Molecular evolutionary trends and feeding ecology diversification in the Hemiptera, anchored by the milkweed bug genome.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_1F5349B51FC7
Type
Article: article from journal or magazin.
Publication sub-type
Minutes: analyse of a published work.
Collection
Publications
Title
Molecular evolutionary trends and feeding ecology diversification in the Hemiptera, anchored by the milkweed bug genome.
Journal
Genome Biology
Author(s)
Panfilio K.A., Vargas Jentzsch I.M., Benoit J.B., Erezyilmaz D., Suzuki Y., Colella S., Robertson H.M., Poelchau M.F., Waterhouse R.M., Ioannidis P., Weirauch M.T., Hughes DST, Murali S.C., Werren J.H., Jacobs CGC, Duncan E.J., Armisén D., Vreede BMI, Baa-Puyoulet P., Berger C.S., Chang C.C., Chao H., Chen M.M., Chen Y.T., Childers C.P., Chipman A.D., Cridge A.G., Crumière AJJ, Dearden P.K., Didion E.M., Dinh H., Doddapaneni H.V., Dolan A., Dugan S., Extavour C.G., Febvay G., Friedrich M., Ginzburg N., Han Y., Heger P., Holmes C.J., Horn T., Hsiao Y.M., Jennings E.C., Johnston J.S., Jones T.E., Jones J.W., Khila A., Koelzer S., Kovacova V., Leask M., Lee S.L., Lee C.Y., Lovegrove M.R., Lu H.L., Lu Y., Moore P.J., Munoz-Torres M.C., Muzny D.M., Palli S.R., Parisot N., Pick L., Porter M.L., Qu J., Refki P.N., Richter R., Rivera-Pomar R., Rosendale A.J., Roth S., Sachs L., Santos M.E., Seibert J., Sghaier E., Shukla J.N., Stancliffe R.J., Tidswell O., Traverso L., van der Zee M., Viala S., Worley K.C., Zdobnov E.M., Gibbs R.A., Richards S.
ISSN
1474-760X (Electronic)
ISSN-L
1474-7596
Publication state
Published
Issued date
2019
Peer-reviewed
Oui
Volume
20
Number
1
Pages
64
Language
english
Abstract
The Hemiptera (aphids, cicadas, and true bugs) are a key insect order, with high diversity for feeding ecology and excellent experimental tractability for molecular genetics. Building upon recent sequencing of hemipteran pests such as phloem-feeding aphids and blood-feeding bed bugs, we present the genome sequence and comparative analyses centered on the milkweed bug Oncopeltus fasciatus, a seed feeder of the family Lygaeidae.
The 926-Mb Oncopeltus genome is well represented by the current assembly and official gene set. We use our genomic and RNA-seq data not only to characterize the protein-coding gene repertoire and perform isoform-specific RNAi, but also to elucidate patterns of molecular evolution and physiology. We find ongoing, lineage-specific expansion and diversification of repressive C2H2 zinc finger proteins. The discovery of intron gain and turnover specific to the Hemiptera also prompted the evaluation of lineage and genome size as predictors of gene structure evolution. Furthermore, we identify enzymatic gains and losses that correlate with feeding biology, particularly for reductions associated with derived, fluid nutrition feeding.
With the milkweed bug, we now have a critical mass of sequenced species for a hemimetabolous insect order and close outgroup to the Holometabola, substantially improving the diversity of insect genomics. We thereby define commonalities among the Hemiptera and delve into how hemipteran genomes reflect distinct feeding ecologies. Given Oncopeltus's strength as an experimental model, these new sequence resources bolster the foundation for molecular research and highlight technical considerations for the analysis of medium-sized invertebrate genomes.
Keywords
Evolution of development, Gene family evolution, Gene structure, Lateral gene transfer, Phytophagy, RNAi, Transcription factors
Pubmed
Web of science
Open Access
Yes
Create date
03/04/2019 13:57
Last modification date
08/05/2019 15:30
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