Lee Jae Sung, Lee Hyang Burm, Shin Hyeon-Dong, Choi Young-Joon
Department of Biology, Kunsan National University, Gunsan 54150, Korea.
Division of Food Technology, Biotechnology & Agrochemistry, Chonnam National University, Gwangju 61186, Korea.
Mycobiology. 2017 Sep;45(3):139-149. doi: 10.5941/MYCO.2017.45.3.139. Epub 2017 Sep 30.
The genus (Peronosporaceae; Oomycota) is an obligate biotrophic group that causes downy mildew disease on the Brassicaceae and allied families of Brassicales, including many economically relevant crops, such as broccoli, cabbage, radish, rape, and wasabi. To investigate the diversity of species in northeast Asia, we performed a morphological analysis for the dried herbarium specimens collected in Korea, along with molecular phylogenetic inferences based on internal transcribed spacer rDNA and 2 mtDNA sequences. It was confirmed that 14 species of exist in Korea. Of these, three species, previously classified under the genus , were combined to : comb. nov. (ex ), comb. nov. (ex ), and comb. nov. (ex ). In addition, finding two potentially new species specific to northeast Asian plants is noteworthy in support of the view that the species abundance of has been underestimated hitherto.
霜霉属（霜霉科；卵菌纲）是一类专性活体营养生物，可在十字花科及十字花目相关科上引发霜霉病，这些科包括许多具有经济价值的作物，如西兰花、卷心菜、萝卜、油菜和芥末。为了研究东北亚地区霜霉属物种的多样性，我们对在韩国采集的干燥标本馆标本进行了形态学分析，并基于内部转录间隔区核糖体DNA和两个线粒体DNA序列进行了分子系统发育推断。已证实韩国存在14种霜霉属物种。其中，先前归类于其他属的3个物种被合并到霜霉属：新组合种（原 ）、新组合种（原 ）和新组合种（原 ）。此外，发现两个东北亚植物特有的潜在新物种值得关注，这支持了此前霜霉属物种丰富度被低估的观点。
