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Kuo, W. H., S. H. Liu, C. Chang, C. Hsieh, Y. Li, T. Ito, H. Won, G.
Kokubugata & K. Chung, 2022. Plastome phylogenomics of Allaeanthus,
Broussonetia and Malaisia (Dorstenieae, Moraceae) and the origin of B. ×
kazinoki. Journal of Plant Research 135: 203–220.
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Iwata, H., T. Ito, G. Kokubugata & K. Takayama, 2022. The complete
chloroplast genome of a coastal plant, Euphorbia jolkinii
(Euphorbiaceae). Mitochondrial DNA B 7: 569–570.
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Yulianti, W., S. Katho, N. Sugita, G. Kokubugata, H. Kato & N.
Murakami, 2022. Microsatellite markers reveal genetic differentiation of
an invasive mulberry, Morus australis Poir. (Moraceae), among the island
groups in Japan and its introduction to the Ogasawara Islands. Acta
Phytotaxonomica et Geobotanica 73: 1–18.
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Kokubugata, G.*, K. Nakamura, Y. Hirayama & M. Yokota, 2022.
Inferring the migration of Lobelia sect. Hypsela (Campanulaceae) from
the Ryukyu Archipelago of Japan to mainland China using molecular data.
Bulletin of the National Museum of Nature and Science, Series B 48:
23–29.
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Yamada, T., G. Kokubugata, S. Fujii, C. Chen, A. Asakawa, T. Ito &
M. Maki, 2021. Refugia during the last glacial period and the origin of
the disjunct distribution of an insular plant. Journal of Biogeography:
48: 1460–1474.
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Kokubugata, G., Y. Hirayama & M. Yokota, 2021. Conformation of the
occurrence and phylogenetic backgrounds Portulaca okinawensis var.
amamiensis (Portulacaceae) in Uke and Yoro Islands of the Ryukyus
Archipelago. National Museum of Nature and Science, Series B 47: 60–65.
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鍾國芳・張瓊之・謝佳倫・國府方吾郎, 2020.
カジノキのDNAはオーストロネシア人の移住と和紙の起源の物語をどのように語っているのか？.
古文書研究 90: 21–32.
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Okuyama, Y., N. Goto, A. J. Nagano, M. Yasugi, G. Kokubugata, H. Kudoh,
Z. Qi, T. Ito, S. Kakishima & T. Sugawara, 2020. Radiation history
of Asian Asarum (sect. Heterotropa, Aristolochiaceae) resolved using a
phylogenomic approach based on double-digested RAD-seq data. Annals of
Botany 126: 245–260.
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Kokubugata, G.*, A. Ebihara, Y. Saito, M. Amano, A. Abe, K. Nakamura, A.
Naiki, T. Kajita & M. Yokota, 2020. New localities of seed plants
recorded from the subtropical Ryukyus of Japan at island level based on
herbarium data. Bulletin of the National Museum of Nature and Science,
Series B 46: 1–14.
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Ito, T., M. Goto, H. Nakano & G. Kokubugata, 2020. A new species of
succulent plants from the Muko-jima group of the Bonin Islands, Japan:
Sedum mukojimense (Crassulaceae). Phytotaxa 450 (2): 188–198.
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Ito, T., C.-C. Yu, M. Yokota & G. Kokubugata, 2020. Sedum formosanum
subsp. miyakojimense (Crassulaceae), a new subspecies from Miyako-jima
Island of the Ryukyu Islands, Japan: Phytokey: 148: 51–70.
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Atkins, H. J., L. C. G. Bramley, M. A. Johnson, A. Kartonegoro, K.
Nishii, G. Kokubugata, M. Möller & M. Hughes, 2020. A molecular
phylogeny of Southeast Asian Cyrtandra (Gesneriaceae) supports an
emerging paradigm for Malesian plant biogeography. Frontiers of
Biogeography 12 (1): e44814.
