Gene expression changes elicited by a parasitic B chromosome in the grasshopper Eyprepocnemis plorans are consistent with its phenotypic effects

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Details zur Publikation

Autorinnen und Autoren: Navarro-Dominguez B, Martin-Pecina M, Ruiz-Ruano FJ, Cabrero J, Corral JM, Dolores Lopez-Leon M, Sharbel TF, Camacho JPM
Zeitschrift: Chromosoma
Jahr der Veröffentlichung: 2019
Band: 128
Heftnummer: 1
Seitenbereich: 53-67
ISSN: 0009-5915


Abstract

Parasitism evokes adaptive physiological changes in the host, many of which take place through gene expression changes. This response can be more or less local, depending on the organ or tissue affected by the parasite, or else systemic when the parasite affects the entire host body. The most extreme of the latter cases is intragenomic parasitism, where the parasite is present in all host nuclei as any other genomic element. Here, we show the molecular crosstalk between a parasitic chromosome (also named B chromosome) and the host genome, manifested through gene expression changes. The transcriptome analysis of 0B and 1B females of the grasshopper Eyprepocnemis plorans, validated by a microarray experiment performed on four B-lacking and five B-carrying females, revealed changes in gene expression for 188 unigenes being consistent in both experiments. Once discarded B-derived transcripts, there were 46 differentially expressed genes (30 up- and 16 downregulated) related with the adaptation of the host genome to the presence of the parasitic chromosome. Interestingly, the functions of these genes could explain some of the most important effects of B chromosomes, such as nucleotypic effects derived from the additional DNA they represent, chemical defense and detoxification, protein modification and response to stress, ovary function, and regulation of gene expression. Collectively, these changes uncover an intimate host-parasite interaction between A and B chromosomes during crucial steps of gene expression and protein function.


Einrichtungen weiterer Autorinnen und Autoren

Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) / Leibniz Institute of Plant Genetics and Crop Plant Research
Universidad de Granada


Zitierweisen

APA:
Navarro-Dominguez, B., Martin-Pecina, M., Ruiz-Ruano, F.J., Cabrero, J., Corral, J.M., Dolores Lopez-Leon, M.,... Camacho, J.P.M. (2019). Gene expression changes elicited by a parasitic B chromosome in the grasshopper Eyprepocnemis plorans are consistent with its phenotypic effects. Chromosoma, 128(1), 53-67. https://dx.doi.org/10.1007/s00412-018-00689-y

MLA:
Navarro-Dominguez, Beatriz, et al. "Gene expression changes elicited by a parasitic B chromosome in the grasshopper Eyprepocnemis plorans are consistent with its phenotypic effects." Chromosoma 128.1 (2019): 53-67.

BibTeX: 

Zuletzt aktualisiert 2019-06-03 um 12:08