Molecular characterization of slow-rusting genes Lr34/Yr18 in Chinese wheat cultivars
| dc.creator | Yang Wen-Xiong | |
| dc.creator | Yang Fang-Ping | |
| dc.creator | Liang Dan | |
| dc.creator | He Zhonghu | |
| dc.creator | Shang Xun-Wu | |
| dc.creator | Xia Xian-chun | |
| dc.date | 2013-06-07T21:12:19Z | |
| dc.date | 2013-06-07T21:12:19Z | |
| dc.date | 2008 | |
| dc.date.accessioned | 2023-07-17T19:56:54Z | |
| dc.date.available | 2023-07-17T19:56:54Z | |
| dc.identifier | 0496-3490 | |
| dc.identifier | http://hdl.handle.net/10883/2665 | |
| dc.identifier | 10.3724/SP.J.1006.2008.01109 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7508922 | |
| dc.description | Lr34 and Yr18 are important slow rusting resistance genes that have been widely used in many countries. The aim of this study was to identify Lr34/Yr18 genes in 231 Chinese wheat cultivars and 422 landraces using an STS marker csLV34, which can amplify a 150-bp and a 229-bp fragment in the genotypes with and without Lr34/Yr18, respectively. The results indicated that only 14 genotypes carried the resistance genes Lr34/Yr18 in the improved wheat cultivars, with a frequency of 6.1%. Different frequencies were found in wheat cultivars from different zones, which were 0, 3.0%, 21.4%, 16.7%, and 33.3% in North Plain Winter Wheat Region (NPWWR), Yellow-Huai Facultative Winter Wheat Region (YHFWWR), Middle-Lower Yangtze Valley Winter Wheat Region (MLYVWWR), Southwest Winter Wheat Region (SWWR), and Northwest Spring Wheat Region (NSWR), respectively. Whereas, 85.1% of 422 landraces contained Lr34/Yr18, with the frequencies of 89.6%, 77.4%, 93.1%, 93.8%, 96.6%, and 61.1% in NPWWR, YHFWWR, MLYVWWR, SWWR, Southern China Winter Wheat Region (SCWWR) and NSWR, respectively. The marker csLV34 exhibited a good repeatability, and can be therefore used for the identification of Lr34/Yr18 in wheat breeding programs. | |
| dc.description | 1109-1113 | |
| dc.format | ||
| dc.language | English | |
| dc.publisher | Institute of Crop Sciences | |
| dc.rights | CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. | |
| dc.rights | Open Access | |
| dc.source | 7 | |
| dc.source | 34 | |
| dc.source | Acta Agronomica Sinica | |
| dc.subject | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY | |
| dc.subject | Lr34/Yr18 | |
| dc.subject | STS Marker csLV34 | |
| dc.subject | WHEAT | |
| dc.subject | GENES | |
| dc.subject | GENETIC MARKERS | |
| dc.subject | MARKER-ASSISTED SELECTION | |
| dc.title | Molecular characterization of slow-rusting genes Lr34/Yr18 in Chinese wheat cultivars | |
| dc.type | Article | |
| dc.coverage | China |