AI Article Synopsis
- The study investigates the species complex within the ectomycorrhizal genus, focusing on the clade around the deceptive milkcaps, revealing at least 15 morphologically similar species across Asia and America.
- Using molecular techniques, including Illumina sequencing, researchers identified the true clade of the lectotype described in 1885 and confirmed that some previously described species belong to this complex.
- Two new species from the Neotropical region are introduced, expanding the understanding of the diversity within this genus.
Article Abstract
The ectomycorrhizal genus is known to contain many species complexes, consisting of morphologically very similar species, which can be considered cryptic or pseudocryptic. In this paper, a thorough molecular study is performed of the clade around (originally described by Peck from North America) or the deceptive milkcaps. Even though most collections were identified as , the clade is shown to contain at least 15 species, distributed across Asia and America, indicating that the clade represents a species complex. These species are morphologically very similar and are characterized by a tomentose pileus with thin-walled hyphae and a velvety stipe with thick-walled hyphae. An ITS1 sequence was obtained through Illumina sequencing for the lectotype of , dating from 1885, revealing which clade represents the true . In addition, it is shown that three other described species also belong to the clade: , and and molecularly confirmed that represents a synonym of . Furthermore, two new Neotropical species are described: and .
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7325672 | PMC |
| http://dx.doi.org/10.1186/s43008-019-0017-3 | DOI Listing |
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