| dc.creator | Maia, T. A. | |
| dc.creator | Caixeta, E. T. | |
| dc.creator | Mizubuti, E. S. G. | |
| dc.creator | Zambolim, L. | |
| dc.creator | Maciel-Zambolim, E. | |
| dc.date | 2019-01-18T13:34:28Z | |
| dc.date | 2019-01-18T13:34:28Z | |
| dc.date | 2013-09 | |
| dc.date.accessioned | 2023-09-27T22:19:32Z | |
| dc.date.available | 2023-09-27T22:19:32Z | |
| dc.identifier | 1448-6032 | |
| dc.identifier | https://doi.org/10.1007/s13313-013-0213-3 | |
| dc.identifier | http://www.locus.ufv.br/handle/123456789/23100 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8973672 | |
| dc.description | Efforts to obtain durable resistant cultivars to coffee leaf rust have a long history of disappointment because of the lack of information on the Hemileia vastatrix evolutionary potential. In this study, the AFLP marker was used to analyze the genetic structure of a field population of H. vastatrix from different coffee genotypes cultivated in a wide geographic region of Brazil’s main production areas. A total of 91 isolates were sampled from genotypes of Coffea arabica, C. canephora and Híbrido de Timor/Icatu derivatives. Each isolate exhibited unique multilocus AFLP genotypes with no identical isolates obtained from the same geographical and host origins. This finding was corroborated by a small correlation between genetic similarity and geographic distance (R xy = 0.31, P = 0.23). The analyses showed a low genetic differentiation (G ST = 0.026) between the populations defined by a host and AMOVA analysis, most of the genetic variance (99.56 %) was attributed to differences within populations. In addition, based on the index of association (IA), the random mating possibility was not rejected (IA = 0.225, P = 0.123) for the population of H. vastatrix derived from C. canephora. This result suggested that H. vastatrix in Brazil behaves as a large undifferentiated population with a high level of genotypic diversity that is unstructured with regard to its geographic and host origins. | |
| dc.format | pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Australasian Plant Pathology | |
| dc.relation | Volume 42, Issue 5, Pages 533– 542, September 2013 | |
| dc.rights | Australasian Plant Pathology Society Inc. 2013 | |
| dc.subject | Coffee leaf rust | |
| dc.subject | Durable resistance | |
| dc.subject | Population genetics | |
| dc.subject | Coffea arabica | |
| dc.subject | Coffea canephora | |
| dc.title | The population structure of Hemileia vastatrix in Brazil inferred from AFLP | |
| dc.type | Artigo | |
