Microtubule cytoskeleton and mycorrhizal roots

Ho-Plágaro, Tania; Tamayo-Navarrete, María I.; Garrido, José Manuel Garcı́a

doi:10.1080/15592324.2022.2031504

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…On the other hand, these EXO70 tethering complexes are also involved in symbiotic relationships. For instance, EXO70I is required for the development of the periarbuscular membrane during Arbuscular Mycorrhizal (AM) symbiosis in Medicago truncatula (Zhang et al, 2015;Ho-Plágaro et al, 2022). Furthermore, in legumes such as soybean, the tethering system GmExo70J is necessary for the establishment of the symbiosis with nitrogen-xing rhizobia (Wang et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Genetic mapping of the root-mycobiota in rice and its role in drought tolerance

Andreo-Jiménez

Beest

Kruijer

et al. 2023

Preprint

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Background Rice is the second most produced crop worldwide, but it is highly susceptible to drought-induced yield loss. Micro-organisms can potentially alleviate the negative effects of drought but how they are associated with their host is unclear. The aim of the present study was to unravel the genetic factors involved in this process, and whether it plays a role in rice drought tolerance. Results To achieve this, we characterized the composition of the root-mycobiota in 296 rice accessions (Oryza sativaL. subsp. indica), grown in the field under control and drought conditions. A Genome Wide Association Study (GWAS) was used to identify marker-trait associations between rice Single Nucleotide Polymorphism (SNP) markers and root mycobiota. This resulted in the identification of ten significant (LOD > 4) SNPs associated with six root associated fungi and four significant SNPs associated with fungi-mediated drought tolerance. The analysis of the genes underlying the loci of the significant marker-trait associations identified a priori candidates including genes known to be involved in pathogen defense, abiotic stress responses and cell-wall remodeling processes. Conclusion Our study shows that the rice genetics affects the recruitment of fungi, some of which affect yield under drought, and provides candidate gene targets for breeding to improve rice-fungal interactions and drought tolerance.

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Section: Discussionmentioning

confidence: 99%

Genetic mapping of the root-mycobiota in rice and its role in drought tolerance

Andreo-Jiménez

Beest

Kruijer

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…On the other hand, these EXO70 tethering complexes are also involved in symbiotic relationships. For instance, EXO70I is required for the development of the peri-arbuscular membrane during arbuscular mycorrhizal (AM) symbiosis in Medicago truncatula (Zhang et al 2015 ; Ho-Plágaro et al 2022 ). Furthermore, in legumes such as soybean, the tethering system GmExo70J is a precondition for establishment of the symbiosis with nitrogen-fixing rhizobia (Wang et al 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Genetic Mapping of the Root Mycobiota in Rice and its Role in Drought Tolerance

Andreo-Jiménez

Beest

Kruijer

et al. 2023

Rice

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Background Rice is the second most produced crop worldwide, but is highly susceptible to drought. Micro-organisms can potentially alleviate the effects of drought. The aim of the present study was to unravel the genetic factors involved in the rice-microbe interaction, and whether genetics play a role in rice drought tolerance. For this purpose, the composition of the root mycobiota was characterized in 296 rice accessions (Oryza sativa L. subsp. indica) under control and drought conditions. Genome wide association mapping (GWAS) resulted in the identification of ten significant (LOD > 4) single nucleotide polymorphisms (SNPs) associated with six root-associated fungi: Ceratosphaeria spp., Cladosporium spp., Boudiera spp., Chaetomium spp., and with a few fungi from the Rhizophydiales order. Four SNPs associated with fungi-mediated drought tolerance were also found. Genes located around those SNPs, such as a DEFENSIN-LIKE (DEFL) protein, EXOCYST TETHERING COMPLEX (EXO70), RAPID ALKALINIZATION FACTOR-LIKE (RALFL) protein, peroxidase and xylosyltransferase, have been shown to be involved in pathogen defense, abiotic stress responses and cell wall remodeling processes. Our study shows that rice genetics affects the recruitment of fungi, and that some fungi affect yield under drought. We identified candidate target genes for breeding to improve rice-fungal interactions and hence drought tolerance.

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