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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 76 - 86 (11page)
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초록· 키워드
오류제보하기
Scab disease caused by Venturia nashicola is of agroeconomic importance in cultivation of Asian pear. However, little is known about the degree of genetic diversity in the populations of this pathogen. In this study, we collected 55 isolates from pear scab lesions in 13 major cultivation areas in Korea and examined the diversity using sequences of internal transcribed spacer (ITS) region, ${\beta}$-tubulin (TUB2), and translation elongation factor-$1{\alpha}$ ($TEF-1{\alpha}$) genes as molecular markers. Despite a low level of overall sequence variation, we found three distinctive subgroups from phylogenetic analysis of combined ITS, TUB2, and $TEF-1{\alpha}$ sequences. Among the three subgroups, subgroup 1 (60% of isolates collected) was predominant compared to subgroup 2 (23.6%) or subgroup 3 (16.4%) and was distributed throughout Korea. To understand the genetic diversity among the subgroups, RAPD analysis was performed. The isolates yielded highly diverse amplicon patterns and none of the defined subgroups within the dendrogram were supported by bootstrap values greater than 30%. Moreover, there is no significant correlation between the geographical distribution and the subgroups defined by molecular phylogeny. Our data suggest a low level of genetic diversification among the populations of V. nashicola in Korea.
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참고문헌 (31)
참고문헌 신청
Kim KH / 2009 / List of plant disease in Korea / The Korean Society of Plant Pathology
Ishii H / 2000 / Venturia nashicola, the causal fungus of Japanese and Chinese pears: a species distinct from V. pirina / Mycol Res 104:755~759
Kim KC / 2009 / Theory of diagnosis and control of pear disease / Jun Deign
Hyun Seok Koh / 2013 / Specific and Sensitive Detection of Venturia nashicola, the Scab Fungus of Asian Pears, by Nested PCR / The Plant Pathology Journal 29(4):357~363
Um JY / 1997 / Diagnosis and control of apple and pear disease / Gyeongbuk Print Co
Ishii H / 2000 / Venturia nashicola, the causal fungus of Japanese and Chinese pears: a species distinct from V. pirina / Mycol Res 104:755~759
Kim KC / 2009 / Theory of diagnosis and control of pear disease / Jun Deign
Hyun Seok Koh / 2013 / Specific and Sensitive Detection of Venturia nashicola, the Scab Fungus of Asian Pears, by Nested PCR / The Plant Pathology Journal 29(4):357~363
Um JY / 1997 / Diagnosis and control of apple and pear disease / Gyeongbuk Print Co
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