Fungal-host diversity among mycoheterotrophic plants increases proportionally to their fungal-host overlap

Ecology and Evolution
Sofia I F GomesSerguei Saavedra

Abstract

The vast majority of plants obtain an important proportion of vital resources from soil through mycorrhizal fungi. Generally, this happens in exchange of photosynthetically fixed carbon, but occasionally the interaction is mycoheterotrophic, and plants obtain carbon from mycorrhizal fungi. This process results in an antagonistic interaction between mycoheterotrophic plants and their fungal hosts. Importantly, the fungal-host diversity available for plants is restricted as mycoheterotrophic interactions often involve narrow lineages of fungal hosts. Unfortunately, little is known whether fungal-host diversity may be additionally modulated by plant-plant interactions through shared hosts. Yet, this may have important implications for plant competition and coexistence. Here, we use DNA sequencing data to investigate the interaction patterns between mycoheterotrophic plants and arbuscular mycorrhizal fungi. We find no phylogenetic signal on the number of fungal hosts nor on the fungal hosts shared among mycoheterotrophic plants. However, we observe a potential trend toward increased phylogenetic diversity of fungal hosts among mycoheterotrophic plants with increasing overlap in their fungal hosts. While these patterns remain for gr...Continue Reading

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Citations

May 31, 2017·The Journal of Animal Ecology·Serguei SaavedraRudolf P Rohr
May 1, 2019·The New Phytologist·Sofia I F GomesNadejdaA Soudzilovskaia
May 29, 2020·Journal of Integrative Bioinformatics·Irene MartorelliFons J Verbeek
Aug 28, 2020·Scientific Reports·Flávia de Fátima CostaVania Aparecida Vicente

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Datasets Mentioned

BETA
PRJNA339563
KX756649

Software Mentioned

R
Geneious Pro
ape
MAFFT
jModeltest
vegan
BLAST

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