Phenotypic and Genetic Characterization of Three Different Types of Dangyooza (Citrus grandis), Korean Landrace Citrus

• Published in: Weon'ye gwahag gi'sulji Vol. 39; no. 1; pp. 96 - 105
• Main Authors: Yi, Kyung Uk, Zhin, Kook Lhim, Oh, Eun Ui, Kim, Sang Suk, Kim, Ho Bang, Song, Kwan Jeong
• Format: Journal Article
• Language: English
• Published: 한국원예학회HST 01.01.2021; 한국원예학회
• Subjects: 농학; genetic resources; karyotype; morphology; RAPD; plastid DNA
• ISSN: 1226-8763; 2465-8588
• DOI: 10.7235/HORT.20210009

Dangyooza (DY), a Korean landrace citrus similar to pomelo (Citrus grandis L. Osbeck), has beenconsumed as a fruit and used in folk remedies to treat colds for centuries, and it is still used as agarden tree. DY has two natural variants, the buk-daengyooza (BDY) and the seol-daengyooza(SDY) based on distinguishable phenotypic fruit characteristics. However, there is little scientificanalysis available not only on the morphological and chemical properties but also on the geneticbasis of these natural variants. To gain a better understanding of DY, several morphological,phytochemical, chromosomal, and genetic traits were analyzed in DY and its natural variants, BDYand SDY. Morphological characteristics such as leaf and fruit shape, fruit hardness, and peelthickness were used to discriminate SDY from DY and BDY. Notably, SDY produced smaller fruitwith thinner peels than those of DY and BDY. The major flavanones occurring in citrus were alsomarkedly higher in SDY than those of DY and BDY. However, chromosomal configuration andgenetic diversity analysis using random amplified polymorphic DNA, simple sequence repeat, andplastid trnL/F barcoding markers were unable to clearly discriminate the phylogenetic relationshipsamong the DY types. This suggests that SDY might have arisen from somatic mutation, perhaps asa nucellar seedling. KCI Citation Count: 4