Research Article Molecular Characterization and Differential Interaction of Xanthomonas axonopodis pv. phaseoli and Xanthomonas fuscans subsp. fuscans with Common Beans (Phaseolus vulgaris)
| Autor: | De Paiva Bar, Araújo Lg, Borba Tc, Wendl |
|---|---|
| Přispěvatelé: | BRUNA ALICIA RAFAEL DE PAIVA, UFG, ADRIANE WENDLAND FERREIRA, CNPAF, TEREZA CRISTINA DE OLIVEIRA BORBA, CNPAF, LEILA G. ARAUJO, UFG. |
| Rok vydání: | 2018 |
| Předmět: |
Genetics
Genetic diversity biology Xanthomonas fuscans Host (biology) Inoculation Beans Common bacterial blight Doença de Planta General Medicine biology.organism_classification Genotype Genetic structure Phaseolus Vulgaris Xanthomonas axonopodis Plant diseases and disorders Phaseolus Genética Molecular Molecular Biology Feijão |
| Zdroj: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| ISSN: | 1676-5680 |
| DOI: | 10.4238/gmr16039871 |
| Popis: | The common bacterial blight, caused by Xanthomonas axonopodis pv. phaseoli (Xap) and X. fuscans subsp. fuscans (Xff), is one of the most important dry bean diseases of bacterial etiology. The present work aimed to study the genetic structure among and within populations, and also identify the pathogenic variability of Xap and Xff isolates evaluating the horizontal and vertical resistance of the host. A total of 42 Xap and Xff isolates were obtained were submitted to molecular characterization by rep-PCR markers, and inoculated in the genotypes CNFP 10120, BRS Notável, and Rosinha G-2, for differential interaction studies. In the analysis of genetic structure, the coefficient of genetic differentiation (GST=0.5154) revealed diversity both within and among the pathogenic populations, confirming the result obtained by AMOVA (FST=0.5198). Of a total of 51 loci, 98% were polymorphic, among Xap 59% and within Xff only 21% were polymorphic. In studies of pathogenic variability, diallelic analyses showed significant effects of the general combination ability (GCA), of the general aggression ability (GAA), and of the specific interaction ability (SIA). Therefore, seven races were classified through the differential behavior of all isolates in the three genotypes of bean. Made available in DSpace on 2019-11-20T18:10:11Z (GMT). No. of bitstreams: 1 CNPAF2018gmr.pdf: 624894 bytes, checksum: dfa7648f23c5f040344db77f685b58e6 (MD5) Previous issue date: 2018 |
| Databáze: | OpenAIRE |
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