New races of the spinach downy mildew pathogen, Peronospora farinosa f. sp. spinaciae, in Japan in 2017

Kubota, Masaharu; Yamauchi, Norihito; Yachi, Yuma; Ota, Tetsuji; Shoji, Toshihiko

doi:10.1007/s10327-018-0817-0

Cited by 1 publication

(3 citation statements)

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“…FA1 also did not match the infection patterns of any of races 1-17 and was temporarily named J19-2. Reaction patterns to the cultivars differed among J19-1, J19-2, J17-2 (Kubota et al, 2019), J17-3 (Kubota et al, 2019), J13-1 (Kubota et al, 2017), and SAI-1 or SAI-2 (Yamauchi et al, 2011).…”

Section: Resultsmentioning

confidence: 92%

“…Two of these, temporarily referred to as J17-2 and J17-3 were novel, and the third, J17-1, appeared to belong to race 17, based on its reactions to a series of cultivars (Plantum, 2018). Races J13-1, J17-2, J17-3 and isolates SAI-1 and SAI-2 differ from each other in their reactions to race-differential cultivars (Kubota et al, 2019).…”

mentioning

confidence: 89%

“…Kubota et al (2017) found races 8, 10, 12, and 13 and a novel race, temporarily referred to as J13-1, that appeared to be distinct from races 1-17, in Japan in 2013-2016. In 2016-2017, three new races were found in Ibaraki and Saitama Prefectures (Kubota et al, 2019).…”

mentioning

confidence: 99%

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New races of the spinach downy mildew pathogen, Peronospora farinosa f. sp. spinaciae, isolated in Fukuoka Prefecture, Japan in 2019

Kubota

Kajitani²

2021

Ann. Rept. Kansai Pl. Prot.

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Five isolates of the pathogen that causes downy mildew in spinach, Peronospora farinosa f. sp. spinaciae, collected in Fukuoka Prefecture, Japan, in 2019 were identified as two races, which were distinct from races 1-17 authorized by the International Working Group on Peronospora. The races were temporarily named J19-1 and J19-2.J19-1 reacted to race-differential cultivars similar to an isolate from the United States, UA201502. However, the response of J19-2 to race-differential cultivars differed from any reported races.

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