Whole-genome resequencing identifies quantitative trait loci associated with mycorrhizal colonization of soybean

Pawlowski, Michelle L.; Vuong, Tri D.; Valliyodan, Babu; Nguyen, Henry T.; Hartman, G. L.

doi:10.1007/s00122-019-03471-5

Cited by 23 publications

(18 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present analysis is not directly informative as to the mechanisms underlying variation in host response. The level of AM colonization has been reported to differ among varieties in a number of plant species, although greater colonization is not necessarily an indicator of greater host response (Kaeppler et al, 2000;Sawers et al, 2010Sawers et al, , 2017Mascher et al,2014;Watts-Williams et al, 2019;Plouznikoff et al, 2019;Pawlowski et al, 2020). Indeed, the capacity of the host to limit fungal colonization under certain conditions may help to maximize plant benefit, and it is well established that colonization is reduced under nutrient replete conditions (Nouri et al, 2014;Sawers et al, 2017;Karlo et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Ramírez-Flores

Perez-Limon

et al. 2020

Preprint

View full text Add to dashboard Cite

AbstractArbuscular mycorrhizal fungi (AMF) are ubiquitous in cultivated soils, forming symbiotic relationships with the roots of major crop species. Although physiological and molecular genetic studies have demonstrated the potential of the symbiosis to enhance host plant nutrition and alleviate environmental stress, experimental difficulties have complicated estimation of the actual benefit in the field. Furthermore, host response to the symbiosis can range from positive to negative depending on the plant variety. Here, a novel mapping strategy, based on the use of AMF-resistant plant varieties, was implemented to evaluate maize response to arbuscular mycorrhiza in the field. AMF were found to make a significant contribution to plant growth and yield components, both in terms of absolute affect and as a driver of variation among plant genotypes. Characterization of the genetic architecture of host response distinguished mycorrhiza dependence and benefit and indicated genetic trade-off between mycorrhizal and non-mycorrhizal growth. This approach is applicable to other crop species, permits further mechanistic analysis and is scalable to yield trials.

show abstract

Section: Discussionmentioning

confidence: 99%

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Ramírez-Flores

Perez-Limon

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Additional characterization is required to discover the mechanistic basis of the differences we saw in the host response. Although we have yet to conduct a detailed quantification of colonization across all families, a greater abundance of root internal fungal structures is not necessarily an indicator of greater host response ( Kaeppler et al, 2000 ; Sawers et al, 2017 ; Watts‐Williams et al, 2019 ; Plouznikoff et al, 2019 ; Pawlowski et al, 2020 ; Huang et al, 2020 ). Indeed, the capacity of the host to limit fungal colonization under certain conditions may maximize plant benefit, and plants will restrict colonization under high nutrient conditions ( Karlo et al, 2020 ; Nouri et al, 2014 ; Sawers et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

“…There are, however, many reports of intra-specific differences in the impact AM symbiosis has on the plant host ( e.g. Kaeppler et al, 2000 ; Mascher et al, 2014 ; Diedhiou et al, 2016 ; Sawers et al, 2017 ; Watts‐Williams et al, 2019 ; Pawlowski et al, 2020 ). In the case of rice, a variant of the OsCERK1 LysM receptor kinase present in the wild progenitor species Oryza rufipogon has been linked to greater colonization by AMF and enhanced host response, although this variant was not found to be segregating in the agronomically important japonica group ( Huang et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Ramírez-Flores

Perez-Limon

et al. 2020

eLife

View full text Add to dashboard Cite

Arbuscular mycorrhizal fungi (AMF) are ubiquitous in cultivated soils, forming symbiotic relationships with the roots of major crop species. Studies in controlled conditions have demonstrated the potential of AMF to enhance the growth of host plants. However, it is difficult to estimate the actual benefit in the field, not least because of the lack of suitable AMF-free controls. Here we implement a novel strategy using the selective incorporation of AMF-resistance into a genetic mapping population to evaluate maize response to AMF. We found AMF to account for about one-third of the grain production in a medium input field, as well as to affect the relative performance of different plant genotypes. Characterization of the genetic architecture of the host response indicated a trade-off between mycorrhizal dependence and benefit. We identified several QTL linked to host benefit, supporting the feasibility of breeding crops to maximize profit from symbiosis with AMF.

show abstract

“…Perennial life history traits (e.g. higher root biomass or carbon supply) may competitively favor Claroideoglomus (Pawlowski et al , 2020; Liu et al , 2020) or DUN may have specific adaptations that maximize colonization by this locally-abundant AMF taxon. This evidence of ecotypic differentiation complements work showing that single mutations to key genes can alter plant-AMF signaling (Pivato et al , 2007) and work documenting species-level differences in plant-AMF associations (Walters et al , 2018; Eck et al , 2019), and provides an avenue into investigating the evolution of host-AMF interactions across diverse Mimulus .…”

Section: Discussionmentioning

confidence: 99%

“…Understanding how specific plant traits interact with soil biotic communities (Reinhold-Hurek et al , 2015; Cordovez et al , 2019) may require a within-species perspective (Van Nuland et al , 2016), but most studies of variation in PSF components have focused on differences among plant species (Kulmatiski et al , 2008; Van Nuland et al , 2016; Mariotte et al , 2018). A micro-evolutionary approach may provide a window into the genetic and physiological mechanisms governing PSF interactions (Wilschut et al , 2019; Mateus et al , 2019; Pawlowski et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

Divergence in bidirectional plant-soil feedbacks between montane annual and coastal perennial ecotypes of yellow monkeyflower (Mimulus guttatus)

McIntosh

Bullington

Lekberg

et al. 2020

Preprint

View full text Add to dashboard Cite

SUMMARYUnderstanding the physiological and genetic mechanisms underlying plant variation in interactions with root-associated biota (RAB) requires a micro-evolutionary approach. We use locally adapted montane annual and coastal perennial ecotypes of Mimulus guttatus (yellow monkeyflower) to examine population-scale differences in plant-RAB-soil feedbacks.We characterized fungal communities for the two ecotypes in-situ and used a full-factorial greenhouse experiment to investigate the effects of plant ecotype, RAB source, and soil origin on plant performance and endophytic root fungal communities.The two ecotypes harbored different fungal communities and responsiveness to soil biota was highly context-dependent. Soil origin, RAB source, and plant ecotype all affected the intensity of biotic feedbacks on plant performance. Feedbacks were primarily negative, and we saw little evidence of local adaptation to either soils or RAB. Both RAB source and soil origin significantly shaped fungal communities in roots of experimental plants. Further, the perennial ecotype was more colonized by arbuscular mycorrhizal fungi (AMF) than the montane ecotype, and preferentially recruited home AMF taxa.Our results suggest life history divergence and distinct edaphic habitats shape plant responsiveness to RAB and influence specific associations with potentially mutualistic root endophytic fungi. Our results advance the mechanistic study of intraspecific variation in plant–soil–RAB interactions.

show abstract

Whole-genome resequencing identifies quantitative trait loci associated with mycorrhizal colonization of soybean

Cited by 23 publications

References 64 publications

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Divergence in bidirectional plant-soil feedbacks between montane annual and coastal perennial ecotypes of yellow monkeyflower (Mimulus guttatus)

Contact Info

Product

Resources

About