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Aneuploidal population differentiation in Carex sociata Boott (Cyperaceae) of the Ryukyu Islands, Japan
Ch Chromosome numbers and configuration patterns were investigated at meiotic metaphase I in pollen mother cells of Carex sociata Boott, concluding that reproductive traits such as restricted gene flow and inbreeding resulted in aneuploid differentiation among populations in C. Sociata populations.
Karyomorphological studies on Habenaria, Orchidaceae, and allied genera from Japan.
- M. Yokota
Geohistorical and current environmental influences on floristic differentiation in the Ryukyu Archipelago, Japan
The distance decay of florism similarity and negative effect of area difference on floristic differentiation demonstrate that florist differentiation is better understood by incorporating both historical and current environmental factors.
Red List of Japanese Vascular Plants : Summary of Methods and Results
Molecular phylogeography reveals an antitropical distribution and local diversification of Solenogyne (Asteraceae) in the Ryukyu Archipelago of Japan and Australia
Phylogenetic network analyses suggested that the ancestral lineage of S. mikadoi first colonized the southernmost island in the archipelago and then dispersed northward, indicating the antitropical distribution and Australian origin of Solenogyne.
Cassytha pubescens and C. glabella (Lauraceae) are not disjunctly distributed between Australia and the Ryukyu Archipelago of Japan – evidence from morphological and molecular data
- G. Kokubugata, Koh Nakamura, +4 authors M. Yokota
- BiologyAustralian Systematic Botany
- 10 October 2012
Abstract. Morphological comparisons and molecular phylogenetic analyses were conducted to resolve taxonomic confusion in Cassytha glabella and C. pubescens, both of which were first described from…
Phylogeography of Ophiorrhiza japonica (Rubiaceae) in continental islands, the Ryukyu Archipelago, Japan
The statistical parsimony network suggests migration from Taiwan and northward range expansion in the Ryukyu Archipelago, although migration via a Pliocene landbridge is not totally rejected.
Extremely low genetic diversity of the northern limit populations of Nypa fruticans (Arecaceae) on Iriomote Island, Japan
This work examined the genetic variation based on 11 microsatellite markers from all 137 known ramets of N. fruticans on Iriomote Island in comparison with the more central population to indicate that the transfer of a new genotype from another location abroad can take place.
Foliar Flavonoids from Two Begonia Species in Japan
Flavonoid compounds in the leaves of two Japanese Begonia species, B. formosana and B. fenicis, were surveyed. The compounds were isolated by various chromatographic techniques and identified by UV…
Breakdown of distyly in a tetraploid variety of Ophiorrhiza japonica (Rubiaceae) and its phylogenetic analysis
- Koh Nakamura, T. Denda, Osamu Kameshima, M. Yokota
- Biology, MedicineJournal of Plant Research
- 25 May 2007
Both tetraploidization and the breakdown of distyly to homostyly in O. japonica var.