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Comparative genomics analysis of Aspergillus glaucus CCHA provides insights into the adaptation of stress response

ABSTRACT: Comparative genomics analysis of Aspergillus glaucus CCHA provides insights into the adaptation of stress response

PROVIDER: PRJNA408254 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6056970.fastq.gz	Fastqsanger.gz
	SRR6056971.fastq.gz	Fastqsanger.gz
	SRR6056972.fastq.gz	Fastqsanger.gz
	SRR6056967.fastq.gz	Fastqsanger.gz
	SRR6056968.fastq.gz	Fastqsanger.gz

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Comparative genomics analysis of Aspergillus glaucus CCHA provides insights into the adaptation of stress response

Project description:Aspergillus display an amazing level of diversity in physiologies, and environments that they occupy. Strategies for coping with diverse environmental stresses have evolved in different Aspergillus species. Therefore, Aspergillus are considered to be good models for investigating the adaptation and response to many natural and anthropogenic environmental stressors. Recent genome sequencing projects in several Aspergillus have provided insights into the molecular and genetic mechanisms underlying their responses to some environmental stressors. However, to better clarify the conserved and differentiated features of the adaptive response to specific stresses and to trace the evolutionary process of environmental adaptation and response in Aspergillus, insight from more Aspergillus species with different evolutionary positions, such as A. glaucus, and thus offer a large number of models of adaptation and response to various environmental stresses. Here, we report a high-quality reference genome assembly of A. glaucus CCHA from the surface of wild vegetation around saltern of Jilin, China, based on sequence data from whole-genome shotgun (WGS) sequencing platforms of Illumina solexa technologies. This assembly contains 106 scaffolds ( >1 Kb; N50 = ~0.795 Mb), has a length of ~28.9 Mb and covers ~97% of the predicted genome size (~120 Mb). Together with the data analyses from comprehensive transcriptomic surveys and comparative genomic analyses, we aim to obtain new insights into molecular mechanisms of the adaptation to living at high salt in the saltern

2017-09-26 | GSE104102 | GEO

Comparative transcriptomic analysis provides insights into high-altitude adaptation

Project description:Comparative transcriptomic analysis provides insights into high-altitude adaptation

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Anodorhynchus glaucus

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Genome sequencing of <i>Aspergillus glaucus</i> 'CCHA' provides insights into salt-stress adaptation.

Project description:Aspergillus, as a genus of filamentous fungi, has members that display a variety of different behavioural strategies, which are affected by various environmental factors. The decoded genomic sequences of many species vary greatly in their evolutionary similarities, encouraging studies on the functions and evolution of the Aspergillus genome in complex natural environments. Here, we present the 26 Mb de novo assembled high-quality reference genome of Aspergillus glaucus 'China Changchun halophilic Aspergillus' (CCHA), which was isolated from the surface of plants growing near a salt mine in Jilin, China, based on data from whole-genome shotgun sequencing using Illumina Solexa technology. The sequence, coupled with data from comprehensive transcriptomic survey analyses, indicated that the redox state and transmembrane transport might be critical molecular mechanisms for the adaptation of A. glaucus 'CCHA' to the high-salt environment of the saltern. The isolation of salt tolerance-related genes, such as CCHA-2114, and their overexpression in Escherichia coli demonstrated that A. glucus 'CCHA' is an excellent organism for the isolation and identification of salt tolerant-related genes. These data expand our understanding of the evolution and functions of fungal and microbial genomes, and offer multiple target genes for crop salt-tolerance improvement through genetic engineering.

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Comparative Genomics Provides Insights Into the Marine Adaptation in Sponge-Derived Kocuriaflava S43.

Project description:Sponge-derived actinomycetes represent a significant component of marine actinomycetes. Members of the genus Kocuria are distributed in various habitats such as soil, rhizosphere, clinical specimens, marine sediments, and sponges, however, to date, little is known about the mechanism of their environmental adaptation. Kocuria flava S43 was isolated from a coastal sponge. Phylogenetic analysis revealed that it was closely related to the terrestrial airborne K. flava HO-9041. In this study, to gain insights into the marine adaptation in K. flava S43 we sequenced the draft genome for K. flava S43 by third generation sequencing (TGS) and compared it with those of K. flava HO-9041 and some other Kocuria relatives. Comparative genomics and phylogenetic analyses revealed that K. flava S43 might adapt to the marine environment mainly by increasing the number of the genes linked to potassium homeostasis, resistance to heavy metals and phosphate metabolism, and acquiring the genes associated with electron transport and the genes encoding ATP-binding cassette (ABC) transporter, aquaporin, and thiol/disulfide interchange protein. Notably, gene acquisition was probably a primary mechanism of environmental adaptation in K. flava S43. Furthermore, this study also indicated that the Kocuria isolates from various marine and hyperosmotic environments possessed common genetic basis for environmental adaptation.

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