Occurrence pattern of viral infection on Pear in Korea and genetic characterization of apple scar skin viroid isolates

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Title
Occurrence pattern of viral infection on Pear in Korea and genetic characterization of apple scar skin viroid isolates
Author(s)
N Y Kim; H J Lee; N K Kim; J Oh; S H Lee; H Kim; Jae Sun Moon; R D Jeong
Bibliographic Citation
Horticultural Science & Technology, vol. 37, no. 6, pp. 767-778
Publication Year
2019
Abstract
Apple chlorotic leaf spot virus (ACLSV), apple stem pitting virus (ASPV), apple stem grooving virus (ASGV), and apple scar skin viroid (ASSVd) are economically important viruses infecting pear trees worldwide. A large-scale survey was carried out in five major pear producing area sof Korea in 2017 and 2018 to investigate the occurrence patterns of these viruses in pear leaves and fruit. The virus incidence rate was 13.8% for ACLSV, 31.7% for ASPV, 95.3% for ASGV, and 3.6% for ASSVd. Fruit samples were 2.8% for ACLSV, 28.4% for ASPV, 99.0% for ASGV, and 13.8% for ASSVd. The most common type of mixed infection was ASGV+ASPV (22%). Furthermore, the ASSVd genome was completely sequenced and showed 99% sequence identity at a nucleotide level to other isolates.
Keyword
Apple chlorotic leaf spot virusApple stem grooving virusIncidenceSurveyApple stem pitting virus
ISSN
1226-8763
Publisher
Korea Soc-Assoc-Inst
DOI
http://dx.doi.org/10.7235/HORT.20190076
Type
Article
Appears in Collections:
Division of Research on National Challenges > Plant Systems Engineering Research > 1. Journal Articles
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