期刊
IMA FUNGUS
卷 6, 期 1, 页码 13-24出版社
BMC
DOI: 10.5598/imafungus.2015.06.01.02
关键词
Cryptic species; Distribution; Lactifluus; Lactarius; Molecular phylogeny; Taxonomy
类别
资金
- International Foundation for Sciences (IFS) [D/5178-1]
- German Academic Exchange Service (DAAD) [A/11/72562]
Despite the crucial ecological role of lactarioid taxa (Lactifluus, Lactarius) as common ectomycorrhiza formers in tropical African seasonal forests, their current diversity is not yet adequately assessed. During the last few years, numerous lactarioid specimens have been sampled in various ecosystems from Togo (West Africa). We generated 48 ITS sequences and aligned them against lactarioid taxa from other tropical African ecozones (Guineo-Congolean evergreen forests, Zambezian miombo). A Maximum Likelihood phylogenetic tree was inferred from a dataset of 109 sequences. The phylogenetic placement of the specimens, combined with morpho-anatomical data, supported the description of four new species from Togo within the monophyletic genus Lactifluus: within subgen. Lactifluus (L. flavellus), subgen. Russulopsis (L. longibasidius and L. pectinatus), and subgen. Edules (L. melleus). This demonstrates that the current species richness of the genus is considerably higher than hitherto estimated for African species and, in addition, a need to redefine the subgenera and sections within it.
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