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PMID: 14762059 Published · ppublish English Comparative Study Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S.

Comparative genomics of gene expression in the parasitic and free-living nematodes Strongyloides stercoralis and Caenorhabditis elegans.

Genome research ·Vol. 14 ·No. 2 ·2004-02-00 ·Pages 209-20

Mitreva M, McCarter JP, Martin J, Dante M, Wylie T, Chiapelli B, Pape D, Clifton SW, Nutman TB, Waterston RH

Abstract

Although developmental timing of gene expression is used to infer potential gene function, studies have yet to correlate this information between species. We analyzed 10,921 ESTs in 3311 clusters from first- and infective third-stage larva (L1, L3i) of the parasitic nematode Strongyloides stercoralis and compared the results to Caenorhabditis elegans, a species that has an L3i-like dauer stage. In the comparison of S. stercoralis clusters with stage-specific expression to C. elegans homologs expressed in either dauer or nondauer stages, matches between S. stercoralis L1 and C. elegans nondauer-expressed genes dominated, suggesting conservation in the repertoire of genes expressed during growth in nutrient-rich conditions. For example, S. stercoralis collagen transcripts were abundant in L1 but not L3i, a pattern consistent with C. elegans collagens. Although a greater proportion of S. stercoralis L3i than L1 genes have homologs among the C. elegans dauer-specific transcripts, we did not uncover evidence of a robust conserved L3i/dauer 'expression signature.' Strikingly, in comparisons of S. stercoralis clusters to C. elegans homologs with RNAi knockouts, those with significant L1-specific expression were more than twice as likely as L3i-specific clusters to match genes with phenotypes. We also provide functional classifications of S. stercoralis clusters.

MeSH Terms
Animals Caenorhabditis elegans/genetics,growth & development Cloning, Molecular Cluster Analysis Culture Media/chemistry,metabolism DNA, Helminth/genetics Gene Expression Profiling/methods,statistics & numerical data Genes, Helminth/genetics Genomics/methods Molecular Sequence Data Oligonucleotide Array Sequence Analysis/methods,statistics & numerical data Phenotype RNA Interference/physiology RNA, Helminth/genetics Sequence Analysis, DNA/methods,statistics & numerical data Sequence Homology, Nucleic Acid Species Specificity Strongyloides stercoralis/genetics,growth & development Transcription, Genetic/genetics
Chemicals
Culture Media DNA, Helminth RNA, Helminth
Authors & Affiliations
10 authors, click to expand affiliations / ORCID
Mitreva Makedonka
Department of Genetics, Washington University School of Medicine, St Louis, Missouri 63108, USA. mmitreva@watson.wstl.edu
McCarter James P
Martin John
Dante Mike
Wylie Todd
Chiapelli Brandi
Pape Deana
Clifton Sandra W
Nutman Thomas B
Waterston Robert H
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Article Info
Journal
Genome research
Abbr.
Genome Res
ISSN
1088-9051
Published
2004-02-00
Pages
209-20
Language
English
Region
United States
NLM ID
9518021
PMCID
PMC327096
Subset
IM
Grants
NIAID NIH HHS · U01 AI046593 · United States
NIAID NIH HHS · AI46593 · United States
Databases
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AW496299, AW496300, AW496301, AW496302, AW496303, AW496304, AW496305, AW496306, AW496307, AW496308, AW496309, AW496310, AW496311, AW496312, AW496313, AW496314, AW496315, AW496316, AW496317, AW496318, AW496319, AW496320, AW496321, AW496322, AW496323, AW496324, AW496325, AW496326, AW496327, AW496328, AW496329, AW496330, AW496331, AW496332, AW496333, AW496334, AW496335, AW496336, AW496337, AW496338, AW496339, AW496340, AW496341, AW496342, AW496343, AW496344, AW496345, AW496346, AW496347, AW496348, AW496349, AW496350, AW496351, AW496352, AW496353, AW496354, AW496355, AW496356, AW496357, AW496358, AW496359, AW496360, AW496361, AW496362, AW496363, AW496364, AW496365, AW496366, AW496367, AW496368, AW496369, AW496370, AW496371, AW496372, AW496373, AW496374, AW496375, AW496376, AW496377, AW496378, AW496379, AW496380, AW496381, AW496382, AW496383, AW496384, AW496385, AW496386, AW496387, AW496388, AW496389, AW496390, AW496391, AW496392, AW496393, AW496394, AW496395, AW496396, AW496397, AW496398, AW496399, AW496400, AW496401, AW496402, AW496403, AW496404, AW496405, AW496406, AW496407, AW496408, AW496409, AW496410, AW496411, AW496412, AW496413, AW496414, AW496415, AW496416, AW496417, AW496418, AW496419, AW496420, AW496421, AW496422, AW496423, AW496424, AW496425, AW496426, AW496427, AW496428, AW496429, AW496430, AW496431, AW496432, AW496433, AW496434, AW496435, AW496436, AW496437, AW496438, AW496439, AW496440, AW496441, AW496442, AW496443, AW496444, AW496445, AW496446, AW496447, AW496448, AW496449, AW496450, AW496451, AW496452, AW496453, AW496454, AW496455, AW496456, AW496457, AW496458, AW496459, AW496460, AW496461, AW496462, AW496463, AW496464, AW496465, AW496466, AW496467, AW496468, AW496469, AW496470, AW496471, AW496472, AW496473, AW496474, AW496475, AW496476, AW496477, AW496478, AW496479, AW496480, AW496481, AW496482, AW496483, AW496484, AW496485, AW496486, AW496487, AW496488, AW496489, AW496490, AW496491, AW496492, AW496493, AW496494, AW496495, AW496496, AW496497, AW496498
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