Four new species of Russula from the Xizang Autonomous Region and other provinces of China

IF 4.6 2区 生物学 Q1 MYCOLOGY Mycology Pub Date : 2023-11-02 DOI:10.1080/21501203.2023.2265667
Shi-Hui Wang, Guo-Jie Li, Dorji Phurbu, Mao-Qiang He, Ming-Zhe Zhang, Xin-Yu Zhu, Jia-Xin Li, Rui-Lin Zhao, Bin Cao
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Abstract

Russula is the largest genus in the Russulales and is widespread throughout the world. Almost all Russula species are known to be ectomycorrhizal with high ecological and edible values, and some are lethal poisonous. In this study, four new species belonging to the subgenus Russula crown clade are identified based on morphological and phylogenetic evidence from the Xizang Autonomous Region and other provinces of China. Morphologically, Russula paragraveolens (sect. Polychromae, subsect. Xerampelinae) is mainly characterised by a cherry red to blood red pileus centre, a reddish orange pileus margin; R. pseudograveolens (sect. Polychromae, subsect. Xerampelinae) is characterised by a violet brown to brownish red pileus centre, a pale red to pastel red pileus margin and short basidia; R. shigatseensis (sect. Flavisiccantes, subsect. Lepidinae) is characterised by a brownish orange to madder red pileus centre, pinkish red pileus margin, and having lateral branches or branches of hyphal terminations in pileipellis; R. yadongensis (sect. Tenellae, subsect. Laricinae) is characterised by a dark purplish red pileus centre with brownish purple tints and having isolated to clustered spines of spore ornamentations. Their distinct taxonomic status is confirmed by the positions of the four new species in both the ITS and 4-locus (nucLSU, mtSSU, rpb2, tef1) phylogenetic trees.
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标题西藏及中国各省Russula属四新种
Russula是Russulales中最大的属,分布在世界各地。几乎所有的菌根都是外生菌根,具有很高的生态价值和食用价值,有些具有致命的毒性。本文根据西藏和中国其他省份的形态和系统发育证据,鉴定出了4个新种。在形态学上,长叶乌苏娜(多色科,亚科)木霉科)的主要特征是菌毛中心呈樱桃红色至血红色,菌毛边缘呈红橙色;假牡丹(多色组,亚组)鳞片菌科)的特征是紫棕色到棕红色的菌毛中心,浅红色到淡红色的菌毛边缘和短的担子;志贺松香(黄茎节,亚节)Lepidinae)的特点是一个褐色的橙色茜草红菌盖中心,粉红色红菌盖边缘,和横向的分支或分支pileipellis菌丝的终止妊娠;雅冬藓属(节),小节。落叶松科)的特点是深紫红色的菌毛中心带褐紫色的色调,并具有孢子装饰的孤立到集群的刺。这4个新种在ITS和4位点(nucLSU、mtSSU、rpb2、tef1)系统发育树上的位置证实了它们独特的分类地位。
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来源期刊
Mycology
Mycology Medicine-Infectious Diseases
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
13 weeks
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