Abstract
SummaryThe genetic relationships of 20 Rhododendron species in Taiwan was determined based on the sequence of the internal transcribed spacer (ITS) region of ribosomal DNA. Sequences of the complete ITS region including ITS1, 5.8S rDNA, and ITS2, were obtained by direct sequencing of polymerase chain reaction (PCR)-amplified fragments. Gaultheria itoana was used as an outgroup. Aligned sequences of ITS1 and ITS2 from the 21 taxa resulted in 493 characters. According to the dendrogram, six main clusters were classified among the 20 species of the genus Rhododendron in Taiwan. Rhododendron oldhamii, R. nakaharai, R. taiwanalpinum, R. simsii, R. lasiostylum, R. rubropilosum, R. breviperulatum, R. kanehirai, and R. noriakianum were grouped with R. longiperulatum in cluster I. Rhododendron lamprophyllum was grouped with R. ovatum in cluster II. Rhododendron pseudochrysanthum, R. morri, R. hyperythrum, and R. rubropunctatum were grouped with R. formosanum in cluster III. In addition, R. mariesii, R. ellipticum and R. kawakamii formed three independent clusters. In this study, the findings based on ITS sequences are in agreement with the systematics of Rhododendron.
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Claims 5
Claim · model-written summary
ITS sequences classified the twenty Taiwan Rhododendron species into six main clusters.
- Taxon
- Rhododendron
Rhododendrone0 - Outcome
- six main clusterse0
- Value
- sixe0
- Setting
- Taiwane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six main clusters were classified among the 20 species of the genus Rhododendron in Taiwan.”
Claim · model-written summary
Ten named Rhododendron species were grouped in cluster I.
- Taxon
- Rhododendron oldhamii
Rhododendron oldhamiie0 - Outcome
- grouped with R. longiperulatum in cluster Ie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhododendron oldhamii, R. nakaharai, R. taiwanalpinum, R. simsii, R. lasiostylum, R. rubropilosum, R. breviperulatum, R. kanehirai, and R. noriakianum were grouped with R. longiperulatum in cluster I.”
Claim · model-written summary
Rhododendron lamprophyllum grouped with R. ovatum in cluster II.
- Taxon
- Rhododendron lamprophyllumRhododendron lamprophyllume0
- Outcome
- grouped with R. ovatum in cluster IIe0
Verbatim
e0“Rhododendron lamprophyllum was grouped with R. ovatum in cluster II.”
Claim · model-written summary
Four named Rhododendron species grouped with R. formosanum in cluster III.
- Taxon
- Rhododendron pseudochrysanthum
Rhododendron pseudochrysanthume0 - Outcome
- grouped with R. formosanum in cluster IIIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhododendron pseudochrysanthum, R. morri, R. hyperythrum, and R. rubropunctatum were grouped with R. formosanum in cluster III.”
Claim · model-written summary
R. mariesii, R. ellipticum and R. kawakamii formed separate clusters.
- Taxon
- R. mariesii
Rhododendron mariesiie0 - Outcome
- three independent clusterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R. mariesii, R. ellipticum and R. kawakamii formed three independent clusters.”