Kinship rivalry does not trigger specific allocation strategies in Lupinus angustifolius.

Annals of Botany
Rubén MillaJose M Iriondo

Abstract

Research on the ability of plants to recognize kin and modify plant development to ameliorate competition with coexisting relatives is an area of very active current exploration. Empirical evidence, however, is insufficient to provide a sound picture of this phenomenon. An experiment was designed to assess multi-trait phenotypic expression in response to competition with conspecifics of varied degrees of genealogical relatedness. Groups of siblings, cousins and strangers of Lupinus angustifolius were set in competition in a pots assay. Several whole-plant and organ-level traits, directly related to competition for above- and below-ground resources, were measured. In addition, group-level root proliferation was measured as a key response trait to relatedness to neighbours, as identified in previous work. No major significant phenotypic differences were found between individuals and groups that could be assigned to the gradient of relatedness used here. This occurred in univariate models, and also when multi-trait interactions were evaluated through multi-group comparisons of Structural Equation Models. Root proliferation was higher in phenotypically more heterogeneous groups, but phenotypic heterogeneity was independent of the r...Continue Reading

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Citations

Jan 31, 2013·Proceedings of the National Academy of Sciences of the United States of America·Suqin FangPhilip N Benfey
Mar 13, 2015·Plant Signaling & Behavior·Omer FalikAriel Novoplansky
Jun 23, 2012·Annals of Botany·J S Pat Heslop-Harrison
Jul 16, 2015·Journal of Evolutionary Biology·C PélabonW S Armbruster
Sep 30, 2014·The New Phytologist·María A Crepy, Jorge J Casal
Jul 27, 2021·Frontiers in Plant Science·Harihar Jaishree SubrahmaniamFabrice Roux

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