Christophides GK

References (5)

Title : Widespread divergence between incipient Anopheles gambiae species revealed by whole genome sequences - Lawniczak_2010_Science_330_512
Author(s) : Lawniczak MK , Emrich SJ , Holloway AK , Regier AP , Olson M , White B , Redmond S , Fulton L , Appelbaum E , Godfrey J , Farmer C , Chinwalla A , Yang SP , Minx P , Nelson J , Kyung K , Walenz BP , Garcia-Hernandez E , Aguiar M , Viswanathan LD , Rogers YH , Strausberg RL , Saski CA , Lawson D , Collins FH , Kafatos FC , Christophides GK , Clifton SW , Kirkness EF , Besansky NJ
Ref : Science , 330 :512 , 2010
Abstract : The Afrotropical mosquito Anopheles gambiae sensu stricto, a major vector of malaria, is currently undergoing speciation into the M and S molecular forms. These forms have diverged in larval ecology and reproductive behavior through unknown genetic mechanisms, despite considerable levels of hybridization. Previous genome-wide scans using gene-based microarrays uncovered divergence between M and S that was largely confined to gene-poor pericentromeric regions, prompting a speciation-with-ongoing-gene-flow model that implicated only about 3% of the genome near centromeres in the speciation process. Here, based on the complete M and S genome sequences, we report widespread and heterogeneous genomic divergence inconsistent with appreciable levels of interform gene flow, suggesting a more advanced speciation process and greater challenges to identify genes critical to initiating that process.
ESTHER : Lawniczak_2010_Science_330_512
PubMedSearch : Lawniczak_2010_Science_330_512
PubMedID: 20966253
Gene_locus related to this paper: anoga-Q7PVF9 , anoga-q7q837 , 9dipt-a0a182ksz6 , anost-a0a182xxz0 , anost-a0a182xzf1 , anoga-q7q887

Title : A comprehensive survey of the Plasmodium life cycle by genomic, transcriptomic, and proteomic analyses - Hall_2005_Science_307_82
Author(s) : Hall N , Karras M , Raine JD , Carlton JM , Kooij TW , Berriman M , Florens L , Janssen CS , Pain A , Christophides GK , James K , Rutherford K , Harris B , Harris D , Churcher C , Quail MA , Ormond D , Doggett J , Trueman HE , Mendoza J , Bidwell SL , Rajandream MA , Carucci DJ , Yates JR, 3rd , Kafatos FC , Janse CJ , Barrell B , Turner CM , Waters AP , Sinden RE
Ref : Science , 307 :82 , 2005
Abstract : Plasmodium berghei and Plasmodium chabaudi are widely used model malaria species. Comparison of their genomes, integrated with proteomic and microarray data, with the genomes of Plasmodium falciparum and Plasmodium yoelii revealed a conserved core of 4500 Plasmodium genes in the central regions of the 14 chromosomes and highlighted genes evolving rapidly because of stage-specific selective pressures. Four strategies for gene expression are apparent during the parasites' life cycle: (i) housekeeping; (ii) host-related; (iii) strategy-specific related to invasion, asexual replication, and sexual development; and (iv) stage-specific. We observed posttranscriptional gene silencing through translational repression of messenger RNA during sexual development, and a 47-base 3' untranslated region motif is implicated in this process.
ESTHER : Hall_2005_Science_307_82
PubMedSearch : Hall_2005_Science_307_82
PubMedID: 15637271
Gene_locus related to this paper: plaba-q4ymx5 , plaba-q4ysr8 , plaba-q4ytp7 , plaba-q4yy11 , plaba-q4z0q9 , plaba-q4z5y0 , plaba-q4z5z8 , plaba-q4z215 , plach-q4x817 , plach-q4xb56 , plach-q4xbi1 , plach-q4xd64 , plach-q4xfc7 , plach-q4xm16 , plach-q4xmx8 , plach-q4xmy0 , plach-q4xsf9 , plach-q4xsg4 , plach-q4xsw6 , plach-q4xvc8 , plach-q4xxw0 , plach-q4xxy1 , plach-q4y0k9 , plach-q4y5u9 , plach-q4y6j0 , plach-q4y638 , plach-q4y740 , playo-PY05572 , playo-q7rq09

