Symbiont switching and alternative resource acquisition strategies drive mutualism breakdown

Werner Gijsbert D. A.; Cornelissen Johannes H. C.; Cornwell William K.Soudzilovskaia Nadejda A.Kattge JensWest Stuart A.Kiers E. Toby

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Symbiont switching and alternative resource acquisition strategies drive mutualism breakdown

机译：Symbiont switching and alternative resource acquisition strategies drive mutualism breakdown

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Cooperative interactions among species, termed mutualisms, have played a crucial role in the evolution of life on Earth. However, despite key potential benefits to partners, there are many cases in which two species cease to cooperate and mutualisms break down. What factors drive the evolutionary breakdown of mutualism? We examined the pathways toward breakdowns of the mutualism between plants and arbuscular mycorrhizal fungi. By using a comparative approach, we identify similar to 25 independent cases of complete mutualism breakdown across global seed plants. We found that breakdown of cooperation was only stable when host plants (i) partner with other root symbionts or (ii) evolve alternative resource acquisition strategies. Our results suggest that key mutualistic services are only permanently lost if hosts evolve alternative symbioses or adaptations.

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《Proceedings of the National Academy of Sciences of the United States of America.》 |2018年第20期|5229-5234|共6页
作者
Werner Gijsbert D. A.; Cornelissen Johannes H. C.; Cornwell William K.Soudzilovskaia Nadejda A.Kattge JensWest Stuart A.Kiers E. Toby;
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作者单位

Univ Oxford, Dept Zool, Oxford OX1 3PS, England;

Vrije Univ Amsterdam, Dept Ecol Sci, NL-1081 HV Amsterdam, Netherlands;

Univ New South Wales, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, AustraliaLeiden Univ, Inst Environm Sci, Conservat Biol Dept, NL-2300 RA Leiden, NetherlandsMax Planck Inst Biogeochem, D-07745 Jena, Germany;

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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类自然科学总论;
关键词
cooperation; mutualism; symbiosis; macroevolution; mycorrhizae;

Symbiont switching and alternative resource acquisition strategies drive mutualism breakdown

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