Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects
The inheritance of resistance to powdery mildew in the pea cultivar MK-10 and some histological aspects of infection were assessed. For the inheritance study, F1, F2, backcrosses and F3 generations of MK-10 crossed with two susceptible populations were evaluated. Histological evaluations included percentage of germinated conidia, percentage of conidia that formed appresoria, percentage of conidia that established colonies, and number of haustoria per colony. Segregation ratios obtained in the resistance inheritance study were compared by Chi-square (ײ) test and the histological data were analyzed by Tukey's test at 5% probability. It was concluded that resistance of MK-10 to powdery mildew is due to a pair of recessive alleles since it is expressed in the pre-penetration stage and completed by post-penetration localized cellular death, characteristic of the presence of the pair of recessive alleles er1er1.
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Grupo Paulista de Fitopatologia
2012
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oai:scielo:S0100-540520120002000022012-07-23Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspectsSantos,Ricardo Lima dosPavan,Marcelo AgenorSilva,Norberto daFumes,Leandro Augusto Andrade Erysiphe pisi genetic resistance host-pathogen interaction MK-10 histology The inheritance of resistance to powdery mildew in the pea cultivar MK-10 and some histological aspects of infection were assessed. For the inheritance study, F1, F2, backcrosses and F3 generations of MK-10 crossed with two susceptible populations were evaluated. Histological evaluations included percentage of germinated conidia, percentage of conidia that formed appresoria, percentage of conidia that established colonies, and number of haustoria per colony. Segregation ratios obtained in the resistance inheritance study were compared by Chi-square (ײ) test and the histological data were analyzed by Tukey's test at 5% probability. It was concluded that resistance of MK-10 to powdery mildew is due to a pair of recessive alleles since it is expressed in the pre-penetration stage and completed by post-penetration localized cellular death, characteristic of the presence of the pair of recessive alleles er1er1.info:eu-repo/semantics/openAccessGrupo Paulista de FitopatologiaSumma Phytopathologica v.38 n.2 20122012-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052012000200002en10.1590/S0100-54052012000200002 |
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Santos,Ricardo Lima dos Pavan,Marcelo Agenor Silva,Norberto da Fumes,Leandro Augusto Andrade |
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Santos,Ricardo Lima dos Pavan,Marcelo Agenor Silva,Norberto da Fumes,Leandro Augusto Andrade Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| author_facet |
Santos,Ricardo Lima dos Pavan,Marcelo Agenor Silva,Norberto da Fumes,Leandro Augusto Andrade |
| author_sort |
Santos,Ricardo Lima dos |
| title |
Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| title_short |
Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| title_full |
Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| title_fullStr |
Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| title_full_unstemmed |
Inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| title_sort |
inheritance of resistance to powdery mildew in pea and pathogenesis-related aspects |
| description |
The inheritance of resistance to powdery mildew in the pea cultivar MK-10 and some histological aspects of infection were assessed. For the inheritance study, F1, F2, backcrosses and F3 generations of MK-10 crossed with two susceptible populations were evaluated. Histological evaluations included percentage of germinated conidia, percentage of conidia that formed appresoria, percentage of conidia that established colonies, and number of haustoria per colony. Segregation ratios obtained in the resistance inheritance study were compared by Chi-square (ײ) test and the histological data were analyzed by Tukey's test at 5% probability. It was concluded that resistance of MK-10 to powdery mildew is due to a pair of recessive alleles since it is expressed in the pre-penetration stage and completed by post-penetration localized cellular death, characteristic of the presence of the pair of recessive alleles er1er1. |
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Grupo Paulista de Fitopatologia |
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2012 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052012000200002 |
| work_keys_str_mv |
AT santosricardolimados inheritanceofresistancetopowderymildewinpeaandpathogenesisrelatedaspects AT pavanmarceloagenor inheritanceofresistancetopowderymildewinpeaandpathogenesisrelatedaspects AT silvanorbertoda inheritanceofresistancetopowderymildewinpeaandpathogenesisrelatedaspects AT fumesleandroaugustoandrade inheritanceofresistancetopowderymildewinpeaandpathogenesisrelatedaspects |
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