Social Parasitism in the Honeybee (Apis mellifera) Is Not Controlled by a Single SNP

2019 ◽  
Vol 36 (8) ◽  
pp. 1764-1767 ◽  
Author(s):  
Matthew J Christmas ◽  
Nicholas M A Smith ◽  
Benjamin P Oldroyd ◽  
Matthew T Webster
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Apis Mellifera ◽  
Unknown Function ◽  
Genetic Basis ◽  
Social Parasitism ◽  
Apis Mellifera Capensis ◽  
Nucleotide Polymorphism ◽  
Genome Sequences ◽  
Single Nucleotide

Abstract The Cape bee (Apis mellifera capensis) is a subspecies of the honeybee, in which workers commonly lay diploid unfertilized eggs via a process known as thelytoky. A recent study aimed to map the genetic basis of this trait in the progeny of a single capensis queen where workers laid either diploid (thelytokous) or haploid (arrhenotokous) eggs. A nonsynonymous single nucleotide polymorphism (SNP) in a gene of unknown function was reported to be strongly associated with thelytoky in this colony. Here, we analyze genome sequences from a global sample of A. mellifera and identify populations where the proposed thelytoky allele at this SNP is common but thelytoky is absent. We also analyze genome sequences of three capensis queens produced by thelytoky and find that, contrary to predictions, they do not carry the proposed thelytoky allele. The proposed SNP is therefore neither sufficient nor required to produce thelytoky in A. mellifera.

scholarly journals Prevalence of ACSL (rs6552828) polymorphism among runners

2019 ◽  
Vol 24 ◽  
pp. 121-128
Author(s):  
Sigal Ben-Zaken ◽  
Yoav Meckel ◽  
Dan Nemet ◽  
Alon Eliakim
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Genetic Basis ◽  
Maximal Oxygen Consumption ◽  
Professional Athletes ◽  
Distance Runners ◽  
Nucleotide Polymorphism ◽  
Long Distance ◽  
Single Nucleotide ◽  
The Common

The ACSL A/G polymorphism is associated with endurance trainability. Previous studies have demonstrated that homozygotes of the minor AA allele had a reduced maximal oxygen consumption response to training compared to the common GG allele homozygotes, and that the ACSL A/G single nucleotide polymorphism explained 6.1% of the variance in the VO2max response to endurance training. The contribution of ACSL single nucleotide polymorphism to endurance trainability was shown in nonathletes, however, its potential role in professional athletes is not clear. Moreover, the genetic basis to anaerobic trainability is even less studied. Therefore, the aim of the present study was to examine the prevalence of ACSL single nucleotide polymorphism among professional Israeli long distance runners (n=59), middle distance runners (n=31), sprinters and jumpers (n=48) and non-athletic controls (n=60). The main finding of the present study was that the ACSL1 AA genotype, previously shown to be associated with reduced endurance trainability, was not higher among sprinters and jumpers (15%) compared to middle- (16%) and long-distance runners (15%). This suggests that in contrast to previous studies indicating that the ACSL1 single nucleotide polymorphism may influence endurance trainability among non-athletic individuals, the role of this polymorphism among professional athletes is still not clear.

scholarly journals Modern methods of assessing the taxonomic affiliation of honeybee colonies

2017 ◽  
Vol 15 (4) ◽  
pp. 41-51
Author(s):  
Rustem A. Ilyasov ◽  
Aleksandr V. Poskryakov ◽  
Aleksei G. Nikolenko
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Apis Mellifera ◽  
Gene Pool ◽  
Western Europe ◽  
Body Parts ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Taxonomic Affiliation ◽  
Allozyme Loci ◽  
Continental Climate

At least 30 subspecies of the honeybee Apis mellifera L. were formed allopatrically during the evolution, which spreaded throughout all Africa, Europe and West Asia. The dark forest bee Apis mellifera mellifera is the only and most valuable subspecies for the Northern and Western Europe countries, adapted to productive living in the hard-continental climate of Eurasia. In the past 100 years, natural geographical isolation of subspecies has been disrupted as a result of a human activities. Mass transportations of honeybee colonies beyond the boundaries of their area have been threatened of loss the identity of gene pool of subspecies as a result of hybridization. Preservation of the gene pool of subspecies is possible only when controlling the transportation of honeybee colonies using the methods of identification of taxonomic affiliation of honeybee colonies. Now, dozens of methods have been developed to identify the taxonomic affiliation of honeybee's colony, which are based on the variability of body parts, allozyme loci, mitochondrial DNA loci, microsatellite nuclear loci, sites of single nucleotide polymorphism (SNP). The variability of microsatellite loci and the single nucleotide polymorphism sites have shown the greatest informativeness in identification of the taxonomic affiliation of honeybee's colony.

scholarly journals Draft Genome Sequences of Two Natural Isolates of the Yeast Barnettozyma californica from Ireland, UCD09 and UCD89

2018 ◽  
Vol 6 (25) ◽  
Author(s):  
Alisha A. Mullen ◽  
Ciara D. Lynch ◽  
Shannon M. Hill ◽  
Cian P. Holohan ◽  
Tadhg Ó Cróinín ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Draft Genome ◽  
Snp Analysis ◽  
Nucleotide Polymorphism ◽  
Genome Sequences ◽  
Yeast Genus ◽  
Single Nucleotide ◽  
Content Type ◽  
The Family ◽  
Natural Isolates

ABSTRACT No genome sequence of a species from Barnettozyma, a yeast genus in the family Phaffomycetaceae, is currently available. We isolated two B. californica strains from soils in Ireland and generated draft sequences of their 11.7-Mb genomes. Single nucleotide polymorphism (SNP) analysis showed 20,490 differences between the strains and suggests that B. californica is haploid.

scholarly journals Fully Closed Genome Sequences of Five Type Strains of the Genus  Cronobacter and One Cronobacter sakazakii Strain: TABLE 1

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Deborah Moine ◽  
Mohamed Kassam ◽  
Leen Baert ◽  
Yanjie Tang ◽  
Caroline Barretto ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Source Tracking ◽  
Cronobacter Sakazakii ◽  
Nucleotide Polymorphism ◽  
Genome Sequences ◽  
Single Nucleotide ◽  
Next Generation Sequencing Ngs ◽  
Type Strains ◽  
Reference Genomes ◽  
Generation Sequencing

Cronobacter is associated with infant infections and the consumption of reconstituted infant formula. Here we sequenced and closed six genomes of C. condimenti T , C. muytjensii T , C. universalis T , C. malonaticus T , C. dublinensis T , and C. sakazakii that can be used as reference genomes in single nucleotide polymorphism (SNP)-based next-generation sequencing (NGS) analysis for source tracking investigations.

Single nucleotide polymorphism and asthma: A study on the genetic basis of asthma

2015 ◽  
Author(s):  
Sareh Raeiszadeh Jahromi ◽  
P.A. Mahesh ◽  
B.S. Jayaraj ◽  
Amrutha D. Holla ◽  
Sangeetha Vishweswaraiah ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Genetic Basis ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide
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