Title : Gene expression in insecticide resistant and susceptible Anopheles gambiae strains constitutively or after insecticide exposure - Vontas_2005_Insect.Mol.Biol_14_509
Author(s) : Vontas J , Blass C , Koutsos AC , David JP , Kafatos FC , Louis C , Hemingway J , Christophides GK , Ranson H
Ref : Insect Molecular Biology , 14 :509 , 2005
Abstract : A microarray containing approximately 20 000 expressed sequence tags (ESTs; 11 760 unique EST clusters) from the malaria vector, Anopheles gambiae, was used to monitor differences in global gene expression in two insecticide resistant and one susceptible strains. Statistical analysis identified 77 ESTs that were differentially transcribed among the three strains. These include the cytochrome P450 CYP314A1, over-transcribed in the DDT resistant ZAN/U strain, and many genes that belong to families not usually associated with insecticide resistance, such as peptidases, sodium/calcium exchangers and genes implicated in lipid and carbohydrate metabolism. Short-term (6 and 10 h) effects of exposure of the pyrethroid resistant RSP strain to permethrin were also detected. Several genes belonging to enzyme families already implicated in insecticide or xenobiotic detoxification were induced, including the carboxylesterase COEAE2F gene and members of the UDP-glucuronosyl transferase and nitrilase families.
ESTHER : Vontas_2005_Insect.Mol.Biol_14_509
PubMedSearch : Vontas_2005_Insect.Mol.Biol_14_509
PubMedID: 16164607

Title : The genome sequence of the malaria mosquito Anopheles gambiae - Holt_2002_Science_298_129
Author(s) : Holt RA , Subramanian GM , Halpern A , Sutton GG , Charlab R , Nusskern DR , Wincker P , Clark AG , Ribeiro JM , Wides R , Salzberg SL , Loftus B , Yandell M , Majoros WH , Rusch DB , Lai Z , Kraft CL , Abril JF , Anthouard V , Arensburger P , Atkinson PW , Baden H , de Berardinis V , Baldwin D , Benes V , Biedler J , Blass C , Bolanos R , Boscus D , Barnstead M , Cai S , Center A , Chaturverdi K , Christophides GK , Chrystal MA , Clamp M , Cravchik A , Curwen V , Dana A , Delcher A , Dew I , Evans CA , Flanigan M , Grundschober-Freimoser A , Friedli L , Gu Z , Guan P , Guigo R , Hillenmeyer ME , Hladun SL , Hogan JR , Hong YS , Hoover J , Jaillon O , Ke Z , Kodira C , Kokoza E , Koutsos A , Letunic I , Levitsky A , Liang Y , Lin JJ , Lobo NF , Lopez JR , Malek JA , McIntosh TC , Meister S , Miller J , Mobarry C , Mongin E , Murphy SD , O'Brochta DA , Pfannkoch C , Qi R , Regier MA , Remington K , Shao H , Sharakhova MV , Sitter CD , Shetty J , Smith TJ , Strong R , Sun J , Thomasova D , Ton LQ , Topalis P , Tu Z , Unger MF , Walenz B , Wang A , Wang J , Wang M , Wang X , Woodford KJ , Wortman JR , Wu M , Yao A , Zdobnov EM , Zhang H , Zhao Q , Zhao S , Zhu SC , Zhimulev I , Coluzzi M , della Torre A , Roth CW , Louis C , Kalush F , Mural RJ , Myers EW , Adams MD , Smith HO , Broder S , Gardner MJ , Fraser CM , Birney E , Bork P , Brey PT , Venter JC , Weissenbach J , Kafatos FC , Collins FH , Hoffman SL
Ref : Science , 298 :129 , 2002
Abstract : Anopheles gambiae is the principal vector of malaria, a disease that afflicts more than 500 million people and causes more than 1 million deaths each year. Tenfold shotgun sequence coverage was obtained from the PEST strain of A. gambiae and assembled into scaffolds that span 278 million base pairs. A total of 91% of the genome was organized in 303 scaffolds; the largest scaffold was 23.1 million base pairs. There was substantial genetic variation within this strain, and the apparent existence of two haplotypes of approximately equal frequency ("dual haplotypes") in a substantial fraction of the genome likely reflects the outbred nature of the PEST strain. The sequence produced a conservative inference of more than 400,000 single-nucleotide polymorphisms that showed a markedly bimodal density distribution. Analysis of the genome sequence revealed strong evidence for about 14,000 protein-encoding transcripts. Prominent expansions in specific families of proteins likely involved in cell adhesion and immunity were noted. An expressed sequence tag analysis of genes regulated by blood feeding provided insights into the physiological adaptations of a hematophagous insect.
ESTHER : Holt_2002_Science_298_129
PubMedSearch : Holt_2002_Science_298_129
PubMedID: 12364791
Gene_locus related to this paper: anoga-a0nb77 , anoga-a0nbp6 , anoga-a0neb7 , anoga-a0nei9 , anoga-a0nej0 , anoga-a0ngj1 , anoga-a7ut12 , anoga-a7uuz9 , anoga-ACHE1 , anoga-ACHE2 , anoga-agCG44620 , anoga-agCG44666 , anoga-agCG45273 , anoga-agCG45279 , anoga-agCG45511 , anoga-agCG46741 , anoga-agCG47651 , anoga-agCG47655 , anoga-agCG47661 , anoga-agCG47690 , anoga-agCG48797 , anoga-AGCG49362 , anoga-agCG49462 , anoga-agCG49870 , anoga-agCG49872 , anoga-agCG49876 , anoga-agCG50851 , anoga-agCG51879 , anoga-agCG52383 , anoga-agCG54954 , anoga-AGCG55021 , anoga-agCG55401 , anoga-agCG55408 , anoga-agCG56978 , anoga-ebiG239 , anoga-ebiG2660 , anoga-ebiG5718 , anoga-ebiG5974 , anoga-ebiG8504 , anoga-ebiG8742 , anoga-glita , anoga-nrtac , anoga-q5tpv0 , anoga-Q5TVS6 , anoga-q7pm39 , anoga-q7ppw9 , anoga-q7pq17 , anoga-Q7PQT0 , anoga-q7q8m4 , anoga-q7q626 , anoga-q7qa14 , anoga-q7qa52 , anoga-q7qal7 , anoga-q7qbj0 , anoga-f5hl20 , anoga-q7qkh2 , anoga-a0a1s4h1y7 , anoga-q7q887

