RT Journal Article
SR Electronic
T1 The genome of the water strider <em>Gerris buenoi</em> reveals expansions of gene repertoires associated with adaptations to life on the water
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 242230
DO 10.1101/242230
A1 David Armisén
A1 Rajendhran Rajakumar
A1 Markus Friedrich
A1 Joshua B Benoit
A1 Hugh M. Robertson
A1 Kristen A. Panfilio
A1 Seung-Joon Ahn
A1 Monica F. Poelchau
A1 Hsu Chao
A1 Huyen Dinh
A1 HarshaVardhan Doddapaneni
A1 Shannon Dugan
A1 Richard A. Gibbs
A1 Daniel S.T. Hughes
A1 Yi Han
A1 Sandra L. Lee
A1 Shwetha C. Murali
A1 Donna M. Muzny
A1 Jiaxin Qu
A1 Kim C. Worley
A1 Monica Munoz-Torres
A1 Ehab Abouheif
A1 François Bonneton
A1 Travis Chen
A1 Li-Mei Chiang
A1 Christopher P. Childers
A1 Andrew Graham Cridge
A1 Antonin Jean Johan Crumière
A1 Amelie Decaras
A1 Elise M. Didion
A1 Elizabeth Duncan
A1 Elena N. Elpidina
A1 Marie-Julie Favé
A1 Cédric Finet
A1 Chris G.C. Jacobs
A1 Alys Jarvela
A1 Emily J. Jennings
A1 Jeffery W. Jones
A1 Maryna P. Lesoway
A1 Mackenzie Lovegrove
A1 Alexander Martynov
A1 Brenda Oppert
A1 Angelica Lillico-Ouachour
A1 Arjuna Rajakumar
A1 Peter Nagui Refki
A1 Andrew J. Rosendale
A1 Maria Emilia Santos
A1 William Toubiana
A1 Maurijn van der Zee
A1 Iris M. Vargas Jentzsch
A1 Aidamalia Vargas Lowman
A1 Severine Viala
A1 Stephen Richards
A1 Abderrahman Khila
YR 2018
UL http://biorxiv.org/content/early/2018/02/11/242230.abstract
AB The semi-aquatic bugs conquered water surfaces worldwide and occupy ponds, streams, lakes, mangroves, and even open oceans. As such, they inspired a range of scientific studies from ecology and evolution to developmental genetics and hydrodynamics of fluid locomotion. However, the lack of a representative water strider genome hinders thorough investigations of the mechanisms underlying the processes of adaptation and diversification in this group. Here we report the sequencing and manual annotation of the Gerris buenoi (G. buenoi) genome, the first water strider genome to be sequenced so far. G. buenoi genome is about 1 000Mb and the sequencing effort recovered 20 949 predicted protein-coding genes. Manual annotation uncovered a number of local (tandem and proximal) gene duplications and expansions of gene families known for their importance in a variety of processes associated with morphological and physiological adaptations to water surface lifestyle. These expansions affect key processes such as growth, vision, desiccation resistance, detoxification, olfaction and epigenetic components. Strikingly, the G. buenoi genome contains three Insulin Receptors, a unique case among metazoans, suggesting key changes in the rewiring and function of the insulin pathway. Other genomic changes include wavelength sensitivity shifts in opsin proteins likely in association with the requirements of vision in water habitats. Our findings suggest that local gene duplications might have had an important role during the evolution of water striders. These findings along with the G. buenoi genome open exciting research opportunities to understand adaptation and genome evolution of this unique hemimetabolous insect.