scholarly journals Postgenomic technologies in practical forestry: development of genome-wide markers for timber origin identification and other applications

2019 ◽  
Vol 9 (1) ◽  
pp. 9-16
Author(s):  
Константин Крутовский ◽  
Konstantin Krutovskiy ◽  
Юлия Путинцева ◽  
Yuliya Putinceva ◽  
Наталья Орешкова ◽  
...  
Keyword(s):  
Genetic Markers ◽  
Russian Federation ◽  
Timber Harvest ◽  
Regulatory Elements ◽  
Pinus Sibirica ◽  
Whole Genome ◽  
Conifer Species ◽  
Siberian Stone Pine ◽  
Genome Wide ◽  
The Russian Federation

The forest genetics, tree improvement and protection can greatly benefit from complete genome sequence data made recently available for several major conifer species. They allow to identify and annotate genes, other functional elements (sRNA, transcription factors, regulatory elements, etc.) and genetic networks that control adaptation and dis-ease resistance. They can be used to develop highly informative genetic markers that can be used in population genetic studies to create database of barcodes for individual populations to fight illegal timber harvest and trade. They are very much needed for development of genome-wide genetic markers for association studies for linking genetic variation (SNPs, alleles, haplotypes, and genotypes) with environmental factors, adaptive traits and phenotypes for better understanding genetic control of agronomically and economically important traits. They can be also used to develop genome-wide genetic markers for genomic-assisted selection to breed for better adapted, stress resistant and climate change resilient trees with desirable quality ecological and economic traits. Finally, whole genome sequences allow to integrate proteomics, transcriptomics and metabolomics and provide reference genomes for resequencing. In this brief summary we would like to present one of many practical applications of genetics and genomics in forestry– development of highly polymorphic and informative molecular genetic markers for several very important boreal for-est species in Eurasia, Siberian larch (Larix sibirica Ledeb.), Siberian stone pine (Pinus sibirica Du Tour) and Scots pine (Pinus sylvestris L.), based on the whole genome data obtained in the “Genomics of the Key Boreal Forest Conifer Species and Their Major Phytopathogens in the Russian Federation” project funded by the Government of the Russian Federation (grant no. 14.Y26.31.0004).

scholarly journals Genome-Wide Systematic Characterization of the NPF Family Genes and Their Transcriptional Responses to Multiple Nutrient Stresses in Allotetraploid Rapeseed

2020 ◽  
Vol 21 (17) ◽  
pp. 5947 ◽  
Author(s):  
Hao Zhang ◽  
Shuang Li ◽  
Mengyao Shi ◽  
Sheliang Wang ◽  
Lei Shi ◽  
...  
Keyword(s):  
N Uptake ◽  
Expression Patterns ◽  
Regulatory Elements ◽  
Peptide Transporter ◽  
Future Research ◽  
Whole Genome ◽  
Transcriptional Responses ◽  
Ammonium Toxicity ◽  
Genome Wide

NITRATE TRANSPORTER 1 (NRT1)/PEPTIDE TRANSPORTER (PTR) family (NPF) proteins can transport various substrates, and play crucial roles in governing plant nitrogen (N) uptake and distribution. However, little is known about the NPF genes in Brassica napus. Here, a comprehensive genome-wide systematic characterization of the NPF family led to the identification of 193 NPF genes in the whole genome of B. napus. The BnaNPF family exhibited high levels of genetic diversity among sub-families but this was conserved within each subfamily. Whole-genome duplication and segmental duplication played a major role in BnaNPF evolution. The expression analysis indicated that a broad range of expression patterns for individual gene occurred in response to multiple nutrient stresses, including N, phosphorus (P) and potassium (K) deficiencies, as well as ammonium toxicity. Furthermore, 10 core BnaNPF genes in response to N stress were identified. These genes contained 6–13 transmembrane domains, located in plasma membrane, that respond discrepantly to N deficiency in different tissues. Robust cis-regulatory elements were identified within the promoter regions of the core genes. Taken together, our results suggest that BnaNPFs are versatile transporters that might evolve new functions in B. napus. Our findings benefit future research on this gene family.

scholarly journals Whole-Genome Sequencing of Six Borrelia miyamotoi Clinical Strains Isolated in Russia

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Konstantin V. Kuleshov ◽  
Joris Koetsveld ◽  
Irina A. Goptar ◽  
Mikhail L. Markelov ◽  
Nadezhda M. Kolyasnikova ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
Genome Sequencing ◽  
Russian Federation ◽  
Complete Sequence ◽  
Whole Genome Sequence ◽  
Borrelia Miyamotoi ◽  
Whole Genome ◽  
The Russian Federation ◽  
Sequencing Platforms ◽  
Generation Sequencing

ABSTRACT Here, we report the whole-genome sequence of six clinical Borrelia miyamotoi isolates from the Russian Federation. Using two independent next-generation sequencing platforms, we determined the complete sequence of the chromosome and several plasmids. All strains have an Asian genotype with 99.8% chromosome nucleotide similarity with B. miyamotoi strain FR64b.

scholarly journals Whole genome sequencing identifies common and rare structural variants contributing to hematologic traits in the NHLBI TOPMed program

2021 ◽  
Author(s):  
Marsha M. Wheeler ◽  
Adrienne M Stilp ◽  
Shuquan Rao ◽  
Bjarni V Halldorsson ◽  
Doruk V Beyter ◽  
...  
Keyword(s):  
Blood Cell ◽  
Whole Genome Sequencing ◽  
Genome Sequencing ◽  
Association Studies ◽  
Regulatory Elements ◽  
Chromatin Domain ◽  
Genome Wide Association Studies ◽  
Whole Genome ◽  
Structural Variants ◽  
Genome Wide