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Nishii, K., G. Kokubugata, M. Möller & H. J. Atkins, 2019. Notes on
Cyrtandra (Gesneriaceae) from Japan, Taiwan and Batan Island
(Philippines). Edinburgh Journal of Botany 76: 333-344.
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Tamura, S., M.-H. Kwak, G. Kokubugata, C.-H. Park, B.-Y. Lee, T. Fukuda,
E. Petrunenko, I. Koksheeva, E. Pimenova, P. Krestov, S. Bondarchuk,
J.-S. Ma, H.-C. Zhou, H. Tsuboi, Y. Nishikawa, T. Shimamurak, H. Fujita
& K. Nakamura, 2019. Two-way migration of Lychnis wilfordii caused
by the circular landform of Japan-Korea-northeast China-Russian Far East
region and its suggestion for conservation in northeast Asia. bioRxiv
https://doi.org/10.1101/857227.
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Kokubugata, G., T. Ito, Y. Hirayama, N. Murakami, M. L. Labuguen, A.
Lopez-Feliciano & M. Yokota, 2019. Three independent migrations of
Dodonaea viscosa (Sapindaceae) to Japan Archipelago revealed by
molecular data. Bulletin of the National Museum of Nature and Science,
Series B, 45: 137–145.
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Kokubugata, G., K. Nakamura, W. Kuo, Z. Qi, K. Chung, C. Fu, Y. Suzuki
& M. Yokota, 2019. Reappraisal of Tashiroea as a genus independent
of Bredia (Melastomataceae) based on molecular data. Phytotaxa 387 (1):
75-83.
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Kokubugata, G., Y. Suzuki and M. Yokota, 2019. Molecular evidence for
hybridization events involved in the origin of Ardisia walkeri
(Primulaceae) revealed by nuclear and chloroplast DNA sequence data.
Bulletin of the National Museum of Nature and Science, Series B 45 (1):
9–17.
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Ito, T., C.-C. Yu, & G. Kokubugata*, 2018. Reconsiderations of
distribution and taxonomic status of infraspecific taxa in Sedum
japonicum (Crassulaceae) based on morphological and molecular data.
Bulletin of the National Museum of Nature and Science, Series B 44 (2):
73–83.
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Ito, T., H. Nakanishi, Y. Chichibu, K. Minoda & G. Kokubugata, 2017.
Sedum danjoense (Crassulaceae), a new species of succulent plants from
the Danjo Islands in Japan. Phytotaxa 309 (1): 23–34.
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Ito, T., C.-C. Yu, K. Nakamura, K.-F. Chung, Q.-E. Yang, C.-X. Fu, Z.-C.
Qi & G. Kokubugata, 2017. Unique parallel radiations of
high-mountainous species of the genus Sedum (Crassulaceae) on the
continental island of Taiwan. Molecular Phylogenetics and Evolution 113:
9–22.
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Kokubugata, G. & M. Yokota, 2017. The chromosome numbers of four
Gesneriaceae species native to Japan. Bulletin of the National Museum of
Nature and Science, Series B 43: 57–61.
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Kokubugata, G., T. Ito & M. Yokota, 2016. Confirmation of the
occurrence of Portulaca okinawensis var. amamiensis (Portulacaceae) in
Kakeroma Island of the Ryukyu Archipelago, Japan. Bulletin of the
National Museum of Nature and Science, Series B, 42: 67–71.
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Abe, A., T. Nakasone & G. Kokubugata, 2016. Noteworthy collection
records of Lipocarpha microcephala (Cyperaceae) and Polygala chinensis
(Polygalaceae) from Kume Island of the Ryukyus, Japan. Bulletin of the
National Museum of Nature and Science, Series B, 42: 73–76.
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國府方吾郎, 2016. 東南アジア各国における植物園の事情とABS
に関する諸実情―第5回東南アジア植物園ネットワーク会議に参加して―.
日本植物園協会誌 51: 13–18.
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Umemoto, H., C.-H. Park, C.-X. Fu, T. Ito, M. Yokota, G. Kokubugata,
2016. Taxonomic reconsideration of Celtis biondii var. insularis in the
Miyako Island Group of the Ryukyus based on morphological and molecular
data. The Journal of Phytogeography and Taxonomy 63: 67-75.
