Association analyses of host genetics, root-colonizing microbes, and plant phenotypes under different nitrogen conditions in maize.

ABSTRACT: The root-associated microbiome (rhizobiome) affects plant health, stress tolerance, and nutrient use efficiency. However, it remains unclear to what extent the composition of the rhizobiome is governed by intraspecific variation in host plant genetics in the field and the degree to which host plant selection can reshape the composition of the rhizobiome. Here, we quantify the rhizosphere microbial communities associated with a replicated diversity panel of 230 maize (Zea mays L.) genotypes grown in agronomically relevant conditions under high N (+N) and low N (-N) treatments. We analyze the maize rhizobiome in terms of 150 abundant and consistently reproducible microbial groups and we show that the abundance of many root-associated microbes is explainable by natural genetic variatio

SUBMITTER: Meier MA 

PROVIDER: S-EPMC9470161 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature