| Literature DB >> 29794220 |
Maximilian Griesmann1,2, Yue Chang3,4, Xin Liu3,4, Yue Song3,4, Georg Haberer2, Matthew B Crook5, Benjamin Billault-Penneteau1, Dominique Lauressergues6, Jean Keller6, Leandro Imanishi7, Yuda Purwana Roswanjaya8, Wouter Kohlen8, Petar Pujic9, Kai Battenberg10, Nicole Alloisio9, Yuhu Liang3,4, Henk Hilhorst11, Marco G Salgado12, Valerie Hocher13, Hassen Gherbi13, Sergio Svistoonoff13, Jeff J Doyle14, Shixu He3,4, Yan Xu3,4, Shanyun Xu3,4, Jing Qu3,4, Qiang Gao3,15, Xiaodong Fang3,15, Yuan Fu3,4, Philippe Normand9, Alison M Berry10, Luis G Wall7, Jean-Michel Ané16,17, Katharina Pawlowski12, Xun Xu3,4, Huanming Yang3,18, Manuel Spannagl2, Klaus F X Mayer2,19, Gane Ka-Shu Wong3,20,21, Martin Parniske22, Pierre-Marc Delaux23, Shifeng Cheng24,4.
Abstract
The root nodule symbiosis of plants with nitrogen-fixing bacteria affects global nitrogen cycles and food production but is restricted to a subset of genera within a single clade of flowering plants. To explore the genetic basis for this scattered occurrence, we sequenced the genomes of 10 plant species covering the diversity of nodule morphotypes, bacterial symbionts, and infection strategies. In a genome-wide comparative analysis of a total of 37 plant species, we discovered signatures of multiple independent loss-of-function events in the indispensable symbiotic regulator NODULE INCEPTION in 10 of 13 genomes of nonnodulating species within this clade. The discovery that multiple independent losses shaped the present-day distribution of nitrogen-fixing root nodule symbiosis in plants reveals a phylogenetically wider distribution in evolutionary history and a so-far-underestimated selection pressure against this symbiosis.Entities:
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Year: 2018 PMID： 29794220 DOI： 10.1126/science.aat1743
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728