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Kokubugata, G., H. Kato, D. Iamonico, H. Umemoto, T. Ito, K. Nakamura,
N. Murakami and M. Yokota, 2015. Taxonomic reexamination of Portulaca
boninensis (Portulacaceae) in the Bonin (Ogasawara) Islands of Japan
using molecular and morphological data. Phytotaxa 217: 279–287.
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Nakamura, K., T. Denda, G. Kokubugata, C.-J. Huang, C.-I Peng & M.
Yokota, 2014. Phylogeny and biogeography of the Viola iwagawae-tashiroi
species complex (Violaceae, section Plagiostigma) endemic to the Ryukyu
Archipelago, Japan. Plant Systematics and Evolution 300: 337-351.
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Ito, T, R. Chen, Q. Yang, Y. Saito, M. Yokota & G. Kokubugata, 2014.
Taxonomic reexamination of Sedum formosanum (Crassulaceae) in Japan,
Taiwan and the Philippines based on molecular data. Journal of
Phytogeography and Taxonomy 62: 1-9.
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Ito, T, K. Nakamura, C.-H. Park, G.-P. Song, A. Maeda, Y. Tanabe &
G. Kokubugata, 2014. Nuclear and plastid DNA data confirm that Sedum
tosaense (Crassulaceae) has a disjunct distribution between Pacific
mainland Japan and Jeju Island, Korea. Phytotaxa. 177: 221-230.
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Nakamura, K., G. Kokubugata, R. R. Rubite, C.-J. Huang, Y. Kono, H.-A.
Yang, A. Lopez-Feliciano, M. L. Labuguen, M. Yokota & C.-I Peng,
2014. In situ glacial survival in the northern limit of tropical insular
Asia by a lowland herb Begonia fenicis (Begoniaceae). Botanical Journal
of the Linnean Society (London) 174: 305-325.
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Nakamura, K., R. R. Rubite, G. Kokubugata, Y. Kono, M. Yokota & C.-I
Peng, 2013. Limonium wrightii (Plumbaginaceae) from Batanes, the
Philippines: a new generic record for Malesia. Phytotaxa 152: 56–58.
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Kokubugata, G., K. Nakamura, Y. Hirayama & M. Yokota, 2013.Taxonomic
reconsideration of Portulaca okinawensis (Portulacaceae) in the Ryukyus
Archipelago based on morphological and molecular data. Phytotaxa 117:
11-22.
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Kokubugata, G., Y. Saito, K. Nakamura, A. Lopez-Feliciano, M. L.
Labuguen & Y. Hirayama & M. Yokota, 2013. Migration of Lobelia
zeylanica (Campanulaceae) from Taiwan to the Ryukyu Archipelago Inferred
from Chloroplast DNA Data. Bulletin National Museum of Nature and
Science, Ser. B 39: 95-100.
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Kokubugata, G. & M. Yokota, 2012. Host specificity of Cassytha
filiformis and C. pergracilis (Lauraceae) in the Ryukyu Archipelago.
Bulletin National Museum of Nature and Science, Ser. B 38: 47-53.
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Kokubugata, G., K. Nakamura, P. I. Forster, G. W. Wilson, A. E. Holland,
Y. Hirayama & M. Yokota, 2012. Cassytha pubescens and C. glabella
(Lauraceae) are not disjunctly distributed between Australia and the
Ryukyu Archipelago of Japan - evidence from morphological and molecular
data. Australian Systematic Botany 25: 364-373.
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Kokubugata, G., K. Nakamura, P. I. Forster, Y. Hirayama & M. Yokota,
2012. Antitropical distribution of Lobelia species (Campanulaceae)
between the Ryukyu Archipelago of Japan and Oceania as indicated by
molecular data. Australian Journal of Botany 60: 417-428.
|
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Nakamura K, K.F. Chung, C.J. Huang, Y. Kono, G. Kokubugata & C.I
Peng, 2012. Extreme habitats that emerged in the Pleistocene triggered
divergence of weedy Youngia (Asteraceae) in Taiwan. Molecular
Phylogentics and Evolusion 63: 486-99.
