The possession of cpDNA of Rhododendron ripense Makino in evergreen azalea cultivars

Kobayashi, Nobuo; Nakatsuka, Akira; Kurashige, Y.; Scariot, Valentina; Caser, Matteo; Demasi, Sonia; Riek, Jan De; Keyser, Ellen De; Huylenbroeck, Johan Van

doi:10.17660/actahortic.2021.1331.8

Cited by 1 publication

(1 citation statement)

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“…Studies evaluating the genetic diversity of R. ripense have been conducted using cpDNA analysis (Kobayashi et al, 2008) and microsatellite marker analysis (Kobayashi et al, 2017;Kondo et al, 2009). However, the genetic relationships between R. ripense and other wild species, as well as the genetic diversity among different provenances, remain unclear.…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity of Rhododendron ripense Makino and Development of Related Cultivars Based on Microsatellite Analysis

Ohta,

Sugai,

Nakatsuka

et al. 2024

Hortic J

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In Japan, wild evergreen azalea species with high ornamental value, such as Rhododendron ripense, grow naturally, and numerous cultivars have been developed based on these species. In this study, we utilized microsatellite markers to examine the genetic relationships among wild evergreen azalea species in Japan, particularly focusing on R. ripense, as well as assessing the genetic diversity of R. ripense. STRUCTURE analysis revealed that when K = 2, R. ripense appeared to be distinct from other species. However, when K = 4, the R. ripense population exhibited two separate clusters. Further analysis at K = 10 revealed genetic diversity within the R. ripense population, which was divided into five clusters reflecting their respective geographic distributions. Analysis of cultivars related to R. ripense based on the results of wild species suggested that most of the Ryūkyū-tsutsuji (R. × mucronatum) cultivars originated from the Yamakuni River in the northern Kyushu region or the San'in region of R. ripense.

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Section: Introductionmentioning

confidence: 99%