Thoughts on the function of color patterns
| Project/Area Number |
17K19427
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Ecology and Evolution (including anthropology), and related fields
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2017-06-30 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ショウジョウバエ / 模様 / 着色 / 機能 / 進化 / 昆虫 / 生活史 |
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| Outline of Final Research Achievements |
Drosophila guttifera has black polka dots of melanin pigmentation on the wings and abdomen. We tried to clarify the function (adaptive significance) of this pattern. First, we attempted to establish mutant lines in which genes involved in the pigmentation pattern of this species were knocked out by genome editing. We established several lines for the two genes. The hypotheses concerning the function of the wing pattern of this species were reviewed. The function in mate choice was verified by experiments. As a result, the presence or absence of the wing of the mating partner affected the mate choice. The mate choice by females affected by the specific origin of the wings of males, but not by the other factors, such as perfectness of the pattern or intensity of the pattern.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の目的は、ショウジョウバエ（ハエ目、ショウジョウバエ科の昆虫）の体表（腹部、翅）にあるメラニン色素による着色、模様に関して、その存在意義（適応的意義）を明らかにすることにあった。特にその方法として、ゲノム編集によって模様を改変した個体を用いることが新しい切り口であった。行動実験の結果より、配偶者選択における模様の機能は検出されなかった。本研究をきっかけのひとつとして、より多くの生物の模様の意味が明らかになると期待している。
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Report
(4 results)
Research Products
(18 results)
