Registro:
Título en inglés:
A dinitroaniline herbicide resistance mutation can be nearly lethal to plants
Autor/es:
Wang, Yahnui; Han, Heping; Chen, Jinyi; Yu, Qin; Vila Aiub, Martín Miguel; Beckie, Hugh J.; Powles, Stephen B.
Filiación:
Wang, Yahnui. Guangxi Academy of Agricultural Sciences. Institute of Plant Protection. Guangxi Key Laboratory for Biology of Crop Diseases and Insect Pests. Nanning, China.
Wang, Yahnui. University of Western Australia (UWA). School of Agriculture and Environment. Herbicide Resistance Initiative (AHRI), Crawley, Western Australia, Australia.
Han, Heping. University of Western Australia (UWA). School of Agriculture and Environment. Herbicide Resistance Initiative (AHRI), Crawley, Western Australia, Australia.
Chen, Jinyi. University of Western Australia (UWA). School of Agriculture and Environment. Herbicide Resistance Initiative (AHRI), Crawley, Western Australia, Australia.
Yu, Qin. University of Western Australia (UWA). School of Agriculture and Environment. Australian Herbicide Resistance Initiative (AHRI). Crawley, Western Australia, Australia.
Yu, Qin. Nanjing Agricultural University. College of Plant Protection. Nanjing, China.
Vila Aiub, Martín Miguel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Ecología. Buenos Aires, Argentina.
Vila Aiub, Martín Miguel. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Vila Aiub, Martín Miguel. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Vila Aiub, Martín Miguel. University of Western Australia (UWA). School of Agriculture and Environment. Australian Herbicide Resistance Initiative (AHRI). Crawley, Western Australia, Australia.
Beckie, Hugh J. University of Western Australia (UWA). School of Agriculture and Environment. Australian Herbicide Resistance Initiative (AHRI). Crawley, Western Australia, Australia.
Powles, Stephen B. University of Western Australia (UWA). School of Agriculture and Environment. Australian Herbicide Resistance Initiative (AHRI). Crawley, Western Australia, Australia.
Título revista:
Pest Management Science
Temas:
TRIFLULARIN; RESISTANCE COST; A - TUBULIN GENE MUTATION; ARG - 243 - MET; VAL - 202 - PHE
Url al documento en Intranet FAUBA:
Resumen:
BACKGROUND: Lolium rigidum is the most important weed in Australian agriculture and pre-emergence dinitroaniline herbi-cides (e.g., trifluralin) are widely and persistently used for Lolium control. Consequently, evolution of resistance to dinitroani-line herbicides has been increasingly reported. Resistance-endowing target-site ⊍-tubulin gene mutations are identified with varying frequency. This study investigated the putative fitness cost associated with the common resistance mutation Val–202–Phe and the rare resistance mutation Arg–243–Met causing helical plant growth. RESULTS: Results showed a deleterious effect of Arg–243–Met on fitness when plants are homozygous for this mutation. This was evidenced as high plant mortality, severely diminished root and aboveground vegetative growth (lower relative growth rate), and very poor fecundity compared with the wild-type, which led to a nearly lethal fitness cost of >99.9% in competition with a wheat crop. A fitness penalty in vegetative growth was evident, but to a much lesser extent, in plants heterozygous for the Arg–243–Met mutation. By contrast, plants possessing the Val–202–Phe mutation exhibited a fitness advantage in vegeta- tive and reproductive growth. CONCLUSION: The ⊍-tubulin mutations Arg–243–Met and Val–202–Phe have contrasting effects on fitness. These results help understand the absence of plants homozygous for the Arg–243–Met mutation and the high frequency of plants carrying the Val–202–Phe mutation in dinitroaniline-resistant L. rigidum populations. The ⊍-tubulin Arg–243–Met mutation can have an exceptional fitness cost with nearly lethal effects on resistant L. rigidum plants.
Citación:
---------- APA ----------
Wang, Y.; Han, H.; Chen, J.; Yu, Q.; Vila Aiub, M. M. ... Powles, Stephen B. (2022). A dinitroaniline herbicide resistance mutation can be nearly lethal to plants. Pest Management Science,78, (4),p.1547-1554
10.1002/ps.6773
---------- CHICAGO ----------
Wang, Yahnui,Han, Heping,Chen, Jinyi,Yu, Qin,Vila Aiub, Martín Miguel,Beckie, Hugh J., et al.. 2022. "A dinitroaniline herbicide resistance mutation can be nearly lethal to plants". Pest Management Science 78, no.4:1547-1554.
Recuperado de http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2022wang