Title : Comparative genome and proteome analysis of Anopheles gambiae and Drosophila melanogaster - Zdobnov_2002_Science_298_149
Author(s) : Zdobnov EM , von Mering C , Letunic I , Torrents D , Suyama M , Copley RR , Christophides GK , Thomasova D , Holt RA , Subramanian GM , Mueller HM , Dimopoulos G , Law JH , Wells MA , Birney E , Charlab R , Halpern AL , Kokoza E , Kraft CL , Lai Z , Lewis S , Louis C , Barillas-Mury C , Nusskern D , Rubin GM , Salzberg SL , Sutton GG , Topalis P , Wides R , Wincker P , Yandell M , Collins FH , Ribeiro J , Gelbart WM , Kafatos FC , Bork P
Ref : Science , 298 :149 , 2002
Abstract : Comparison of the genomes and proteomes of the two diptera Anopheles gambiae and Drosophila melanogaster, which diverged about 250 million years ago, reveals considerable similarities. However, numerous differences are also observed; some of these must reflect the selection and subsequent adaptation associated with different ecologies and life strategies. Almost half of the genes in both genomes are interpreted as orthologs and show an average sequence identity of about 56%, which is slightly lower than that observed between the orthologs of the pufferfish and human (diverged about 450 million years ago). This indicates that these two insects diverged considerably faster than vertebrates. Aligned sequences reveal that orthologous genes have retained only half of their intron/exon structure, indicating that intron gains or losses have occurred at a rate of about one per gene per 125 million years. Chromosomal arms exhibit significant remnants of homology between the two species, although only 34% of the genes colocalize in small "microsyntenic" clusters, and major interarm transfers as well as intra-arm shuffling of gene order are detected.
ESTHER : Zdobnov_2002_Science_298_149
PubMedSearch : Zdobnov_2002_Science_298_149
PubMedID: 12364792