Elucidation of the mutation rate as driver of insect endosymbiont genome evolution

2023 Fiscal Year Annual Research Report

• Project/Area Number: 21H02541
• Research Institution: Okinawa Institute of Science and Technology Graduate University
• Principal Investigator: ブギーニョン トマ 沖縄科学技術大学院大学, 進化ゲノミクスユニット, 准教授 (40817558)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: evolution / endosymbiont / insect / cockroach / blattabacterium

Outline of Annual Research Achievements

We sequenced 448 Blattabacterium genomes, including over 300 assembled in a single contig. Other genomes were fragmented and assembled in multiple contigs.
Two papers in Molecular Biology and Evolution (IF: 10.7) and Molecular Phylogenetics and Evolution (IF: 4.3): Kinjo Y.*, (4 authors) & Bourguignon T. (2021) Enhanced mutation rate, relaxed selection, and the ‘domino effect’ are associated with gene loss in Blattabacterium, a cockroach endosymbiont. Molecular Biology and Evolution, 38, 3820-3831. Che Y., (5 authors), Bourguignon T., Lo N. & Wang Z. (2022). Vicariance and dispersal events inferred from mitochondrial genomes and nuclear genes (18S, 28S) shaped global Cryptocercus distributions. Molecular Phylogenetic and Evolution 166, 107318.

Research Progress Status

令和5年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和5年度が最終年度であるため、記入しない。