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Author Report for: George RA

Title: Assessing the impact of comparative genomic sequence data on the functional annotation of the Drosophila genome
Bergman CM, Pfeiffer BD, Rincon-Limas DE, Hoskins RA, Gnirke A, Mungall CJ, Wang AM, Kronmiller B, Pacleb J and Celniker SE <7 more author(s)> Bergman CM, Pfeiffer BD, Rincon-Limas DE, Hoskins RA, Gnirke A, Mungall CJ, Wang AM, Kronmiller B, Pacleb J, Park S, Stapleton M, Wan K, George RA, de Jong PJ, Botas J, Rubin GM, Celniker SE (- 7)
Ref: Genome Biol, 3:RESEARCH0086, 2002 : PubMed
Abstract


ESTHER: Bergman_2002_Genome.Biol_3_RESEARCH0086
PubMedSearch: Bergman 2002 Genome.Biol 3 RESEARCH0086
PubMedID: 12537575
Gene_locus related to this paper: drops-CG4390, drowi-b4ngb5, droya-q71d76

Abstract

BACKGROUND: It is widely accepted that comparative sequence data can aid the functional annotation of genome sequences; however, the most informative species and features of genome evolution for comparison remain to be determined.
RESULTS: We analyzed conservation in eight genomic regions (apterous, even-skipped, fushi tarazu, twist, and Rhodopsins 1, 2, 3 and 4) from four Drosophila species (D. erecta, D. pseudoobscura, D. willistoni, and D. littoralis) covering more than 500 kb of the D. melanogaster genome. All D. melanogaster genes (and 78-82% of coding exons) identified in divergent species such as D. pseudoobscura show evidence of functional constraint. Addition of a third species can reveal functional constraint in otherwise non-significant pairwise exon comparisons. Microsynteny is largely conserved, with rearrangement breakpoints, novel transposable element insertions, and gene transpositions occurring in similar numbers. Rates of amino-acid substitution are higher in uncharacterized genes relative to genes that have previously been studied. Conserved non-coding sequences (CNCSs) tend to be spatially clustered with conserved spacing between CNCSs, and clusters of CNCSs can be used to predict enhancer sequences.
CONCLUSIONS: Our results provide the basis for choosing species whose genome sequences would be most useful in aiding the functional annotation of coding and cis-regulatory sequences in Drosophila. Furthermore, this work shows how decoding the spatial organization of conserved sequences, such as the clustering of CNCSs, can complement efforts to annotate eukaryotic genomes on the basis of sequence conservation alone.



        

Title: Finishing a whole-genome shotgun: release 3 of the Drosophila melanogaster euchromatic genome sequence
Celniker SE, Wheeler DA, Kronmiller B, Carlson JW, Halpern A, Patel S, Adams M, Champe M, Dugan SP and Rubin GM <22 more author(s)> Celniker SE, Wheeler DA, Kronmiller B, Carlson JW, Halpern A, Patel S, Adams M, Champe M, Dugan SP, Frise E, Hodgson A, George RA, Hoskins RA, Laverty T, Muzny DM, Nelson CR, Pacleb JM, Park S, Pfeiffer BD, Richards S, Sodergren EJ, Svirskas R, Tabor PE, Wan K, Stapleton M, Sutton GG, Venter C, Weinstock G, Scherer SE, Myers EW, Gibbs RA, Rubin GM (- 22)
Ref: Genome Biol, 3:RESEARCH0079, 2002 : PubMed
Abstract


ESTHER: Celniker_2002_Genome.Biol_3_RESEARCH0079
PubMedSearch: Celniker 2002 Genome.Biol 3 RESEARCH0079
PubMedID: 12537568
Gene_locus related to this paper: drome-CG8058, drome-CG9542, drome-CG11309, drome-CG11406, drome-CG17097, drome-CG17374, drome-glita, drome-KRAKEN

