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- Title
Genomic Analysis of an Ascomycete Fungus from the Rice Planthopper Reveals How It Adapts to an Endosymbiotic Lifestyle.
- Authors
Fan, Hai-Wei; Noda, Hiroaki; Xie, Hong-Qing; Suetsugu, Yoshitaka; Zhu, Qian-Hua; Zhang, Chuan-Xi
- Abstract
A number of sap-sucking insects harbor endosymbionts, which are thought to play an important role in the development of their hosts. One of the most important rice pests, the brown planthopper (BPH), Nilaparvata lugens (Sta° l), harbors an obligatory yeast-like symbiont (YLS) that cannotbe cultured invitro.Genomic informationonthisYLS wouldbeuseful tobetterunderstand its evolution. In this study, we performed genome sequencing of the YLS using both 454 and Illumina approaches, generating a draft genome that shows a slightly smaller genome size and relatively higher GC content than most ascomycete fungi. A phylogenomic analysis of the YLS supported its close relationship with insect pathogens.We analyzedYLS-specific genes and the categories of genes that are likely to have changed in the YLS during its evolution. The loss ofmating type locus demonstrated in the YLS sheds light on the evolution of eukaryotic symbionts. This information about the YLS genome provides a helpful guide for further understanding endosymbiotic associations in hemiptera and the symbiotic replacement of ancient bacteria with a multifunctional YLS seems to have been a successful change.
- Publication
Genome Biology & Evolution, 2015, Vol 7, Issue 9, p2623
- ISSN
1759-6653
- Publication type
Article
- DOI
10.1093/gbe/evv169