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Kokubugata, G. & M. Yokota, 2012. Host specificity of Cassytha
filiformis and C. pergracilis (Lauraceae) in the Ryukyu Archipelago.
Bulletin National Museum of Nature and Science, Ser. B 38: 47-53.
|
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Nakamura, K., T. Denda, G. Kokubugata, P. I. Forster, G. W. Wilson, C.
Peng, M. Yokota, 2011. Molecular phylogeography reveals an antitropical
distribution and local diversification of Solenogyne (Asteraceae) in the
Ryukyu Archipelago of Japan and Australia. The Biological Journal of the
Linnean Society 105: 197-217.
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Kokubugata, G., T. Kurihara, Y. Hirayama & K. Obata, 2011. Molecular
evidence for a natural hybrid origin of Ajuga × mixta (Lamiaceae) using
ITS sequences. Bulletin National Museum of Nature and Science, Ser. B
37: 175-179.
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3Kokubugata, G., K. Nakamura, Y. Hirayama, C.-I Peng & M. Yokota,
2011. Taxonomic Reconsideration and Phylogeographic Implication for
Nertera yamashitae (Rubiaceae). Bulletin National Museum of Nature and
Science, Ser. B 37: 9-22.
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Maki, M., G. Kokubugata & T. Yamashiro, 2010. Lack of allozyme
diversity in populations of the endangered perennial Senecio scandens
(Asteraceae) in Japan: comparison with a population in Taiwan. The
Journal of phytogeography and taxonomy 58: 39-42.
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Kokubugata, G., M. Yokota & M. Kato, 2010. Note on the taxonomy,
biogeography and conservation of endangered plant spices in the Ryukyus.
Korean Journal of Plant Taxonomy 40: 193-201.
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Saito, Y., M. Yokota & G. Kokubugata, 2010. Comparison of ribosomal
DNA distribution patterns on somatic Chromosomes between Aster miyagii
and Erigeron thunbergii (Asteraceae). Bulletin National Museum of Nature
and Science, Ser. B 36: 13-20.
|
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Nakamura, K., T. Denda, G. Kokubugata, R. Suwa, T.Y. A. Yang C.-I Peng
& M. Yokota, 2010. Phylogeography of Ophiorrhiza japonica
(Rubiaceae) in continental islands, the Ryukyu Archipelago, Japan.
Journal of Biogeography 37: 1907-1918.
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Kokubugata, G, K. Nakamura, W. Shinohara, Y. Saito, C.-I Peng & M.
Yokota, 2010. Evidence of three parallel evolutions of leaf dwarfism and
phytogeography in Lysimachia sect. Nummularia in Japan and Taiwan.
Molecular Phylogenetics and Evolution 54: 657-663.
|
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Saito, Y., T. Iwashina, C.-I Peng, G. Kokubugata, 2009. Taxonomic
reconsideration of Disporum luzoniense (Liliaceae s.l.) using flavonoid
characters. Blumea 54: 59-62.
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中村剛, 國府方吾郎, 傳田哲郎, 横田昌嗣. 2008.
花冠裂片の変異に基づくヘツカリンドウの２品種. 植物地理・分類 56: 22-24.
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Kokubugata, G., Y. Saito, M. Ogawa & M. Yokota, 2008. Ribosomal DNA
distribution patterns on somatic chromosomes of diploid species in three
sections in Genus Aster (Asteraceae). Bulletin National Museum of Nature
and Science, Ser. B 34: 153-159.
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Möller, M., G. Kokubugata & K. Jong, 2008. Aspects of genome
evolution in Gesneriaceae: patterns of 45S-nrDNA site evolution based on
evidence from fluorescent in situ hybridization (FISH). International
Journal of Plant Sciences: 169: 667-676.
|
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Sangin, P., P. I. Forster, M. Mingmuang & Kokubugata, G. 2008. A
phylogeny for two cycad families (Stangeriaceae and Zamiaceae) based on
chloroplast DNA sequences. Bulletin National Museum of Nature and
Science, Ser. B 34: 75-82.
