English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Background:  Herbicide application to control weeds can promote a rapid selection of resistant phenotypes in small geographic areas. Also, in areas with a spatial heterogeneous management, resistance may evolve independently, promoting local adaptation in weeds. In the Mexican region known as “El Bajio,” 100,000 ha are cultivated with wheat, and the weed   Phalaris minor , resistant to ACCase-inhibiting herbicides is present common.   Question:  We aim to identify the population structure of two genes in four different  P. minor  biotypes from “El Bajio” and to determine their association with phenology and plant growth differences (biomass and seed yield) that may contribute to survival in the agricultural environment.   Studied species  :   Phalaris minor  Retz .    Study site and years of study  :    Methods:  The diversity of the  psbA  gene and the sequence of two ACCase gene fragments as well as phenology, growth and biomass allocation were evaluated.   Results:  Results indicated different polymorphism levels for the two genes. There were no differences in the  psbA  gene between biotypes, although the ACCase gene exhibited high polymorphism level. In addition, each biotype showed differences in phenology, biomass accumulation and fecundity.   Conclusions:  The ACCase-inhibiting herbicide resistance in “El Bajio” region might be a resistance hotspot leading to the local adaptation of weeds.

Evolution, growth and phenology of Phalaris minor biotypes resistant to ACCase-inhibiting herbicides in Mexico