Open Close
Reference
Citation
Andrews, J., Bouffard, G.G., Cheadle, C., Lu, J., Becker, K.G., Oliver, B. (2000). Gene discovery using computational and microarray analysis of transcription in the Drosophila melanogaster testis.  Genome Res. 10(12): 2030--2043.
FlyBase ID
FBrf0132348
Publication Type
Research paper
Abstract

Identification and annotation of all the genes in the sequenced Drosophila genome is a work in progress. Wild-type testis function requires many genes and is thus of potentially high value for the identification of transcription units. We therefore undertook a survey of the repertoire of genes expressed in the Drosophila testis by computational and microarray analysis. We generated 3141 high-quality testis expressed sequence tags (ESTs). Testis ESTs computationally collapsed into 1560 cDNA set used for further analysis. Of those, 11% correspond to named genes, and 33% provide biological evidence for a predicted gene. A surprising 47% fail to align with existing ESTs and 16% with predicted genes in the current genome release. EST frequency and microarray expression profiles indicate that the testis mRNA population is highly complex and shows an extended range of transcript abundance. Furthermore, >80% of the genes expressed in the testis showed onefold overexpression relative to ovaries, or gonadectomized flies. Additionally, >3% showed more than threefold overexpression at p <0.05. Surprisingly, 22% of the genes most highly overexpressed in testis match Drosophila genomic sequence, but not predicted genes. These data strongly support the idea that sequencing additional cDNA libraries from defined tissues, such as testis, will be important tools for refined annotation of the Drosophila genome. Additionally, these data suggest that the number of genes in Drosophila will significantly exceed the conservative estimate of 13,601.

PubMed ID
PubMed Central ID
PMC313064 (PMC) (EuropePMC)
Related Publication(s)
Personal communication to FlyBase

File from B. Oliver containing information on ESTs expressed in the Drosophila testis, described in Andrews et al., 2000, Genome Res. 10(12): 2030-2043 (FBrf0132348).
Oliver, 2001.8.16, Genome Res.: [FBrf0137492]

Associated Information
Comments
Associated Files
Other Information
Secondary IDs
    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Genome Res.
    Title
    Genome Research
    Publication Year
    1995-
    ISBN/ISSN
    1088-9051
    Data From Reference