Hill CA

References (4)

Title : Using comparative genomics to decode the genetics of acaricide resistance - Van Zee_2018_Front.Biosci.(Landmark.Ed)_23_889
Author(s) : Van Zee JP , Hill CA
Ref : Front Biosci (Landmark Ed) , 23 :889 , 2018
Abstract : The availability of genome assemblies and other genomic resources is facilitating investigations of complex genetic traits for several species of ticks. Understanding the genetics of acaricide resistance is a priority for tick and tick-borne disease control. The synaptic enzyme acetylcholinesterase (ACE) is recognized as the target of organophosphates (OPs) and carbamates, and mutations in ACE have been tied to resistance. Multiple studies support three ACE (ace) loci in R. microplus but the molecular basis of OP-resistance in this tick remains elusive. Here, we exploited the genome assembly of the black-legged tick Ixodes scapularis and comparative genomic analyses to explore the complement of tick ACEs and their potential roles in OP resistance. We identified eight putative ace loci (IscaACE1a, 1b, 2a-c, 3a-c) in I. scapularis. Molecular analyses and homology modeling suggest ACE activity for IscaACE1a. Our analyses reveal the molecular complexity of the I. scapularis ace gene family, highlight the need for functional studies of ACEs in species of the Ixodidae, and reveal potential challenges to management of OP resistance in ticks.
ESTHER : Van Zee_2018_Front.Biosci.(Landmark.Ed)_23_889
PubMedSearch : Van Zee_2018_Front.Biosci.(Landmark.Ed)_23_889
PubMedID: 28930579

Title : Acetylcholinesterase 1 in populations of organophosphate-resistant North American strains of the cattle tick, Rhipicephalus microplus (Acari: Ixodidae) - Bendele_2015_Parasitol.Res_114_3027
Author(s) : Bendele KG , Guerrero FD , Miller RJ , Li AY , Barrero RA , Moolhuijzen PM , Black M , McCooke JK , Meyer J , Hill CA , Bellgard MI
Ref : Parasitol Res , 114 :3027 , 2015
Abstract : Rhipicephalus microplus, the cattle fever tick, is a global economic problem to the cattle industry due to direct infestation of cattle and pathogens transmitted during feeding. Cattle fever tick outbreaks continue to occur along the Mexico-US border even though the tick has been eradicated from the USA. The organophosphate (OP) coumaphos targets acetylcholinesterase (AChE) and is the approved acaricide for eradicating cattle fever tick outbreaks. There is evidence for coumaphos resistance developing in cattle ticks in Mexico, and OP-resistant R. microplus ticks were discovered in outbreak populations of Texas in 2005. The molecular basis of coumaphos resistance is not known, and our study was established to gather further information on whether AChE1 is involved in the resistance mechanism. We also sought information on allele diversity in tick populations with different levels of coumaphos resistance. The overarching project goal was to define OP resistance-associated gene mutations such that a DNA-based diagnostic assay could be developed to assist the management of resistance. Three different AChE transcripts have been reported in R. microplus, and supporting genomic and transcriptomic data are available at CattleTickBase. Here, we report the complete R. microplus AChE1 gene ascertained by sequencing a bacterial artificial chromosome clone containing the entire coding region and the flanking 5' and 3' regions. We also report AChE1 sequences of larval ticks from R. microplus strains having different sensitivities to OP. To accomplish this, we sequenced a 669-bp region of the AChE1 gene corresponding to a 223 amino acid region of exon 2 to assess alleles in seven strains of R. microplus with varying OP resistance phenotypes. We identified 72 AChE1 sequence variants, 2 of which are strongly associated with OP-resistant phenotypes. Esterase-like sequences from the R. microplus transcriptome RmiTr Version 1.0 were compared to the available sequence databases to identify other transcripts with similarity to AChE1.
ESTHER : Bendele_2015_Parasitol.Res_114_3027
PubMedSearch : Bendele_2015_Parasitol.Res_114_3027
PubMedID: 25952704
Gene_locus related to this paper: boomi-ACHE2

