Population genomics study of the cosmopolitan appendicularian Oikopleura dioica in northwest Pacific for uncovering population structure and genetic diversity

2023 年度 実施状況報告書

• 研究課題/領域番号: 23K14236
• 研究機関: 沖縄科学技術大学院大学
• 研究代表者: MIAO Jiashun 沖縄科学技術大学院大学, ゲノム・遺伝子制御システム科学ユニット, ポストドクトラルスカラー (70974228)
• 研究期間 (年度): 2023-04-01 – 2025-03-31
• キーワード: Oikopleura dioica / population genomics / Ryukyu Islands / population structure / genetic diversity / zooplankton

研究実績の概要

1. We did sampling for Oikolpleura dioica around Okinawa mainlads and Amami islands in July 2023. Besides O. dioica, we got other interesting marine zooplanktons. We have sequenced more than 107 O. dioica individuals sampled around Ryukyu islands in this project. We have finished the data analysis for these 107 indiviudals and found O. dioica around Ryukyu has very high genetic diversity and high proportion of rare variants. Genetic differentiation among these field sampling locations is very small.
2. I made a conference presentation titled Population Genomic Study Reveals Local Adaption Signal of Oikopleura dioica around Ryukyu islands in the International Symposium: Past, Present, and Future of the Marine Environment and Ecosystem, Tohoku, Japan.

現在までの達成度 (区分)

2: おおむね順調に進展している

理由

We succeeded in sampling O. dioica around Ryukyu islands and have already sequenced 107 individuals with Illumina platform. And we are doing analysis and paper writing. We are going to submit the original research paper within this year, 2024.

今後の研究の推進方策

In this year, we are going to extend our sampling for better understanding the genetic diversity of this marine zoomplankton. And we are going to finish the data analysis of the previous 107 individuals and publish the results of this part.

研究成果

• [学会発表] Population Genomic Study Reveals Local Adaption Signal of Oikopleura dioica around Ryukyu islands (2023)
  • 著者名/発表者名: Miao Jiashun
  • 学会等名: International Symposium: Past, Present, and Future of the Marine Environment and Ecosystem
  • 国際学会 / 招待講演