Abstract

BACKGROUND: The Drosophila melanogaster genome was the first metazoan genome to have been sequenced by the whole-genome shotgun (WGS) method. Two issues relating to this achievement were widely debated in the genomics community: how correct is the sequence with respect to base-pair (bp) accuracy and frequency of assembly errors? And, how difficult is it to bring a WGS sequence to the accepted standard for finished sequence? We are now in a position to answer these questions.
RESULTS: Our finishing process was designed to close gaps, improve sequence quality and validate the assembly. Sequence traces derived from the WGS and draft sequencing of individual bacterial artificial chromosomes (BACs) were assembled into BAC-sized segments. These segments were brought to high quality, and then joined to constitute the sequence of each chromosome arm. Overall assembly was verified by comparison to a physical map of fingerprinted BAC clones. In the current version of the 116.9 Mb euchromatic genome, called Release 3, the six euchromatic chromosome arms are represented by 13 scaffolds with a total of 37 sequence gaps. We compared Release 3 to Release 2; in autosomal regions of unique sequence, the error rate of Release 2 was one in 20,000 bp.
CONCLUSIONS: The WGS strategy can efficiently produce a high-quality sequence of a metazoan genome while generating the reagents required for sequence finishing. However, the initial method of repeat assembly was flawed. The sequence we report here, Release 3, is a reliable resource for molecular genetic experimentation and computational analysis.



        

Title: The genome sequence of Drosophila melanogaster
Adams MD, Celniker SE, Holt RA, Evans CA, Gocayne JD, Amanatides PG, Scherer SE, Li PW, Hoskins RA and Venter JC <185 more author(s)> Adams MD, Celniker SE, Holt RA, Evans CA, Gocayne JD, Amanatides PG, Scherer SE, Li PW, Hoskins RA, Galle RF, George RA, Lewis SE, Richards S, Ashburner M, Henderson SN, Sutton GG, Wortman JR, Yandell MD, Zhang Q, Chen LX, Brandon RC, Rogers YH, Blazej RG, Champe M, Pfeiffer BD, Wan KH, Doyle C, Baxter EG, Helt G, Nelson CR, Gabor GL, Abril JF, Agbayani A, An HJ, Andrews-Pfannkoch C, Baldwin D, Ballew RM, Basu A, Baxendale J, Bayraktaroglu L, Beasley EM, Beeson KY, Benos PV, Berman BP, Bhandari D, Bolshakov S, Borkova D, Botchan MR, Bouck J, Brokstein P, Brottier P, Burtis KC, Busam DA, Butler H, Cadieu E, Center A, Chandra I, Cherry JM, Cawley S, Dahlke C, Davenport LB, Davies P, de Pablos B, Delcher A, Deng Z, Mays AD, Dew I, Dietz SM, Dodson K, Doup LE, Downes M, Dugan-Rocha S, Dunkov BC, Dunn P, Durbin KJ, Evangelista CC, Ferraz C, Ferriera S, Fleischmann W, Fosler C, Gabrielian AE, Garg NS, Gelbart WM, Glasser K, Glodek A, Gong F, Gorrell JH, Gu Z, Guan P, Harris M, Harris NL, Harvey D, Heiman TJ, Hernandez JR, Houck J, Hostin D, Houston KA, Howland TJ, Wei MH, Ibegwam C, Jalali M, Kalush F, Karpen GH, Ke Z, Kennison JA, Ketchum KA, Kimmel BE, Kodira CD, Kraft C, Kravitz S, Kulp D, Lai Z, Lasko P, Lei Y, Levitsky AA, Li J, Li Z, Liang Y, Lin X, Liu X, Mattei B, McIntosh TC, McLeod MP, McPherson D, Merkulov G, Milshina NV, Mobarry C, Morris J, Moshrefi A, Mount SM, Moy M, Murphy B, Murphy L, Muzny DM, Nelson DL, Nelson DR, Nelson KA, Nixon K, Nusskern DR, Pacleb JM, Palazzolo M, Pittman GS, Pan S, Pollard J, Puri V, Reese MG, Reinert K, Remington K, Saunders RD, Scheeler F, Shen H, Shue BC, Siden-Kiamos I, Simpson M, Skupski MP, Smith T, Spier E, Spradling AC, Stapleton M, Strong R, Sun E, Svirskas R, Tector C, Turner R, Venter E, Wang AH, Wang X, Wang ZY, Wassarman DA, Weinstock GM, Weissenbach J, Williams SM, WoodageT, Worley KC, Wu D, Yang S, Yao QA, Ye J, Yeh RF, Zaveri JS, Zhan M, Zhang G, Zhao Q, Zheng L, Zheng XH, Zhong FN, Zhong W, Zhou X, Zhu S, Zhu X, Smith HO, Gibbs RA, Myers EW, Rubin GM, Venter JC (- 185)
Ref: Science, 287:2185, 2000 : PubMed
Abstract


