NOTES ON CYRTANDRA (GESNERIACEAE) FROM JAPAN, TAIWAN AND BATAN ISLAND (PHILIPPINES)

2019 ◽  
Vol 76 (3) ◽  
pp. 333-344
Author(s):  
K. Nishii ◽  
G. Kokubugata ◽  
M. Möller ◽  
H. J. Atkins
Keyword(s):  
Ryukyu Islands ◽  
The Ryukyu Islands ◽  
Molecular Phylogenetic

As part of ongoing molecular phylogenetic work on the large Gesneriaceae genus Cyrtandra, new insights into the taxonomy and relationships of the Cyrtandra of Japan, Taiwan and Batan Island in the northern Philippines have emerged. Cyrtandra umbellifera is confirmed as a species with a distribution that includes both Taiwan and Batan Island. Cyrtandra yaeyamae is found to be distinct from the widespread C. cumingii, with a distribution that includes both the Ryukyu Islands in Japan and Batan Island.

scholarly journals Sedum formosanum subsp. miyakojimense (Crassulaceae), a new subspecies from Miyako-jima Island of the Ryukyu Islands, Japan

PhytoKeys ◽  
2020 ◽  
Vol 148 ◽  
pp. 51-70
Author(s):  
Takuro Ito ◽  
Chih-Chieh Yu ◽  
Masatsugu Yokota ◽  
Goro Kokubugata
Keyword(s):  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
The Other ◽  
Ryukyu Islands ◽  
Morphological Comparison ◽  
Molecular Analyses ◽  
New Subspecies ◽  
The Ryukyu Islands ◽  
Molecular Phylogenetic ◽  
Axillary Branches

We re-examined the taxonomic status of plants treated as Sedum formosanum (Crassulaceae) from Miyako-jima Island of the Ryukyu Islands, Japan, using morphological comparison and molecular phylogenetic analyses with related species. In morphology, plants from Miyako-jima Island bore a close resemblance to the other plants of S. formosanum, but differed in being perennial, polycarpic, and having lateral axillary branches. Molecular analyses based on ITS of nrDNA and six regions of cpDNA sequencing indicated that the Miyako-jima plants formed a distinct subclade. This subclade was part of a polytomy with three other subclades comprising nine taxa endemic to Taiwan and S. formosanum from other areas, including the type locality. Therefore, we propose and describe the Miyako-jima plants as a new subspecies, Sedum formosanum subsp. miyakojimense.

scholarly journals Morphological and molecular phylogenetic characteristics of dwarf Sus specimens from the Noguni shell middens in the Ryukyu Islands

2012 ◽  
Vol 120 (1) ◽  
pp. 39-50 ◽  
Author(s):  
RYOHEI TAKAHASHI ◽  
NAOTAKA ISHIGURO ◽  
AKIRA MATSUI ◽  
TOMOKO ANEZAKI ◽  
HITOMI HONGO
Keyword(s):  
Ryukyu Islands ◽  
Shell Middens ◽  
The Ryukyu Islands ◽  
Molecular Phylogenetic

scholarly journals Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa

PhytoKeys ◽  
2019 ◽  
Vol 127 ◽  
pp. 121-150 ◽  
Author(s):  
Qiu-Jie Zhou ◽  
Jin-Hong Dai ◽  
Che-Wei Lin ◽  
Tetsuo Denda ◽  
Ren-Chao Zhou ◽  
...  
Keyword(s):  
New Species ◽  
Leaf Surface ◽  
Phylogenetic Analyses ◽  
Mainland China ◽  
Morphological Evidence ◽  
Ryukyu Islands ◽  
Diagnostic Features ◽  
The Ryukyu Islands ◽  
Molecular Phylogenetic ◽  
A New Species

Bredia (Melastomataceae) is an Asian genus that extends from central and southern mainland China to Taiwan and the Ryukyu islands. Molecular phylogenetic analyses reveal that the type of Bredia is nested in a clade of 20 species, while Tashiroea, a genus previously synonymized in Bredia, falls in another distantly related clade of 10 species. Our morphological survey shows that the two clades can be distinguished by several diagnostic features including leaf indumentum, texture, leaf surface sculpture under SEM, presence/absence of yellowish uniseriate trichomes, and capsule morphology. Based on molecular and morphological evidence, Bredia is recircumscribed and Tashiroea is resurrected. Description and a list of species are provided for the two genera with the description of a new species, T.villosa.

Monthly Water Exchange through the Ryukyu Islands Revealed by Salinity Structural Changes

2013 ◽  
Vol 864-867 ◽  
pp. 2335-2339
Author(s):  
Ya Pan Liu ◽  
Jian Cheng Kang ◽  
Jiong Zhu ◽  
Qin Chen Han
Keyword(s):  
Structural Changes ◽  
Water Exchange ◽  
High Salinity ◽  
World Ocean ◽  
Core Layer ◽  
Ryukyu Islands ◽  
High Salinity Water ◽  
The Ryukyu Islands ◽  
Salinity Water ◽  
World Ocean Atlas

Using salinity database of World Ocean Atlas 2009 (WOA09) issued by NOAA in 2010, refer the range of high-salinity tongue to indicate the strength about high-salinity water, from the perspective of structural changes of salinity; the water exchange through Ryukyu Islands upper 500 m have been analyzed, the results show that: due to Ryukyu Trough, currents on both sides of Ryukyu Islands occur exchange, for upper 500 m, high-salinity water in east of the Ryukyu Islands mainly invade the west waterthe Kuroshio in East China Sea; the intrusion strength is powerful from the depth of 100 m to 200 m, and the 150 m layer is the core layer of high-salinity water intrusion; the high-salinity water at the east of Ryukyu Islands invades the Kuroshio are stronger in March, May, June, September, October and November, are weaker in April and December.

