VERNALIZATION1 Modulates Root System Architecture in Wheat and Barley

Voss-Fels, Kai P.; Robinson, Hannah; Mudge, Stephen R.; Richard, Cécile; Newman, Saul Justin; Wittkop, Benjamin; Stahl, Andreas; Friedt, Wolfgang; Frisch, Matthias; Gabur, Iulian; Miller-Cooper, Anika; Campbell, Bradley C.; Kelly, Alison; Fox, Glen; Christopher, Jack; Christopher, Mandy; Chenu, Karine; Franckowiak, J. D.; Mace, Emma; Borrell, Andrew; Eagles, H. A.; Jordan, David R.; Botella, José Ramón; Hammer, Graeme; Godwin, Ian D.; Trevaskis, Ben; Hickey, Lee T.

doi:10.1016/j.molp.2017.10.005

Cited by 127 publications

(98 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Still, it was already demonstrated that the presence of the gene DEEPER ROOTING 1 (DRO1) in rice cultivars affords the crop yield stability under drought, and it does not cause any penalty under irrigated conditions (Uga et al, 2011(Uga et al, , 2013. This finding is also in agreement with Voss-Fels et al (2017), who found that VERNALIZATION 1, a key gene influencing flowering time and aboveground development in wheat, also has an important pleiotropic role on root system architecture and alone controls 8% of RA total variation.…”

Section: Field Variation For Grain Size Based On Differences In Root supporting

confidence: 69%

“…As mentioned, extending water availability after anthesis is normally linked to a prolonged grain-filling period before drying out. This finding is also in agreement with Voss-Fels et al (2017), who found that VERNALIZATION 1, a key gene influencing flowering time and aboveground development in wheat, also has an important pleiotropic role on root system architecture and alone controls 8% of RA total variation. All traits connected to RA show very high heritability and were not affected by the simulated water scarcity after anthesis, which as indicated above, supports the case for strong genetic control.…”

Section: Field Variation For Grain Size Based On Differences In Root mentioning

confidence: 99%

See 1 more Smart Citation

Root System Architecture and Its Association with Yield under Different Water Regimes in Durum Wheat

et al. 2018

View full text Add to dashboard Cite

Durum wheat (Triticum durum Desf.) is a major cereal crop grown globally, but its production is often hindered by droughts. Breeding for adapted root system architecture should provide a strategic solution for better capturing moisture. The aim of this research was to adapt low‐cost and high‐throughput methods for phenotyping root architecture and exploring the genetic variability among 25 durum genotypes. Two protocols were used: the “clear pot” for seminal root and the “pasta strainer” to evaluate mature roots. Analysis of variance revealed significant segregation for all measured traits with strong genetic control. Shallow and deep root classes were determined with different methods and then tested in yield trials at five locations with different water regimes. Simple trait measurements did not correlate to any of the traits consistently across field sites. Multitrait classification instead identified significant superiority of deep‐rooted genotypes with 16 to 35% larger grains in environments with limited moisture, but 9 to 24% inferior in the drip irrigated site. Combined multitrait classification identified a 28 to 42% advantage in grain yield for the class with deeper roots at two environments where moisture was limited. Further discrimination revealed that yield advantage of 37 to 38% under low moisture could be achieved by the deepest root types, but that it also caused a 20 to 40% yield penalty in moisture‐rich environments compared with the shallowest root types. In conclusion, the proposed methodologies enable low‐cost and quick characterization of root behavior in durum wheat with significant distinction of agronomic performance.

show abstract

Section: Field Variation For Grain Size Based On Differences In Root supporting

confidence: 69%

Section: Field Variation For Grain Size Based On Differences In Root mentioning

confidence: 99%

Root System Architecture and Its Association with Yield under Different Water Regimes in Durum Wheat

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Since modern varieties have been selected with limited or no knowledge of belowground interactions, how was the capacity of shaping the rhizosphere microbiota retained within the cultivated germplasm? The recent observation that genes controlling reproductive traits display pleiotropic effects on root system architecture 51 could provide a direct link between crop selection and microbiota recruitment in modern varieties. These traits, and in particular genes encoding flower developments, show a marked footprint of eco-geographic adaptation and have been selected during plant domestication and breeding 29 .…”

