2015 Fiscal Year Final Research Report
Identification of the genetic regions responsible for apogamous reproduction in ferns
| Project/Area Number |
25291089
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
WATANO Yasuyuki 千葉大学, 大学院理学研究科, 教授 (70192820)
KAKUGAWA Yoko 首都大学東京, 大学院理工学研究科, 准教授 (70575141)
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| Research Collaborator |
YAMAMOTO Kaoru
HORI Kiyotaka
MORI Erina
MATSUMOTO Megumi
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 遺伝子 / ゲノム / 植物 / 進化 / シダ |
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| Outline of Final Research Achievements |
We have revealed that apogamous fern species, which usually asexually reproduce, can easily hybridize with closely related sexual species and make hybrids. We collected spores from the tetraploid hybrids between triploid apogamous Cyrtomium falcatum and its diploid sexual forms, and cultivated gametophytes generated from the spores. Apogamous gametophytes, which could form next-generation sporophytes without fertilization, and sexual one, which could not, were observed in 1:1 ratio. These results indicate that apogamous reproduction in ferns is controlled by a single DNA region.
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| Free Research Field |
植物分類学・進化学
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