Title : Genome sequences of the human body louse and its primary endosymbiont provide insights into the permanent parasitic lifestyle - Kirkness_2010_Proc.Natl.Acad.Sci.U.S.A_107_12168
Author(s) : Kirkness EF , Haas BJ , Sun W , Braig HR , Perotti MA , Clark JM , Lee SH , Robertson HM , Kennedy RC , Elhaik E , Gerlach D , Kriventseva EV , Elsik CG , Graur D , Hill CA , Veenstra JA , Walenz B , Tubio JM , Ribeiro JM , Rozas J , Johnston JS , Reese JT , Popadic A , Tojo M , Raoult D , Reed DL , Tomoyasu Y , Kraus E , Mittapalli O , Margam VM , Li HM , Meyer JM , Johnson RM , Romero-Severson J , Vanzee JP , Alvarez-Ponce D , Vieira FG , Aguade M , Guirao-Rico S , Anzola JM , Yoon KS , Strycharz JP , Unger MF , Christley S , Lobo NF , Seufferheld MJ , Wang N , Dasch GA , Struchiner CJ , Madey G , Hannick LI , Bidwell S , Joardar V , Caler E , Shao R , Barker SC , Cameron S , Bruggner RV , Regier A , Johnson J , Viswanathan L , Utterback TR , Sutton GG , Lawson D , Waterhouse RM , Venter JC , Strausberg RL , Berenbaum MR , Collins FH , Zdobnov EM , Pittendrigh BR
Ref : Proc Natl Acad Sci U S A , 107 :12168 , 2010
Abstract : As an obligatory parasite of humans, the body louse (Pediculus humanus humanus) is an important vector for human diseases, including epidemic typhus, relapsing fever, and trench fever. Here, we present genome sequences of the body louse and its primary bacterial endosymbiont Candidatus Riesia pediculicola. The body louse has the smallest known insect genome, spanning 108 Mb. Despite its status as an obligate parasite, it retains a remarkably complete basal insect repertoire of 10,773 protein-coding genes and 57 microRNAs. Representing hemimetabolous insects, the genome of the body louse thus provides a reference for studies of holometabolous insects. Compared with other insect genomes, the body louse genome contains significantly fewer genes associated with environmental sensing and response, including odorant and gustatory receptors and detoxifying enzymes. The unique architecture of the 18 minicircular mitochondrial chromosomes of the body louse may be linked to the loss of the gene encoding the mitochondrial single-stranded DNA binding protein. The genome of the obligatory louse endosymbiont Candidatus Riesia pediculicola encodes less than 600 genes on a short, linear chromosome and a circular plasmid. The plasmid harbors a unique arrangement of genes required for the synthesis of pantothenate, an essential vitamin deficient in the louse diet. The human body louse, its primary endosymbiont, and the bacterial pathogens that it vectors all possess genomes reduced in size compared with their free-living close relatives. Thus, the body louse genome project offers unique information and tools to use in advancing understanding of coevolution among vectors, symbionts, and pathogens.
ESTHER : Kirkness_2010_Proc.Natl.Acad.Sci.U.S.A_107_12168
PubMedSearch : Kirkness_2010_Proc.Natl.Acad.Sci.U.S.A_107_12168
PubMedID: 20566863
Gene_locus related to this paper: pedhb-ACHE1 , pedhb-ACHE2 , pedhc-e0v9b5 , pedhc-e0v9b6 , pedhc-e0v9b7 , pedhc-e0vbv5 , pedhc-e0vcd0 , pedhc-e0vcl7 , pedhc-e0vd69 , pedhc-e0ve50 , pedhc-e0vel6 , pedhc-e0vel7 , pedhc-e0vf98 , pedhc-e0vfs8 , pedhc-e0vfv0 , pedhc-e0vg01 , pedhc-e0vha2 , pedhc-e0vha4 , pedhc-e0vi52 , pedhc-e0vp42 , pedhc-e0vqu6 , pedhc-e0vuj9 , pedhc-e0vup6 , pedhc-e0vv55 , pedhc-e0vwv3 , pedhc-e0vxf7 , pedhc-e0vxg1 , pedhc-e0w4a6 , pedhc-e0w4c8 , pedhc-e0w271 , pedhc-e0w444 , pedhc-e0vym0 , pedhc-e0vdk9 , pedhc-e0vk10 , pedhc-e0vgw4 , pedhc-e0vgw7 , pedhc-e0vga1 , pedhc-e0w3s1 , pedhc-e0vzt2