Section: Discussionmentioning

confidence: 99%

A footprint of plant eco-geographic adaptation on the composition of the barley rhizosphere bacterial microbiota

Terrazas

Balbirnie-Cumming

Morris

et al. 2020

Preprint

View full text Add to dashboard Cite

The microbiota thriving in the rhizosphere, the thin layer of soil surrounding plant roots, plays a critical role in plant’s adaptation to the environment. Domestication and breeding selection have progressively differentiated the microbiota of modern crops from the ones of their wild ancestors. However, the impact of eco-geographical constraints faced by domesticated plants and crop wild relatives on recruitment and maintenance of the rhizosphere microbiota remains to be fully elucidated. Here we performed a comparative 16S rRNA gene survey of the rhizosphere of 4 domesticated and 20 wild barley (Hordeum vulgare) genotypes grown in an agricultural soil under controlled environmental conditions. We demonstrated the enrichment of individual bacteria mirrored the distinct eco-geographical constraints faced by their host plants. Unexpectedly, Elite varieties exerted a stronger genotype effect on the rhizosphere microbiota when compared with wild barley genotypes adapted to desert environments with a preferential enrichment for members of Actinobacteria. Finally, in wild barley genotypes, we discovered a limited, but significant, correlation between microbiota diversity and host genomic diversity. Our results revealed a footprint of the host’s adaptation to the environment on the assembly of the bacteria thriving at the root-soil interface. In the tested conditions, this recruitment cue layered atop of the distinct evolutionary trajectories of wild and domesticated plants and, at least in part, is encoded by the barley genome. This knowledge will be critical to design experimental approaches aimed at elucidating the recruitment cues of the barley microbiota across a range of soil types.

show abstract

“…Vigor, an elusive but important target in most crop breeding programs, is related to both nutrient capture and utilization. Phenology regulates the duration and extent of soil exploration, as well as the duration of nutrient utilization in plant tissue, and is therefore closely linked to nutrient efficiency (Nord & Lynch, ; Voss‐Fels et al ., ). Many of these are common selection criteria in crop breeding.…”

Section: Nutrient Targetsmentioning

confidence: 97%

Root phenotypes for improved nutrient capture: an underexploited opportunity for global agriculture

2019

View full text Add to dashboard Cite

Summary Nutrient‐efficient crops are a solution to the two grand challenges of modern agriculture: improving food security while reducing environmental impacts. The primary challenges are (1) nitrogen (N) and phosphorus (P) efficiency; (2) potassium (K), calcium (Ca), and magnesium (Mg) efficiency for acid soils; and (3) iron (Fe) and zinc (Zn) efficiency for alkaline soils. Root phenotypes are promising breeding targets for each of these. The Topsoil Foraging ideotype is beneficial for P capture and should also be useful for capture of K, Ca, and Mg in acid soils. The Steep, Cheap, and Deep ideotype for subsoil foraging is beneficial for N and water capture. Fe and Zn capture can be improved by targeting mechanisms of metal mobilization in the rhizosphere. Root hairs and phenes that reduce the metabolic cost of soil exploration should be prioritized in breeding programs. Nutrient‐efficient crops should provide benefits at all input levels. Although our current understanding is sufficient to deploy root phenotypes for improved nutrient capture in crop breeding, this complex topic does not receive the resources it merits in either applied or basic plant biology. Renewed emphasis on these topics is needed in order to develop the nutrient‐efficient crops urgently needed in global agriculture.

show abstract

VERNALIZATION1 Modulates Root System Architecture in Wheat and Barley

Cited by 127 publications

References 11 publications

Root System Architecture and Its Association with Yield under Different Water Regimes in Durum Wheat

Root System Architecture and Its Association with Yield under Different Water Regimes in Durum Wheat

A footprint of plant eco-geographic adaptation on the composition of the barley rhizosphere bacterial microbiota

Root phenotypes for improved nutrient capture: an underexploited opportunity for global agriculture

Contact Info

Product

Resources

About