Factors Affecting the Vineyard Populational Diversity of Plasmopara viticola

Susana Boso; Pilar Gago; José-Luis Santiago; María de la Fuente; María-Carmen Martínez

추천

검색

질문

자료유형: 학술저널

저자정보: Susana Boso (The Biological Mission of Galicia (CSIC)) Pilar Gago (The Biological Mission of Galicia (CSIC)) José-Luis Santiago (The Biological Mission of Galicia (CSIC)) María de la Fuente (The Biological Mission of Galicia (CSIC)) María-Carmen Martínez (The Biological Mission of Galicia (CSIC))

저널정보: 한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal 제35권 제2호

발행연도: 2019.4

수록면: 125 - 136 (12page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Vitis vinifera is very susceptible to downy mildew (Plasmopara viticola). A number of authors have suggested different genetic populations of this fungus exist in Europe, each showing a different degree of virulence. Work performed to date indicates this diversity to be the result of different factors. In areas where gene flow is greater and recombination more frequent, the diversity of P. viticola appears to be wider. In vineyards isolated by geographic barriers, a race may become dominant and produce clonal epidemics driven by asexual reproduction. The aim of the present work was to identify the conditions that influence the genetic diversity of P. viticola populations in the vineyards of northwestern Spain, where the climatic conditions for the growth of this fungus are very good. Vineyards situated in a closed, narrow valley of the interior, in more open valleys, and on the coast were sampled and the populations of P. viticola detected were differentiated at the molecular level through the examination of microsatellite markers. The populations of P. viticola represented in primary and secondary infections were investigated in the same way. The concentration of airborne sporangia in the vegetative cycle was also examined, as was the virulence of the different P. viticola populations detected. The epidemiological characteristics of the fungus differed depending on the degree of isolation of the vineyard, the airborne spore concentration, and on whether the attack was primary or secondary. Strong isolation was associated with the appearance of dominant fungal races and, therefore, reduced populational diversity.

#genotypic diversity #geographical barriers #grapevine #Plasmopara viticola #virulence

참고문헌 (0)

참고문헌 신청

참고문헌이 DBpia에서 서비스 중이라면, [참고문헌 신청]을 통해 등록해보세요

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!