globalchange  > 气候变化与战略
DOI: 10.1111/ele.13570
论文题名:
Meta-population structure and the evolutionary transition to multicellularity
作者: Rose C.J.; Hammerschmidt K.; Pichugin Y.; Rainey P.B.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期:9
起始页码: 1380
结束页码: 1390
语种: 英语
中文关键词: Dispersal ; fitness decoupling ; germ line ; group selection ; soma
英文关键词: Bacteria (microorganisms) ; animal ; evolution ; life cycle stage ; phenotype ; reproduction ; Animals ; Biological Evolution ; Life Cycle Stages ; Phenotype ; Reproduction
英文摘要: The evolutionary transition to multicellularity has occurred on numerous occasions, but transitions to complex life forms are rare. Here, using experimental bacterial populations as proxies for nascent multicellular organisms, we manipulate ecological factors shaping the evolution of groups. Groups were propagated under regimes requiring reproduction via a life cycle replete with developmental and dispersal (propagule) phases, but in one treatment lineages never mixed, whereas in a second treatment, cells from different lineages experienced intense competition during the dispersal phase. The latter treatment favoured traits promoting cell growth at the expense of traits underlying group fitness – a finding that is supported by results from a mathematical model. Our results show that the transition to multicellularity benefits from ecological conditions that maintain discreteness not just of the group (soma) phase, but also of the dispersal (germline) phase. © 2020 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166704
Appears in Collections:气候变化与战略

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作者单位: New Zealand Institute for Advanced Study, Massey University, Auckland, New Zealand; Centre d’Ecologie Fonctionnelle et Evolutive, CNRS, Université de Montpellier, Université Paul Valéry Montpellier - IRD - EPHE, 1919 route de Mende, 34293, Montpellier Cedex 5, France; Institute of General Microbiology, Kiel University, Kiel, Germany; Department of Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Plön, Germany

Recommended Citation:
Rose C.J.,Hammerschmidt K.,Pichugin Y.,et al. Meta-population structure and the evolutionary transition to multicellularity[J]. Ecology Letters,2020-01-01,23(9)
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