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Denduangboripant, J., Q. C. B. Cronk, G. Kokubugata & M. Moller.
2007. Variation and inheritance of nuclear ribosomal DNA clusters in
Streptocarpus (Gesneriaceae) and its biological and phylogenetic
implications. International Journal of Plant Sciences 168: 445-467.
|
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Saito, Y., G. Kokubugata & M. Möller, 2007. Molecular evidences for
a natural hybrid origin of Doellingeria × sekimotoi (Asteraceae) using
ITS and matK sequences. International Journal of Plant Sciences 168:
469-476.
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Kokubugata, G., D. A. Madulid & C.-I Peng, 2007. Note on Lysimachia
(Primulaceae) in the Philippines and Taiwan. Memoirs of National Science
Museum, Tokyo 45: 121-125.
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Kokubugata, G., P. D. Bostock & P. I. Forster, 2006. A cytotaxonomic
study of four species of Pellaea section Platyloma (J. Sm.) Hook. &
Baker (Adiantaceae) from Australia. Austrobaileya 7: 341-345.
|
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Nakamura K., S.-W. Chung, G. Kokubugata, T. Denda & M. Yokota, 2006.
Phylogenetic systematics of the monotypic genus Hayataella (Rubiaceae)
endemic to Taiwan. Journal of Plant Research 119: 657-661.
|
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Saito, Y., M. Möller, G. Kokubugata, T. Katsuyama, W. Marubashi & T.
Iwashina, 2006. Molecular evidence for repeated hybridization events
involved in the origin of the genus × Crepidiastrixeris (Asteraceae)
using RAPDs and ITS data. Botanical Journal of Linnean Society (London)
151: 333-343.
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Kokubugata, G., C.-I Peng, D. A. Madulid, 2006, Investigation on the
Chromosome Number of Lobelia nummularia (Campanulaceae) in Taiwan and
the Philippines. Annuls of Tsukuba Botanical Garden 25: 7-10.
|
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Saito, Y. & G. Kokubugata, 2006. Mapping 45S ribosomal DNA on
somatic chromosomes of two Disporum species (Liliaceae) in Japan. Annuls
of Tsukuba Botanical Garden 25: 11-16.
|
|
Kokubugata, G., C.-I Peng, Y. Saito, M. Yokota & S. Kobayashi, 2006.
Taxonomic Reconsideration of Lysimachia ardisioides (Primulaceae) from
Taiwan. Memoirs of National Science Museum, Tokyo 44: 135-140.
|
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Kokubugata G. & P. I. Forster, 2006. Molecular-cytotaxonomy of Cycas
(Cycadales) using 5S ribosomal DNA markers. National science Museum
Monographs 34: 163-170.
|
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Kokubugata, G. & Y. Saito, 2006. Phylogenetic and Biogeographic
Study of Crepidiastrum platyphyllum (Compositae) in the Coastal Area of
Sagami Sea, Japan. National science Museum Monographs 42: 59-66.
|
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Kokubugata, G., K. Kondo & I. V. Tatarenko, 2005. A list of
herbarium specimens collected from Russia in the expeditions of 2002,
2003 and 2005. Annuls of Tsukuba Botanical Garden 24: 71-98.
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Saito, Y., G. Kokubugata, K. Kondo, I. V. Tatarenko & P. V. Kulikov,
2005. Distribution patterns of 45S ribosomal DNA sites on somatic
chromosomes of three subspecies of Inula britannica (Asteraceae) in
Japan and Russia. Annuls of Tsukuba Botanical Garden 24: 63-69.
|
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Kokubugata, G., C.-I Peng & M. Yokota, 2004. Comparison of
karyotypes among three Heloniopsis species (Liliaceae) from Ryukyu
Archipelago and Taiwan. Annuls of Tsukuba Botanical Garden 23: 13-16.
|
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Saito, Y., G. Kokubugata & M. Möller, 2004. Evidence for the
correlation between rDNA variation and satellite heteromorphy in somatic
chromosome complements of Lobelia fulgens ‘Queen Victoria’ (Subfamily
Lobelioïdeae, Family Campanulaceae). Annuls of Tsukuba Botanical Garden
23: 5-12.
