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May 2006
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21 Reads
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4 Citations
Nova Hedwigia
Twelve species and two varieties of Stereocaulon are reported for the first time from China, viz. Stereocaulon alpestre, St. botryosum, St. coniophyllum, St. depreaultii, St. exutum, St. foliolosum var. botryophorum, St. graminosum, St. himalayense, St. intermedium, St. myriocarpum var. altaicum, St. prostratum, St. rivulorum, St. saxatile and St. sterile. Descriptions and remarks are given.
January 2006
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70 Reads
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23 Citations
Specimens of Rhizoplaca chrysoleuca from Mount Wuling can be divided into two distinct groups based on obvious differences in morphological characters. Here we investigated 26 specimens of R. chrysoleuca from Mount Wuling, 10 specimens of this species from other areas and seven specimens of other Rhizoplaca species by analyzing morphology, chemistry and genetics. Nine chemotypes were detected among the specimens of R. chrysoleuca from Mount Wuling, and five of them were reported for the first time. Based on the ITS phylogenetic analysis, the chemotypes and the insertion distribution patterns in SSU rDNA, the samples of R. chrysoleuca from Mount Wuling were grouped in two distinct clades corresponding to two phenotypic groups and no gene flow was detected between these two groups. Our results establish all individuals of Rhizoplaca chrysoleuca are conspecific although some populations have been isolated on Mount Wuling, indicating that they are in the process of speciation. Our study also reveals that the relationships between genotypes and chemotypes are complicated and should be avoided, and we instead recommend using single individuals or few individuals from the same site to represent the population or whole species in systematics study. The results also indicate that Rhizoplaca chrysoleuca might provide a good model for studying the speciation of saxicolous lichenized fungi.
January 2006
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105 Reads
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26 Citations
Specimens of Rhizoplaca chrysoleuca from Mount Wuling can be divided into two distinct groups based on obvious differences in morphological characters. Here we investigated 26 specimens of R. chrysoleuca from Mount Wuling, 10 specimens of this species from other areas and seven specimens of other Rhizoplaca species by analyzing morphology, chemistry and genetics. Nine chemotypes were detected among the specimens of R. chrysoleuca from Mount Wuling, and five of them were reported for the first time. Based on the ITS phylogenetic analysis, the chemotypes and the insertion distribution patterns in SSU rDNA, the samples of R. chrysoleuca from Mount Wuling were grouped in two distinct clades corresponding to two phenotypic groups and no gene flow was detected between these two groups. Our results establish all individuals of Rhizoplaca chrysoleuca are conspecific although some populations have been isolated on Mount Wuling, indicating that they are in the process of speciation. Our study also reveals that the relationships between genotypes and chemotypes are complicated and should be avoided, and we instead recommend using single individuals or few individuals from the same site to represent the population or whole species in systematics study. The results also indicate that Rhizoplaca chrysoleuca might provide a good model for studying the speciation of saxicolous lichenized fungi.
... Zopf, R. melanophthalma, R. phaedrophthalma and R. subdiscrepans (Nyl.) R. Sant (Zhou et al. 2006;Leavitt et al. 2011Leavitt et al. , 2013aLeavitt et al. , 2016Szczepańska et al. 2020). Five new species were described in the R. melanophthalma-complex, based on molecular phylogenetic results (Leavitt et al. 2013b). ...
January 2006
... This species can be characterized by its suberect, 2-3 cm tall thallus that is K+ pale yellow (atranorin) and produces of lobaric acid, moderately to very dense cushions of cylindrical, caespitose pseudopodetia completely lacking tomentum, numerous phyllocladia mostly flat, grain-like, or warty to spherical or compound warty, usually 0.1-0.2 mm in diameter and mainly present in the upper parts of the pseudopodetia, and numerous sessile, spherical grey-brown botryose cephalodia (Huang & Wei 2006). ...
May 2006
Nova Hedwigia
... Total DNA from mycobionts and photobionts was extracted using a modified CTAB method (Zhou et al., 2006). The mycobiont ITS segments were then amplified using the fungal specific primer A d v a n c e P u b l i c a t i o n Table 1. ...
January 2006
