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Comparative genomics of the miniature wasp and pest control agent Trichogramma pretiosum.
Lindsey, Amelia R I; Kelkar, Yogeshwar D; Wu, Xin; Sun, Dan; Martinson, Ellen O; Yan, Zhichao; Rugman-Jones, Paul F; Hughes, Daniel S T; Murali, Shwetha C; Qu, Jiaxin; Dugan, Shannon; Lee, Sandra L; Chao, Hsu; Dinh, Huyen; Han, Yi; Doddapaneni, Harsha Vardhan; Worley, Kim C; Muzny, Donna M; Ye, Gongyin; Gibbs, Richard A; Richards, Stephen; Yi, Soojin V; Stouthamer, Richard; Werren, John H.
Afiliación
  • Lindsey ARI; Department of Entomology, University of California Riverside, Riverside, California, 92521, USA. alind005@ucr.edu.
  • Kelkar YD; Present Address: Department of Biology, Indiana University, Bloomington, Indiana, 47405, USA. alind005@ucr.edu.
  • Wu X; Department of Biology, University of Rochester, Rochester, New York, 14627, USA.
  • Sun D; School of Biological Sciences, Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA.
  • Martinson EO; School of Biological Sciences, Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA.
  • Yan Z; Department of Biology, University of Rochester, Rochester, New York, 14627, USA.
  • Rugman-Jones PF; Present Address: Department of Entomology, University of Georgia, Athens, Georgia, 30602, USA.
  • Hughes DST; Department of Biology, University of Rochester, Rochester, New York, 14627, USA.
  • Murali SC; State Key Laboratory of Rice Biology & Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Qu J; Department of Entomology, University of California Riverside, Riverside, California, 92521, USA.
  • Dugan S; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Lee SL; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Chao H; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Dinh H; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Han Y; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Doddapaneni HV; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Worley KC; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Muzny DM; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Ye G; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Gibbs RA; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Richards S; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Yi SV; State Key Laboratory of Rice Biology & Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Stouthamer R; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
  • Werren JH; Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.
BMC Biol ; 16(1): 54, 2018 05 18.
Article en En | MEDLINE | ID: mdl-29776407
ABSTRACT

BACKGROUND:

Trichogrammatids are minute parasitoid wasps that develop within other insect eggs. They are less than half a millimeter long, smaller than some protozoans. The Trichogrammatidae are one of the earliest branching families of Chalcidoidea a diverse superfamily of approximately half a million species of parasitoid wasps, proposed to have evolved from a miniaturized ancestor. Trichogramma are frequently used in agriculture, released as biological control agents against major moth and butterfly pests. Additionally, Trichogramma are well known for their symbiotic bacteria that induce asexual reproduction in infected females. Knowledge of the genome sequence of Trichogramma is a major step towards further understanding its biology and potential applications in pest control.

RESULTS:

We report the 195-Mb genome sequence of Trichogramma pretiosum and uncover signatures of miniaturization and adaptation in Trichogramma and related parasitoids. Comparative analyses reveal relatively rapid evolution of proteins involved in ribosome biogenesis and function, transcriptional regulation, and ploidy regulation. Chalcids also show loss or especially rapid evolution of 285 gene clusters conserved in other Hymenoptera, including many that are involved in signal transduction and embryonic development. Comparisons between sexual and asexual lineages of Trichogramma pretiosum reveal that there is no strong evidence for genome degradation (e.g., gene loss) in the asexual lineage, although it does contain a lower repeat content than the sexual lineage. Trichogramma shows particularly rapid genome evolution compared to other hymenopterans. We speculate these changes reflect adaptations to miniaturization, and to life as a specialized egg parasitoid.

CONCLUSIONS:

The genomes of Trichogramma and related parasitoids are a valuable resource for future studies of these diverse and economically important insects, including explorations of parasitoid biology, symbiosis, asexuality, biological control, and the evolution of miniaturization. Understanding the molecular determinants of parasitism can also inform mass rearing of Trichogramma and other parasitoids for biological control.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Avispas / Control Biológico de Vectores / Evolución Molecular Límite: Animals Idioma: En Revista: BMC Biol Asunto de la revista: BIOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Avispas / Control Biológico de Vectores / Evolución Molecular Límite: Animals Idioma: En Revista: BMC Biol Asunto de la revista: BIOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos