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Article
Decrease in peritoneal mast cell count in rats with adjuvant arthritis. I. Time course and interstrain difference
Adjuvant was injected into the left hind paw of Sprague-Dawley (SD) and Wistar rats. In SD rats a marked decrease in the mast-cell count and histamine content of the peritoneal fluid and a significant increase...
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Article
Morphological, physiological and molecular genetic characterization ofArabidopsis himalaica, with reference toA. thaliana
Arabidopsis himalaica (Edgeworth) O.E. Schulz, a poorly characterized species typical of HimalayanArabidopsis, was analyzed in terms of its morphology, physiology, chromosome number and m...
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Article
Molecular Taxonomic Study and Revision of the Three Japanese Species of Asplenium sect. Thamnopteris
sect. Thamnopteris or A. nidus L. complex is defined by the synapomorphic character peculiar to Aspleniaceae, an anastomosing vein near the margin of the simple lamina. Thus, it is easily recognizable and its mo...
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Article
Molecular Phylogeny of Eupatorieae (Asteraceae) Estimated from cpDNA RFLP and its Implication for the Polyploid Origin Hypothesis of the Tribe
(x=17 and 25), Ageratina (x=17) and Sclerolepis (x=15) with the higher chromosome base numbers, and the other includes Mikania (x=17) and the remaining genera with lower chromosome base numbers (x=10–11). Howeve...
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Article
Comparison of genetic diversity between narrowly endemic shrub Menziesia goyozanensis and its widespread congener M. pentandra (Ericaceae)
Menziesia goyozanensis, a Japanese kindof fool's huckleberry, is a shrub speciesendemic only to Mt. Goyo in northern Japan.This species is listed as `criticallyendangered' in the Red Data Book of wild plantsin J...
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Article
Morphological and molecular variation in Mitchella undulata, with special reference to the systematic treatment of the dwarf form from Yakushima
Morphological and molecular variation in Mitchella undulata Siebold et Zucc. was examined to evaluate the genetic basis for recognizing the dwarf variety, M. undulata var. minor Masamune. Considerable variation i...
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Article
Cospeciation of figs and fig-wasps: a case study of endemic species pairs in the Ogasawara Islands
The interactions between figs (Ficus, Moraceae) and fig-wasps (Agaonidae, Chalcidoidea, Hymenoptera) are special plant-pollinator relationships that are highly species-specific, in that each fig species is pollin...
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Article
Geographical distribution of two haplotypes of chloroplast DNA in four oak species (Quercus) in Japan
Chloroplast DNA polymorphism in four oak species (Quercus serrata, Q. mongolica var. crispula, Q. dentata and Q. aliena) was studied using collections from a total of 127 localities in Japan and South Korea on th...
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Article
The effects of spatial habitat structure on the evolution of density-dependent growth and reproduction in freshwater snails
We examined the growth and reproductive rates of freshwater snails, Physa acuta, in two habitat types. In the Asabata habitat, snails lived in isolated water pools, which occasionally joined to form a single larg...
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Article
Molecular identification of the mycorrhizal fungi of the epiparasitic plant Monotropastrum humile var. glaberrimum (Ericaceae)
Achlorophyllous monotropoid plants (Monotropoideae, Ericaceae) are epiparasites that obtain all of their carbon from their host plants via connections with mycorrhizal fungi. The mycorrhizal fungi of the epipa...
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Article
Open AccessMolecular phylogeny and evolution of alcohol dehydrogenase (Adh) genes in legumes
Nuclear genes determine the vast range of phenotypes that are responsible for the adaptive abilities of organisms in nature. Nevertheless, the evolutionary processes that generate the structures and functions ...
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Article
Characterization of TrcMADS1 gene of Trillium camtschatcense (Trilliaceae) reveals functional evolution of the SOC1/TM3-like gene family
Plant MADS-box genes encode transcriptional regulators that are critical for a number of developmental processes, such as the establishment of floral organ identity, flowering time, and fruit development. It a...
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Article
Spatiotemporal expression of duplicate AGAMOUS orthologues during floral development in Phalaenopsis
The AGAMOUS (AG) family of MADS-box genes plays important roles in controlling the development of the reproductive organs of flowering plants. To understand the molecular mechanisms behind the floral development ...
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Article
Leaf-shape variation of Paederia foetida in Japan: reexamination of the small, narrow leaf form from Miyajima Island
Variations in Paederia foetida L. leaf shape were examined to evaluate the taxonomic validity of the small, narrow leaf form of P. foetida f. microphylla Honda from Miyajima Island, Honshu, Japan. There is consid...
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Article
Evaluation of morphological and molecular variation in Plantago asiatica var. densiuscula, with special reference to the systematic treatment of Plantago asiatica var. yakusimensis
Morphological and molecular variations in Plantago asiatica L. var. densiuscula Pilg. were analyzed to evaluate the genetic basis for recognizing the dwarf variety P. asiatica var. yakusimensis (Masam.) Ohwi. Con...
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Article
The structure and expression of SEPALLATA-like genes in Asparagus species (Asparagaceae)
MADS-box genes encode transcriptional regulators that are critical for a number of developmental processes. In the MADS-box gene family, the SEPALLATA (SEP) gene subfamily plays an important role in controlling t...
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Article
Intraspecific variation of flower colour and its distribution within a sea lavender, Limonium wrightii (Plumbaginaceae), in the northwestern Pacific Islands
Differentiation of flower colour is thought to be one of the most important factors promoting plant speciation. We describe the intraspecific variation of flower colour and its distribution in Limonium wrightii. ...
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Article
Morphological and molecular (RAPD) analyses confirm the hybrid origin of the diploid grassCalamagrostis longiseta var.longe-aristata (Gramineae)
To examine the hybrid origin of the diploid grassCalamagrostis longiseta var.longe-aristata, we performed morphometric and genetic analyses of this taxon and its putative parental taxa. The morphometric analyses ...
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Article
Molecular Phylogeny and Genetic Divergence of the Introduced Populations of Japanese Guppies, Poecilia reticulata
A phylogenetic tree of guppies from seven introduced Japanese populations was constructed using a mitochondrial gene, and the relationship between these Japanese populations and indigenous South American popul...
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Article
Production and analysis of reciprocal hybrids between Asparagus officinalis L. and A. schoberioides Kunth
The genus Asparagus (Asparagaceae) encompasses 100–300 species, including the important vegetable crop, A. officinalis (garden asparagus). Previous attempts to hybridize garden asparagus with A. densiflorus (Kunt...