Genome-wide association studies (GWAS) have identified thousands of single nucleotide variants and small indels that contribute to the genetic architecture of hematologic traits. While structural variants (SVs) are known to cause rare blood or hematopoietic disorders, the genome-wide contribution of SVs to quantitative blood cell trait variation is unknown. Here we utilized SVs detected from whole genome sequencing (WGS) in ancestrally diverse participants of the NHLBI TOPMed program (N=50,675). Using single variant tests, we assessed the association of common and rare SVs with red cell-, white cell-, and platelet-related quantitative traits. The results show 33 independent SVs (23 common and 10 rare) reaching genome-wide significance. The majority of significant association signals (N=27) replicated in independent datasets from deCODE genetics and the UK BioBank. Moreover, most trait-associated SVs (N=24) are within 1Mb of previously-reported GWAS loci. SV analyses additionally discovered an association between a complex structural variant on 17p11.2 and white blood cell-related phenotypes. Based on functional annotation, the majority of significant SVs are located in non-coding regions (N=26) and predicted to impact regulatory elements and/or local chromatin domain boundaries in blood cells. We predict that several trait-associated SVs represent the causal variant. This is supported by genome-editing experiments which provide evidence that a deletion associated with lower monocyte counts leads to disruption of an S1PR3 monocyte enhancer and decreased S1PR3 expression.

scholarly journals Whole genome studies of origin, selection and adaptation of the Russian cattle breeds

2019 ◽  
Vol 23 (5) ◽  
pp. 559-568
Author(s):  
N. S. Yudin ◽  
D. M. Larkin
Keyword(s):  
Russian Federation ◽  
Association Studies ◽  
Coat Colour ◽  
Whole Genome ◽  
Cattle Breeds ◽  
Genome Association ◽  
Whole Genome Association ◽  
The Russian Federation ◽  
Signatures Of Selection ◽  
Cattle Domestication

Our review presents several recent studies on the genetic history and signatures of selection in genomes of the native Russian cattle breeds. Most of these works are not easily accessible for the Russian-speaking audience. We describe the origins of appearance of the Russian cattle breeds from the genetics perspective. We point to the links between most of the Russian breeds with the taurine breeds of the European origin and for some Russian breeds with the breeds of the Asian origin. We describe major phylogenetic clusters of the Russian breeds and point to those that still maintain their unique genetics, meaning that their preservation is a priority. In addition, we review the results of the search for signatures of selection in genomes of the Russian cattle breeds. Some unique signatures of selection present in the genomes of so-called “turano-mongolian” cattle (i. e. the Yakut cattle) are described which allowed the Yakut cattle to adapt to harsh environments found above the Polar Circle. Signatures of selection which could help other cattle breeds of the Russian origin to adapt to various climatic condition of the Russian Federation are reviewed. The Russian cattle genomes also contain known signatures of selection related to cattle domestication about 8–10 thousand years ago. The most profound ones include genes related to changes of the coat colour. This phenotype in many cases could be related to the distinction of the first domesticated populations and lead to the formation of so-called land races (primitive breeds). Whole-genome association studies of Russian cattle breeds pointed to a novel gene which could be related to the “white-faced” phenotype and to a gene which is related to body temperature support under the acute cold stress. The data presented in our review could be used for identification of genetic markers to focus on in future efforts on designing new highly productive cattle breeds adapted to climates of the Russian Federation and other countries with similar climates.

scholarly journals Genetic drift dominates genome-wide regulatory evolution following an ancient whole genome duplication in Atlantic salmon

2021 ◽  
Author(s):  
Jukka-Pekka Verta ◽  
Henry J Barton ◽  
Victoria Pritchard ◽  
Craig R Primmer
Keyword(s):  
Atlantic Salmon ◽  
Genetic Drift ◽  
Functional Divergence ◽  
Regulatory Elements ◽  
Functional Redundancy ◽  
Neutral Evolution ◽  
Whole Genome ◽  
Regulatory Evolution ◽  
Evolutionary Diversification ◽  
Genome Wide

Abstract Whole genome duplications (WGD) have been considered as springboards that potentiate lineage diversification through increasing functional redundancy. Divergence in gene regulatory elements is a central mechanism for evolutionary diversification, yet the patterns and processes governing regulatory divergence following events that lead to massive functional redundancy, such as WGD, remain largely unknown. We studied the patterns of divergence and strength of natural selection on regulatory elements in the Atlantic salmon (Salmo salar) genome, which has undergone WGD 100-80 Mya. Using ChIPmentation, we first show that H3K27ac, a histone modification typical to enhancers and promoters, is associated with genic regions, tissue specific transcription factor binding motifs, and with gene transcription levels in immature testes. Divergence in transcription between duplicated genes from WGD (ohnologs) correlated with difference in the number of proximal regulatory elements, but not with promoter elements, suggesting that functional divergence between ohnologs after WGD is mainly driven by enhancers. By comparing H3K27ac regions between duplicated genome blocks, we further show that a longer polyploid state post-WGD has constrained regulatory divergence. Patterns of genetic diversity across natural populations inferred from re-sequencing indicate that recent evolutionary pressures on H3K27ac regions are dominated by largely neutral evolution. In sum, our results suggest that post-WGD functional redundancy in regulatory elements continues to have an impact on the evolution of the salmon genome, promoting largely neutral evolution of regulatory elements despite their association with transcription levels. These results highlight a case where genome-wide regulatory evolution following an ancient WGD is dominated by genetic drift.

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