ESTHER: Adams_2000_Science_287_2185
PubMedSearch: Adams 2000 Science 287 2185
PubMedID: 10731132
Gene_locus related to this paper: drome-1vite, drome-2vite, drome-3vite, drome-a1z6g9, drome-abhd2, drome-ACHE, drome-b6idz4, drome-BEM46, drome-CG5707, drome-CG5704, drome-CG1309, drome-CG1882, drome-CG1986, drome-CG2059, drome-CG2493, drome-CG2528, drome-CG2772, drome-CG3160, drome-CG3344, drome-CG3523, drome-CG3524, drome-CG3734, drome-CG3739, drome-CG3744, drome-CG3841, drome-CG4267, drome-CG4382, drome-CG4390, drome-CG4572, drome-CG4582, drome-CG4851, drome-CG4979, drome-CG5068, drome-CG5162, drome-CG5355, drome-CG5377, drome-CG5397, drome-CG5412, drome-CG5665, drome-CG5932, drome-CG5966, drome-CG6018, drome-CG6113, drome-CG6271, drome-CG6283, drome-CG6295, drome-CG6296, drome-CG6414, drome-CG6431, drome-CG6472, drome-CG6567, drome-CG6675, drome-CG6753, drome-CG6847, drome-CG7329, drome-CG7367, drome-CG7529, drome-CG7632, drome-CG8058, drome-CG8093, drome-CG8233, drome-CG8424, drome-CG8425, drome-CG9059, drome-CG9186, drome-CG9287, drome-CG9289, drome-CG9542, drome-CG9858, drome-CG9953, drome-CG9966, drome-CG10116, drome-CG10163, drome-CG10175, drome-CG10339, drome-CG10357, drome-CG10982, drome-CG11034, drome-CG11055, drome-CG11309, drome-CG11319, drome-CG11406, drome-CG11598, drome-CG11600, drome-CG11608, drome-CG11626, drome-CG11935, drome-CG12108, drome-CG12869, drome-CG13282, drome-CG13562, drome-CG13772, drome-CG14034, drome-nlg3, drome-CG14717, drome-CG15101, drome-CG15102, drome-CG15106, drome-CG15111, drome-CG15820, drome-CG15821, drome-CG15879, drome-CG17097, drome-CG17099, drome-CG17101, drome-CG17191, drome-CG17192, drome-CG17292, drome-CG18258, drome-CG18284, drome-CG18301, drome-CG18302, drome-CG18493, drome-CG18530, drome-CG18641, drome-CG18815, drome-CG31089, drome-CG31091, drome-CG32333, drome-CG32483, drome-CG33174, drome-dnlg1, drome-este4, drome-este6, drome-GH02384, drome-GH02439, drome-glita, drome-KRAKEN, drome-lip1, drome-LIP2, drome-lip3, drome-MESK2, drome-nrtac, drome-OME, drome-q7k274, drome-Q9VJN0, drome-Q8IP31, drome-q9vux3

Abstract

The fly Drosophila melanogaster is one of the most intensively studied organisms in biology and serves as a model system for the investigation of many developmental and cellular processes common to higher eukaryotes, including humans. We have determined the nucleotide sequence of nearly all of the approximately 120-megabase euchromatic portion of the Drosophila genome using a whole-genome shotgun sequencing strategy supported by extensive clone-based sequence and a high-quality bacterial artificial chromosome physical map. Efforts are under way to close the remaining gaps; however, the sequence is of sufficient accuracy and contiguity to be declared substantially complete and to support an initial analysis of genome structure and preliminary gene annotation and interpretation. The genome encodes approximately 13,600 genes, somewhat fewer than the smaller Caenorhabditis elegans genome, but with comparable functional diversity.