 2014/2015 yielded identical pathogenicity patterns in the 16 differentials, thus demonstrating the pathogenic diversity of more recent South American rust populations. Cluster analysis using a total of 145 rust populations from 2007 to 2015 demonstrated that the Argentinean, Brazilian, and Paraguayan populations were not assigned to three distinct country-based groups. The analysis indicated that a majority of South American populations differed in pathogenicity compared with Japanese rust races. The rates of resistance to the rust populations varied among the 13 differentials carrying Rpp genes; the most effective resistance gene was Rpp1-b followed by Rpp5, and the least effective was Rpp1.

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Multiple Rpp-gene pyramiding confers resistance to Asian soybean rust isolates that are virulent on each of the pyramided genes

Cited by 39 publications

References 25 publications

The locus for resistance to Asian soybean rust in PI 587855

The locus for resistance to Asian soybean rust in PI 587855

Pyramiding three rust‐resistance genes confers a high level of resistance in soybean (Glycine max)

Pathogenic Variation of South American <i>Phakopsora pachyrhizi</i> Populations Isolated from Soybeans from 2010 to 2015

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