| dc.creator | Li,Lingxu | |
| dc.creator | Luo,Xiaoyong | |
| dc.creator | Wang,Jinxin | |
| dc.date | 2017-06-01 | |
| dc.date.accessioned | 2019-04-24T21:20:25Z | |
| dc.date.available | 2019-04-24T21:20:25Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000200150 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/56280 | |
| dc.description | ABSTRACT Beckmannia syzigachne (Steud.) Fernald is one of the main grass weeds severely harming wheat (Triticum aestivum L.) production in rice-wheat areas in China. Fenoxaprop-p-ethyl is the main herbicide used to selectively control grass weed in China. Beckmannia syzigachne has evolved resistance to fenoxaprop-p-ethyl due to continuous application. To investigate fenoxaprop-p-ethyl resistant level and mechanism in B. syzigachne in a portion of the rice-wheat area in China, samples from 31 field populations were collected and treated with fenoxaprop-p-ethyl. The results show that 10 of the 31 tested field populations evolved a high level of resistance to fenoxaprop-p-ethyl. A portion of the acetyl-coenzyme A carboxylase (ACCase) gene was amplified, sequenced and aligned. The known Ile-1781-Leu, Ile-1781-Val, Ile-2041-Asn, Asp-2078-Gly and Gly-2096-Ala mutations were identified in five resistant populations. None of the known resistant substitutions was identified in the other five resistant populations, which means the resistance to fenoxaprop-p-ethyl in these populations is likely endowed by non-target-site resistance mechanism. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Instituto de Investigaciones Agropecuarias, INIA | |
| dc.relation | 10.4067/S0718-58392017000200150 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Chilean journal of agricultural research v.77 n.2 2017 | |
| dc.subject | ACCase | |
| dc.subject | American slough grass | |
| dc.subject | amino acid substitution | |
| dc.subject | resistant level | |
| dc.subject | resistant mechanism. | |
| dc.title | Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China | |
