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Gliophorusglutinosus sp. nov. (Hygrophoraceae, Agaricales) from Eastern Himalayan region of India.

ABSTRACT: An interesting species of the genus Gliophorus (sect.Glutinosae), collected from Sikkim Himalaya in India, is described here as G.glutinosus sp. nov. after thorough morphological examination and phylogenetic analysis. The species is mainly characterised by its strongly glutinous basidiomata throughout, particularly on the twisted stipe, decurrent lamellae with glutinous edge, gelatinised cheilocystidia, presence of pleuropseudocystidia and absence of clamps in hyphae of the pileipellis. This communication includes detailed morphological description, illustrations, comparison with the allied taxa, nrITS based phylogeny of this novel taxon and a key to the species under Gliophorussect.Glutinosae.

SUBMITTER: Chakraborty D

PROVIDER: S-EPMC6310712 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Gliophorusglutinosus sp. nov. (Hygrophoraceae, Agaricales) from Eastern Himalayan region of India.

Chakraborty Dyutiparna D Das Kanad K Vizzini Alfredo A

MycoKeys 20181221 44

An interesting species of the genus Gliophorus (sect.Glutinosae), collected from Sikkim Himalaya in India, is described here as G.glutinosus sp. nov. after thorough morphological examination and phylogenetic analysis. The species is mainly characterised by its strongly glutinous basidiomata throughout, particularly on the twisted stipe, decurrent lamellae with glutinous edge, gelatinised cheilocystidia, presence of pleuropseudocystidia and absence of clamps in hyphae of the pileipe ...[more]

PMID: 30613182

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Project description:The Eastern Himalayan region of Northeast (NE) India is home to a large number of indigenous rice varieties, which may serve as a valuable genetic resource for future crop improvement to meet the ever-increasing demand for food production. However, these varieties are rapidly being lost due to changes in land-use and agricultural practices, which favor agronomically improved varieties. A detailed understanding of the genetic structure and diversity of indigenous rice varieties is crucial for efficient utilization of rice genetic resources and for developing suitable conservation strategies. To explore the genetic structure and diversity of rice varieties in NE India, we genotyped 300 individuals of 24 indigenous rice varieties representing sali, boro, jum and glutinous types, 5 agronomically improved varieties, and one wild rice species (O. rufipogon) using seven SSR markers. A total of 85 alleles and a very high level of gene diversity (0.776) were detected among the indigenous rice varieties of the region. Considerable level of genetic variation was found within indigenous varieties whereas improved varieties were monoporphic across all loci. The comparison of genetic diversity among different types of rice revealed that sali type possessed the highest gene diversity (0.747) followed by jum (0.627), glutinous (0.602) and boro (0.596) types of indigenous rice varieties, while the lowest diversity was detected in agronomically improved varieties (0.459). The AMOVA results showed that 66% of the variation was distributed among varieties indicating a very high level of genetic differentiation in rice varieties in the region. Two major genetically defined clusters corresponding to indica and japonica groups were detected in rice varieties of the region. Overall, traditionally cultivated indigenous rice varieties in NE India showed high levels of genetic diversity comparable to levels of genetic diversity reported from wild rice populations in various parts of the world. The efforts for conservation of rice germplasm in NE India should consider saving rice varieties representing different types with specific emphasis given to sali and jum types. The protection against the loss of vast genetic diversity found in indigenous rice varieties in NE India is crucial for maintaining future food security in the changing world.

Dataset Information

Gliophorusglutinosus sp. nov. (Hygrophoraceae, Agaricales) from Eastern Himalayan region of India.

Publications

<i>Gliophorusglutinosus</i> sp. nov. (Hygrophoraceae, Agaricales) from Eastern Himalayan region of India.

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