Traditional breeding has rarely targeted traits

The gap

Evidence profile

Sourced from the future work and stated research gap of the source papers, classified as general, spanning 3 journals. Those papers have been cited 1 times in total.

Supporting evidence — 3 representative gaps

• Considerations for microbial inoculation under dryland stress conditions (2026) · Biology and Fertility of Soils · cited 1× · doi

  Evidence from the literature indicates that microbial inocu- lation can be effective as biological stress modulators by enhancing nutrient uptake, osmotic regulation, phytohor- mone balance, systemic stress tolerance, etc. in dryland regions. However, plant-soil-microbe interactions are con- strained by ecological and environmental factors that modu- late inoculant establishment and function, resulting in strong context dependencies and inconsistencies in outcomes. The fragility of these regions warrants several critical consid- erations. The near-exclusive focus on isolating and testing super microbial strains ignores the ecological reality that function emerges from multi-species interactions under poly-stress environments. While prioritizing microbial strain selection from extreme environments for their pre- adapted stress resilience and functional complementarity is critical, crop and native microbial community of the site of inoculation is equally critical. Breeding crops for enhanced plant-microbe symbioses must incorporate genotype × microbiome × environment optimizations. This review syn- thesized evidence across disciplines to show that plants and microbial inoculants possess inherent traits which converge to shape the holobiont. When, where, and how microbial inoculants are applied are critical. While 4R nutrient stew- ardship framework underpins sustainable mineral fertilizer management, the 4Rs of microbial inoculation must encom- pass the Right microbial product (not Source), applied at the Right rate, at the Right time, and in the Right place. Further, microbial formulations should be contextualized consider- ing the native microbes, crop species, soil properties, etc. The contextualized formulations should follow contextual- ized inoculation strategies instead of treating inoculation as a one-time, static event (e.g. seed coating at sowing, etc.). The fate and legacy effects of microbial inoculants in dry- lands are largely unknown, rarely measured, making it chal- lenging to predict the outcome of microbial inoculations or reliably trust positive results. Current research predomi- nantly measures only plant or soil performance outcomes without confirming a successful inoculation. A successful inoculation must colonize the root system, establish a posi- tive interaction with the host plant, and persist in the soil amidst competition from native microbes. Future studies must move beyond plant- and soil-centric performance eval- uations to directly monitor root colonization, host-microbe Biology and Fertility of Soils1 3interaction establishment, and long-term persistence in soil. Advanced molecular tracking technologies should be integrated into standard inoculation protocols to validate these critical microbial processes rather than inferring suc- cess solely from plant and soil responses. Addressing these aspects is critical for reliable microbial formulations/inocu- lations with consistent results in dryland agriculture. Author contributions O.B.O. wrote the main manuscript text, pre- pared figures/tables, and reviewed the manuscript. Data availability No datasets were generated or analysed during the current study.

  generalfuture workevidence 5/5
  Keywords: microbial soil inoculation plant critical stress must right microbe native inoculants formulations evidence inocu nutrient
• Plant Microbiota: Emerging Tools for Sustainable Crop Growth and Health (2026) · International Journal For Multidisciplinary Research · doi

  The expanding understanding of plant microbiota has fundamentally reshaped contemporary perspectives on crop productivity and resilience. Rather than functioning as isolated biological systems, plants are increasingly recognized as holobionts whose growth, development, and stress adaptation are strongly influenced by associated microbial communities (Berg et al., 2020; Trivedi et al., 2020). This conceptual transition highlights the necessity of integrating microbiome science into sustainable agricultural frameworks. Despite substantial progress in characterizing plant-associated microbial diversity, the functional predictability of microbiomes under field conditions remains limited. Future research must therefore prioritize the development of predictive microbiome models capable of anticipating microbial assembly, persistence, and functionality across varying soil types, climatic regimes, and crop genotypes (Mukherjee et al., 2024; Ge & Wang, 2025; Romão et al., 2025).

  generalfuture workevidence 5/5
  Keywords: microbial plant crop development associated microbiome expanding understanding microbiota fundamentally reshaped contemporary perspectives productivity resilience
• Breeding for beneficial microbial associations (2026) · Nature Communications · doi

  Traditional breeding has rarely targeted traits that enhance beneficial plant-microbe interactions. Conventional agricultural practices have often degraded soil health and microbial diversity. There is a need for the development of more robust and reliable microbial inoculants to support sustainable agriculture.

  generalstated research gapevidence 5/5
  Keywords: traditional breeding has rarely targeted traits enhance beneficial

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