Cell - Cell signalling in sexual chemotaxis: A basis for gametic differentiation, mating types and sexes

Zena Hadjivasiliou, Yoh Iwasa, Andrew Pomiankowski

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

While sex requires two parents, there is no obvious need for them to be differentiated into distinct mating types or sexes. Yet this is the predominate state of nature. Here, we argue that mating types could play a decisive role because they prevent the apparent inevitability of self-stimulation during sexual signalling. We rigorously assess this hypothesis by developing a model for signaller-detector dynamics based on chemical diffusion, chemotaxis and cell movement. Our model examines the conditions under which chemotaxis improves partner finding. Varying parameter values within ranges typical of protists and their environments, we show that simultaneous secretion and detection of a single chemoattractant can cause a multifold movement impediment and severely hinder mate finding. Mutually exclusive roles result in faster pair formation, even when cells conferring the same roles cannot pair up. This arrangement also allows the separate mating types to optimize their signalling or detecting roles, which is effectively impossible for cells that are both secretors and detectors. Our findings suggest that asymmetric roles in sexual chemotaxis (and possibly other forms of sexual signalling) are crucial, even without morphological differences, and may underlie the evolution of gametic differentiation among both mating types and sexes.

元の言語英語
ジャーナルJournal of the Royal Society Interface
12
発行部数109
DOI
出版物ステータス出版済み - 8 6 2015

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Cell signaling
Sex Differentiation
Chemotaxis
Detectors
Self Stimulation
Chemotactic Factors
Cell Movement
Cells

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biophysics
  • Bioengineering
  • Biomaterials
  • Biochemistry
  • Biomedical Engineering

これを引用

Cell - Cell signalling in sexual chemotaxis : A basis for gametic differentiation, mating types and sexes. / Hadjivasiliou, Zena; Iwasa, Yoh; Pomiankowski, Andrew.

:: Journal of the Royal Society Interface, 巻 12, 番号 109, 06.08.2015.

研究成果: ジャーナルへの寄稿記事

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