Competitive ability not kinship affects growth of Arabidopsis thaliana accessions.


Autoria(s): Masclaux F.; Hammond R.L.; Meunier J.; Gouhier-Darimont C.; Keller L.; Reymond P.
Data(s)

2010

Resumo

In many organisms, individuals behave more altruistically towards relatives than towards unrelated individuals. Here, we conducted a study to determine if the performance of Arabidopsis thaliana is influenced by whether individuals are in competition with kin or non-kin. We selected seven pairs of genetically distinct accessions that originated from local populations throughout Europe. We measured the biomass of one focal plant surrounded by six kin or non-kin neighbours in in vitro growth experiments and counted the number of siliques produced per pot by one focal plant surrounded by four kin or non-kin neighbours. The biomass and number of siliques of a focal plant were not affected by the relatedness of the neighbour. Depending on the accession, a plant performed better or worse in a pure stand than when surrounded by non-kin plants. In addition, whole-genome microarray analyses revealed that there were no genes differentially expressed between kin and non-kin conditions. In conclusion, our study does not provide any evidence for a differential response to kin vs non-kin in A. thaliana. Rather, the outcome of the interaction between kin and non-kin seems to depend on the strength of the competitive abilities of the accessions.

Identificador

https://serval.unil.ch/?id=serval:BIB_0AAB33C96A1F

isbn:1469-8137 (Electronic)

pmid:19886895

doi:10.1111/j.1469-8137.2009.03057.x

http://my.unil.ch/serval/document/BIB_0AAB33C96A1F.pdf

http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:serval-BIB_0AAB33C96A1F1

isiid:000272344800030

Idioma(s)

en

Direitos

info:eu-repo/semantics/openAccess

Fonte

New Phytologist, vol. 185, no. 1, pp. 322-331

Palavras-Chave #Arabidopsis/genetics; Arabidopsis/growth & development; Biomass; Ecology; Fruit; Genes, Plant; Genetic Variation; Genome; Reproduction; Selection, Genetic
Tipo

info:eu-repo/semantics/article

article