Title : Genome sequence of Aedes aegypti, a major arbovirus vector - Nene_2007_Science_316_1718
Author(s) : Nene V , Wortman JR , Lawson D , Haas B , Kodira C , Tu ZJ , Loftus B , Xi Z , Megy K , Grabherr M , Ren Q , Zdobnov EM , Lobo NF , Campbell KS , Brown SE , Bonaldo MF , Zhu J , Sinkins SP , Hogenkamp DG , Amedeo P , Arensburger P , Atkinson PW , Bidwell S , Biedler J , Birney E , Bruggner RV , Costas J , Coy MR , Crabtree J , Crawford M , Debruyn B , Decaprio D , Eiglmeier K , Eisenstadt E , El-Dorry H , Gelbart WM , Gomes SL , Hammond M , Hannick LI , Hogan JR , Holmes MH , Jaffe D , Johnston JS , Kennedy RC , Koo H , Kravitz S , Kriventseva EV , Kulp D , LaButti K , Lee E , Li S , Lovin DD , Mao C , Mauceli E , Menck CF , Miller JR , Montgomery P , Mori A , Nascimento AL , Naveira HF , Nusbaum C , O'Leary S , Orvis J , Pertea M , Quesneville H , Reidenbach KR , Rogers YH , Roth CW , Schneider JR , Schatz M , Shumway M , Stanke M , Stinson EO , Tubio JM , Vanzee JP , Verjovski-Almeida S , Werner D , White O , Wyder S , Zeng Q , Zhao Q , Zhao Y , Hill CA , Raikhel AS , Soares MB , Knudson DL , Lee NH , Galagan J , Salzberg SL , Paulsen IT , Dimopoulos G , Collins FH , Birren B , Fraser-Liggett CM , Severson DW
Ref : Science , 316 :1718 , 2007
Abstract : We present a draft sequence of the genome of Aedes aegypti, the primary vector for yellow fever and dengue fever, which at approximately 1376 million base pairs is about 5 times the size of the genome of the malaria vector Anopheles gambiae. Nearly 50% of the Ae. aegypti genome consists of transposable elements. These contribute to a factor of approximately 4 to 6 increase in average gene length and in sizes of intergenic regions relative to An. gambiae and Drosophila melanogaster. Nonetheless, chromosomal synteny is generally maintained among all three insects, although conservation of orthologous gene order is higher (by a factor of approximately 2) between the mosquito species than between either of them and the fruit fly. An increase in genes encoding odorant binding, cytochrome P450, and cuticle domains relative to An. gambiae suggests that members of these protein families underpin some of the biological differences between the two mosquito species.
ESTHER : Nene_2007_Science_316_1718
PubMedSearch : Nene_2007_Science_316_1718
PubMedID: 17510324
Gene_locus related to this paper: aedae-ACHE , aedae-ACHE1 , aedae-glita , aedae-q0iea6 , aedae-q0iev6 , aedae-q0ifn6 , aedae-q0ifn8 , aedae-q0ifn9 , aedae-q0ifp0 , aedae-q0ig41 , aedae-q1dgl0 , aedae-q1dh03 , aedae-q1dh19 , aedae-q1hqe6 , aedae-Q8ITU8 , aedae-Q8MMJ6 , aedae-Q8T9V6 , aedae-q16e91 , aedae-q16f04 , aedae-q16f25 , aedae-q16f26 , aedae-q16f28 , aedae-q16f29 , aedae-q16f30 , aedae-q16gq5 , aedae-q16iq5 , aedae-q16je0 , aedae-q16je1 , aedae-q16je2 , aedae-q16ks8 , aedae-q16lf2 , aedae-q16lv6 , aedae-q16m61 , aedae-q16mc1 , aedae-q16mc6 , aedae-q16mc7 , aedae-q16md1 , aedae-q16ms7 , aedae-q16nk5 , aedae-q16rl5 , aedae-q16rz9 , aedae-q16si8 , aedae-q16t49 , aedae-q16wf1 , aedae-q16x18 , aedae-q16xp8 , aedae-q16xu6 , aedae-q16xw5 , aedae-q16xw6 , aedae-q16y04 , aedae-q16y05 , aedae-q16y06 , aedae-q16y07 , aedae-q16y39 , aedae-q16y40 , aedae-q16yg4 , aedae-q16z03 , aedae-q17aa7 , aedae-q17av1 , aedae-q17av2 , aedae-q17av3 , aedae-q17av4 , aedae-q17b28 , aedae-q17b29 , aedae-q17b30 , aedae-q17b31 , aedae-q17b32 , aedae-q17bm3 , aedae-q17bm4 , aedae-q17bv7 , aedae-q17c44 , aedae-q17cz1 , aedae-q17d32 , aedae-q17g39 , aedae-q17g40 , aedae-q17g41 , aedae-q17g42 , aedae-q17g43 , aedae-q17g44 , aedae-q17gb8 , aedae-q17gr3 , aedae-q17if7 , aedae-q17if9 , aedae-q17ig1 , aedae-q17ig2 , aedae-q17is4 , aedae-q17l09 , aedae-q17m26 , aedae-q17mg9 , aedae-q17mv4 , aedae-q17mv5 , aedae-q17mv6 , aedae-q17mv7 , aedae-q17mw8 , aedae-q17mw9 , aedae-q17nw5 , aedae-q17nx5 , aedae-q17pa4 , aedae-q17q69 , aedae-q170k7 , aedae-q171y4 , aedae-q172e0 , aedae-q176i8 , aedae-q176j0 , aedae-q177k1 , aedae-q177k2 , aedae-q177l9 , aedae-j9hic3 , aedae-q179r9 , aedae-u483 , aedae-j9hj23 , aedae-q17d68 , aedae-q177c7 , aedae-q0ifp1 , aedae-a0a1s4fx83 , aedae-a0a1s4g2m0 , aedae-q1hr49