Morphological and Molecular Evidence for Two New Species within Russula Subgenus Brevipes from China
Morphological and Molecular Evidence for Two New Species within Russula Subgenus Brevipes from China
复制标题
中国红菇亚属两个新种的形态学和分子证据
DOI：
10.3390/d14020112
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发表时间：
2022-02
期刊：
影响因子：
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通讯作者：
Bin Chen
中科院分区：
文献类型：
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作者：
Jie Song;Haijiao Li;Shijun Wu;Qianqian Chen;Guang Yang;Jinyun Zhang;Junfeng Liang;Bin Chen
红菇属两新种，即红菇R. subbrevipes和R.根据形态特征和分子生物学特征，对中国产Callainomericis进行了描述。近短柄红菇（Russula subbrevipes）迄今为止仅在中国西南部海拔3400米以上的地区发现，其特征为黄色赭色的菌毛表面、无毛或被绒毛的柄、果味、近球形至椭圆形的担孢子、孤立或部分相连的疣和具帽状附属物的侧囊孢。红盖红菇（Russula callainomorphis）的特征是具有乳白色至白色的菌盖、浅绿松石色的片状边缘、海绵状的菌柄、菌柄顶部的浅绿松石色区、刺激性气味、球形至椭圆形的担孢子和优势的孤立疣。利用多基因序列构建了红菇属的系统发育树，包括内转录间隔区（ITS）、核糖体大亚基（nrLSU）、线粒体rRNA基因小亚基（mtSSU）和RNA聚合酶II第二大亚基（RPB 2）。结果表明，R. subbrevipes和R.红菇属（Russula subg.）Brevipes.文中描述了两个新种，并作了插图。
Two new Russula species, R. subbrevipes and R. callainomarginis, from China are described based on morphological and molecular characteristics. Russula subbrevipes has thus far only been found in southwestern China at altitudes of higher than 3400 m and is characterized by a yellow ochre pileal surface, glabrous or tomentose stipe, fruity odor, subglobose to ellipsoid basidiospores, isolated or partially connected warts and pleurocystidia with a cap appendage. Russula callainomarginis is characterized by a cream to white pileus, light turquoise lamellae margin, spongy stipe, light turquoise zone on the top of the stipe, pungent odor, globose to ellipsoid basidiospores and dominant isolated warts. The phylogenetic tree of Russula was constructed with multi-gene sequences, including the internal transcribed spacer regions (ITS), the ribosomal large subunit (nrLSU), the small subunit of the mitochondrial rRNA gene (mtSSU) and the second largest subunit of RNA polymerase II (RPB2). The results show that both R. subbrevipes and R. callainomarginis represent new lineages in Russula subg. Brevipes. Description and illustration of the two new species are presented.