Arachis virus Y, a new potyvirid from Brazilian forage peanut (Arachis pintoi)

Pantoja, K. F. C.; Boari, A. de J.; Marchi, Bruno Rossitto De; Rezende, Jorge Alberto Marques; Kitajima, Elliot Watanabe; Gonçalves, Rivadalve C.; Assis, G. M. L. de; Blawid, Rosana; Krause‐Sakate, Renate

doi:10.1007/s00705-020-04742-z

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…However, even though we scored for pests and diseases, specific resistance tests should be conducted to select for these traits. Different virus species were identified and isolated from accessions of the Germplasm Bank of Forage Peanut, including a new species of family Potyviridae (Pantoja et al, 2020) and resistance tests were applied for some genotypes. The ecotype BRA-00066013-4 proved to be resistant for seven virus species (data not shown) and probably the observed symptoms should not have viruses as a cause, or the virus has not yet been appropriately identified.…”

Section: Implications For Breeding Forage Peanutmentioning

confidence: 99%

“…Intensity of foliar diseases was positively correlated with frequency of virus-like symptoms, showing that viruses must have been the main shoot diseases in forage peanut during the experiment. This legume is host of several viruses(Pantoja et al, 2020;Sánchez et al, 2016) Gonçalves et al (2016). reported 59.6% incidence of virus-like symptoms in the Active Germplasm Bank of Forage Peanut at Embrapa Acre.…”

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confidence: 99%

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Competitive and spreading abilities of forage peanut in tropical mixed pastures

Andrade¹,

Assis²,

Gonçalves³

et al. 2021

Grass and Forage Science

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Forage peanut (Arachis pintoi) is considered a legume ideotype for use in mixed pastures in humid tropical regions, but its adoption has been hindered by low availability and high prices of commercial seeds. However, there is a concern if breeding of high seed-yielding cultivars could result in loss of compatibility with grasses. This study compared the competitive ability and spreading ability of 12 forage peanut genotypes with contrasting seed-yielding potential in mixtures with Brachiaria humidicola in northern Brazil. These genotypes were previously selected for high performance under clipping in pure stands. Twenty-five rooted stolons of forage peanut were transplanted to the central area (1 × 1 m) of each plot (5 × 5 m) seeded 35 days before with B. humidicola. The experiment used a randomized complete block design with five replicates per genotype and was evaluated under grazing from 6 to 30 months after pasture establishment using the intermittent stocking method. All genotypes persisted and increased their proportion in botanical composition over time. Spread of forage peanut stolons into surrounding B. humidicola sward varied from 0.56 to 1.46 m/year. Cultivar BRS Mandobi had the greatest competitive ability and cultivar Belomonte the greatest spreading ability. Two genotypes (cv. BRS Mandobi and accession BRA-00064752-9) were selected combining high seed-yielding and high compatibility with B. humidicola. This is evidence that both traits (compatibility with grasses and seed yield) can be simultaneously improved in this legume. The results are discussed in terms of the ecology of grass-legume mixtures and breeding of forage peanut.

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Section: Implications For Breeding Forage Peanutmentioning

confidence: 99%

mentioning

confidence: 99%