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Abstract Detail



Botany 2015 Colloquium: Integrated perspectives on the ecology, genetics and coevolution of intimate mutualisms

Yoder, Jeremy [1], Tiffin, Peter [1].

Understanding the dynamics of mutualistic symbiosis with population genomics.

Interactions such as those bettween plants and their pollinators, or between hosts and beneficial microbial symbionts, are vulnerable to collapse if one species accepts resources or services from its partner but fails to reciprocate. The stability of mutualisms in the face of natural selection favoring non-cooperation is a longstanding evolutionary conundrum, with many proposed solutions. The different mechanisms proposed to prevent exploitation of mutualism by non-cooperative partners imply differing forms of natural selection acting on mutualist traits and the genes that underly them. I take advantage of these contrasting predictions, examining patterns of sequence diversity and differentation in a panel of genes identified as important for symbiosis function and host-symbiont compatibilty in the model legume Medicago truncatula.


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1 - University of Minnesota, Plant Biology, 1445 Gortner Avenue, Suite 250, Saint Paul, MN, 55108, USA

Keywords:
mutualism
Medicago truncatula
Sinorhizobium
symbiosis
Nitrogen fixation.

Presentation Type: Colloquium Presentations
Session: C4
Location: Hall C/The Shaw Conference Centre
Date: Tuesday, July 28th, 2015
Time: 4:45 PM
Number: C4013
Abstract ID:445
Candidate for Awards:None


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