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Kokubugata, G., K. Kondo & S. Matsumoto, 2004. Different size of
total chromosome lengths in two diploid species of Artemisia
(Asteraceae) in Japan. Annuls of Tsukuba Botanical Garden 23: 1-4.
|
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Saito, Y, & G. Kokubugata, 2004. Comparison of karyotype and number
of 5S ribosomal DNA sites on somatic chromosomes in Aster × sekimotoi
and speculation of its parental species (Asteraceae) Chromosome Science
8: 103-107.
|
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Kokubugata, G. & C.-I Peng, 2004. Comparison of floral morphologies
in Conandron ramondioides (Gesneriaceae) from Japan and Taiwan.
Edinburgh Journal Botany 61: 21-31.
|
|
Kokubugata, G., A. P. Vovides & K. Kondo. 2004. Mapping 5S ribosomal
DNA on somatic chromosomes of four species of Ceratozamia and Stangeria
eriopus (Cycadales). Botanical Journal of Linnean Society (London) 145:
499-504.
|
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Kokubugata, G., K., Kondo, I. V. Tatarenko, P. V. Kulikov, V. P.
Verkholat, A. Gontcharov, H. Ogura, F. Tsuneo, Y. Hoshi & R. Suzuki.
2003. Diploid cytotypes in three species of Aster sensu lato
(Asteraceae) from Primorye Territory, Russia. Chromosome Science 7:
23-28.
|
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Saito, Y., G. Kokubugata, T. Katsuyama, W. Marubashi, T. Iwashina, 2003.
Cytological comparisons of somatic chromosomes in Crepidiastrixeris
denticulato-platyphylla and its estimated parent species (Asteraceae).
Chromosome Science 7: 43-48.
|
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Kokubugata, G., Hill & K. Kondo, 2002. Ribosomal DNA distribution in
somatic chromosomes of Stangeria eriopus (Stangeriaceae, Cycadales) and
molecular-cytotaxonomical relationships to the other cycad genera.
Brittonia 51: 1-4.
|
|
Kokubugata, G., K. Kondo, I. V. Tatarenko, P. V. Kulikov, M. S. Knyasev
& Z. N. Ryabinina, 2002. Cytological studies of 13 Asteraceae
species from Russia. Chromosome Science 6: 67-72.
|
|
Kokubugata, G., K. D. Hill & K. Kondo, 2002. Comparison of 5S
ribosomal DNA sites on somatic chromosomes of eight species in Cycas
(Cycadaceae). Chromosome Science 6: 41-46.
|
|
Kokubugata, G. & A. E. Holland, 2002. Chromosomal evolutions in six
species of Rutidosis (Asteraceae: Gnaphalieae) from southeastern
Queensland. Australian Journal of Botany 50: 237-240.
|
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Kokubugata, G., K. D. Hill & K. Kondo, 2002. Chromosomal characters
of two species of Cycas (Cycadaceae, Cycadales). Annuls of Tsukuba
Botanical Garden 21: 139-141.
|
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Kokubugata, G., 2002. Notes on species of Gesneriaceae common to both
the Ryukyus and Taiwan. Proc. Symposium on Collection Building and
Natural History Studies in Asia. National science Museum Monographs 22:
137-146.
|
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Kokubugata, G., K. D. Hill, G. W. Wilson, K. Kondo & L. M. Randall,
2001. A comparison of chromosome number and karyotype in somatic
chromosomes of Bowenia and Stangeria (Stangeriaceae, Cycadales).
Edinburgh Journal of Botany 58: 475-481.
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