Author pages are created from data sourced from our academic publisher partnerships and public sources.
Share This Author
Amphibian chytridiomycosis in Japan: distribution, haplotypes and possible route of entry into Japan
A nested PCR assay is established that uses two pairs of PCR primers to amplify the internal transcribed spacer (ITS) region of a ribosomal RNA cassette to detect mild fungal infections from as little as 0.001 pg of B. dendrobatidis DNA. Expand
Invasion Status and Potential Ecological Impacts of an Invasive Alien Bumblebee, Bombus terrestris L. (Hymenoptera: Apidae) Naturalized in Southern Hokkaido, Japan
The numbers of B. terrestris captured or observed have increased rapidly during the eight years since the evidence of its naturalization was found, and it clearly has the potential to compete with native bumblebees for floral resources and nest sites. Expand
Pollination mode in fig wasps: the predictive power of correlated traits
- F. Kjellberg, E. Jousselin, J. Bronstein, A. Patel, J. Yokoyama, J. Rasplus
- Biology, Medicine
- Proceedings of the Royal Society of London…
- 7 June 2001
It is shown that mode of pollination can confidently be predicted from fig traits only (anther–to–ovule ratio) or from wasp trait only (presence of coxal combs), and that active pollination remains the predominant mode ofpollination in Ficus. Expand
Displacement of Japanese native bumblebees by the recently introduced Bombus terrestris (L.) (Hymenoptera: Apidae)
It is suggested that competition for nest sites rather than flower resources is the major ecological mechanism for displacement of native bees, which may cause local extinction of native bumblebees. Expand
Phylogeny and biogeography of the genus Lycium (Solanaceae): inferences from chloroplast DNA sequences.
To investigate phylogenetic and biogeographic relationships of the genus with emphasis on L. sandwicense, the coding region of matK, the two intergenic spacers trnT (UGU)-trnL (UAA) and trnF (GAA), and the trnL intron of chloroplast DNA (cpDNA) were sequenced. Expand
Expression of a DEFICIENS-like gene correlates with the differentiation between sepal and petal in the orchid, Habenaria radiata (Orchidaceae)
Results suggest that the distinctive expression of HrDEF plays a role in differentiation between sepal and petal in H. radiata. Expand
Geographical distribution of two haplotypes of chloroplast DNA in four oak species (Quercus) in Japan
- Munetake Kanno, J. Yokoyama, Y. Suyama, M. Ohyama, T. Itoh, Mitsuo Suzuki
- Biology, Medicine
- Journal of Plant Research
- 30 June 2004
Overall evidence suggests that the mutation from T- to C- type occurred in an individual of one of the four oak species and then was transferred to all the species by hybridization in eastern Japan, and that the Kanto District provided individuals with the C-type with a refugium during the last glacial maximum. Expand
Molecular phylogeny of Coriaria, with special emphasis on the disjunct distribution.
- J. Yokoyama, M. Suzuki, K. Iwatsuki, M. Hasebe
- Biology, Medicine
- Molecular phylogenetics and evolution
The phylogenetic tree shows that the Chile-Papua New Guinea-New Zealand-Pacific islands species and the Central America-northern South America species form a sister group, and the Eurasian clade is more basal to them. Expand
Characterization of TrcMADS1 gene of Trillium camtschatcense (Trilliaceae) reveals functional evolution of the SOC1/TM3-like gene family
The results suggest that duplicated copies of SOC1/TM3-like gene evolved to become variously functionally specialized. Expand
Phylogenetic relationships of Salix (Salicaceae) based on rbcL sequence data.
It is thought that the reduction of stamen number from more than two stamens to two might occur in at least three lineages and that fused bud scales evolved several times and/or the reverse evolution occurred from fused to free. Expand