The comparative yields of two types of leucaena (Peruvian v. Hawaiian) grown for forage production in Ryukyu Islands

1986 ◽  
Vol 106 (3) ◽  
pp. 623-624 ◽  
Author(s):  
Y. Kitamura
Keyword(s):  
Leucaena Leucocephala ◽  
Ryukyu Islands ◽  
Forage Production ◽  
High Quality ◽  
The Ryukyu Islands

Leucaena leucocephala (Lam.) de Wit, a leguminous shrub, has come into use as a fodder plant for animals in the Ryukyu Islands as it provides highly palatable, high quality feed (Kitamura, 1985). It is superior to other feeds available in this regard (Higashiohmine, Aramoto & Yamashiro, 1971; Isa et al. 1982).

Carbon and Oxygen Isotope Records of Tridacna squamosa Shells from two Different Latitudes in the Ryukyu Islands

2021 ◽  
Vol 25 (2) ◽  
Author(s):  
Satoshi Kodama ◽  
Hideko Takayanagi ◽  
Kosuke Yoshii ◽  
Thuy Thi Nhu Ha ◽  
Ryuji Asami ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Ryukyu Islands ◽  
Carbon And Oxygen Isotope ◽  
The Ryukyu Islands ◽  
Tridacna Squamosa

A taxonomic review of the genus Physopelta (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan, with a new record of Ph. parviceps from China

Zootaxa ◽  
2021 ◽  
Vol 4951 (3) ◽  
pp. 461-491
Author(s):  
JUN SOUMA ◽  
TADASHI ISHIKAWA
Keyword(s):  
New Species ◽  
New Record ◽  
Guangdong Province ◽  
Zhejiang Province ◽  
Ryukyu Islands ◽  
Taxonomic Review ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
Central Taiwan ◽  
First Time

In this paper, we revised the physopeltine genus Physopelta Amyot & Serville, 1843 (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan. Five species were recognized and diagnosed, including two new species, Ph. (Neophysopelta) lutaspidata sp. nov. from northern and central Taiwan and Ph. (N.) fusciscutellata sp. nov. from the Ryukyu Islands, Japan and Taiwan, and three known species, Ph. (N.) gutta gutta (Burmeister, 1834), Ph. (N.) parviceps Blöte, 1931, and Ph. (N.) quadriguttata Bergroth, 1894. Physopelta (Neophysopelta) fusciscutellata sp. nov., was previously regarded as either of the two species, Ph. (N.) cincticollis Stål, 1863 and Ph. (N.) parviceps, for populations from Taiwan. Previous records of Ph. (N.) cincticollis from Japan proper and Korea, and Ph. (N.) slanbuschii (Fabricius, 1787) from the Ryukyu Islands were considered as misidentifications of Ph. parviceps. A key to facilitate the identification of the five species known in Japan, Korea, and Taiwan is provided. Additionally, Ph. (N.) parviceps is recorded from China (Guangdong Province and Zhejiang Province) for the first time. 

Long-chain n-3 polyunsaturated fatty acids contained in liver and muscle tissues of Okinawan long-spine porcupinefish (Diodon holocanthus Linnaeus 1758)

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yutaka Tashiro
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Ryukyu Islands ◽  
Okinawa Island ◽  
Content Type ◽  
Muscle Tissues ◽  
The Ryukyu Islands ◽  
Total Fatty Acids ◽  
Long Chain

Purpose This study aimed to analyze the lipid content and fatty acid composition in the liver and muscle of a porcupinefish species inhabiting waters around the Ryukyu Islands to investigate their potential as a source of long-chain n-3 polyunsaturated fatty acids (LC-PUFAs). Design/methodology/approach Porcupinefish were collected along the Okinawa Island coast. The composition of fatty acids and cholesterol in both liver and muscle were analyzed using a gas chromatograph mass spectrometer. Findings The liver of Okinawan long-spine porcupinefish was rich in lipids whose content correlated to the proportion of liver/body weight. Fatty acid compositions in their liver and muscles were similar to each other. LC-PUFAs occupied 44% of total fatty acids, with docosahexaenoic acid (DHA) being the dominant (42%), whereas eicosapentaenoic acid occupied 2.4%. The liver contained 1,690 mg of cholesterol and 14.8 g of DHA per 100 g, whose proportion decreased in summer compared to other seasons (p = 0.036). Originality/value The liver of Okinawan long-spine porcupinefish, which has not yet been commercially used although its non-toxicity is claimed, can be an excellent source of LC-PUFAs, especially DHA, accentuating its potential in food supplements’ production.

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