期刊
SCIENCE
卷 346, 期 6208, 页码 469-473出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1259923
关键词
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资金
- JSPS through the Funding Program for Next Generation World-Leading Researchers
- [23113005]
- Grants-in-Aid for Scientific Research [14J01393] Funding Source: KAKEN
Some ferns possess the ability to control their sex ratio to maintain genetic variation in their colony with the aid of antheridiogen pheromones, antheridium (male organ)-inducing compounds that are related to gibberellin. We determined that ferns have evolved an antheridiogen-mediated communication system to produce males by modifying the gibberellin biosynthetic pathway, which is split between two individuals of different developmental stages in the colony. Antheridiogen acts as a bridge between them because it is more readily taken up by prothalli than bioactive gibberellin. The pathway initiates in early-maturing prothalli (gametophytes) within a colony, which produce antheridiogens and secrete them into the environment. After the secreted antheridiogen is absorbed by neighboring late-maturing prothalli, it is modified in to bioactive gibberellin to trigger male organ formation.
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