19 Works

Data from: Within species support for the expensive tissue hypothesis: a negative association between brain size and visceral fat storage in females of the Pacific seaweed pipefish

Masahito Tsuboi, Jun Shoji, Atsushi Sogabe, Ingrid Ahnesjö & Niclas Kolm
The brain is one of the most energetically expensive organs in the vertebrate body. Consequently, the high cost of brain development and maintenance is predicted to constrain adaptive brain size evolution (the expensive tissue hypothesis, ETH). Here, we test the ETH in a teleost fish with predominant female mating competition (reversed sex roles) and male pregnancy, the pacific seaweed pipefish Syngnathus schlegeli. The relative size of the brain and other energetically expensive organs (kidney, liver,...

Data from: The effect of sitagliptin on carotid artery atherosclerosis in Type 2 Diabetes: the PROLOGUE randomized controlled trial

Jun-Ichi Oyama, Koichi Node, Atsushi Tanaka, Toyoaki Murohara, Masafumi Kitakaze, Tomoko Ishizu, Yasunori Sato, Haruo Kamiya, Masaharu Ishihara, Koji Maemura, Hirofumi Tomiyama, Yukihito Higashi, Hirotsugu Yamada, Kentaro Yamashita, Yasuko K. Bando, Shinichiro Ueda & Teruo Inoue
Background: Experimental studies have suggested that dipeptidyl peptidase-4 (DPP-4) inhibitors provide cardiovascular protective effects. We performed a randomized study to evaluate the effects of sitagliptin added on to the conventional therapy compared with conventional therapy alone (diet, exercise, and/or drugs, except for incretin-related agents) on the intima-media thickness (IMT) of the carotid artery, a surrogate marker for the evaluation of atherosclerotic cardiovascular disease, in people with type 2 diabetes mellitus (T2DM). Methods and Findings: We...

Data from: Insecticide applications to soil contribute to development of Burkholderia mediating insecticide resistance in stinkbugs

Kanako Tago, Yoshitomo Kikuchi, Shinji Nakaoka, Chie Katsuyama, Masahito Hayatsu & Sinji Nakaoka
Some soil Burkholderia strains are capable of degrading the organophosphorus insecticide, fenitrothion, and establish symbiosis with stinkbugs, making the host insects fenitrothion-resistant. However, the ecology of the symbiotic degrading Burkholderia adapting to fenitrothion in the free-living environment is unknown. We hypothesized that fenitrothion applications affect the dynamics of fenitrothion-degrading Burkholderia, thereby controlling the transmission of symbiotic degrading Burkholderia from the soil to stinkbugs. We investigated changes in the density and diversity of culturable Burkholderia (i.e....

Data from: Hot spring frogs (Buergeria japonica) prefer cooler water to hot water

Shohei Komaki, Yoichi Sutoh, Kensuke Kobayashi, Shigeru Saito, Claire Saito, Takeshi Igawa & Quintin Lau
“Hot spring frog” is an informal name used for the Japanese stream tree frog (Buergeria japonica), which is widely distributed in Taiwan and the Ryukyu Archipelago in Japan. Some populations of the species are known to inhabit hot springs. However, water temperature can be extremely high around the sources of hot springs. Thus, it is questionable whether B. japonica selectively inhabits such dangerous environments. To address this question, we conducted a series of observations of...

Effect of a tailored multidimensional intervention on the care burden among family caregivers of stroke survivors: A randomised controlled trial

Mahmoud Ahmed Elsheikh, Michiko Moriyama, , Mayumi Kako, Ahmed Hashem El-Monshed, Mohamed Zoromba, Hamada Zehry, Maha Hazem Khalil, Abdel-Hady El-Gilany & Mostafa Amr
Introduction: Caring for stroke survivors at home creates high levels of care burden among family caregivers. As the nature of caregiving is multidimensional, previous initiatives at alleviating the care burden using a single approach have not been adequate. It was recommended that future studies focus on tailored interventions that address the needs of family caregivers and combine different approaches to relieve caregivers’ burden. However, there is a lack of literature regarding interventions that incorporate these...

mRNA editing analysis of Doryteuthis pealeii

Sofia Medina Ruiz, Caroline Albertin, Therese Mitros, Hannah Schmidbaur, Gustavo Sanchez, Z.Y. Wang, Jane Grimwood, Joshua Rosenthal, Clifton Ragsdale, Oleg Simakov & Daniel Rokhsar
Cephalopods are known for their large nervous systems, complex behaviors and morphological innovations. To investigate the genomic underpinnings of these features, we assembled the chromosomes of the Boston market squid Doryteuthis (Loligo) pealeii and the California two-spot octopus, Octopus bimaculoides, and compared them with those of the Hawaiian bobtail squid, Euprymna scolopes. The genomes of the soft-bodied (coleoid) cephalopods are highly rearranged relative to other extant molluscs, indicating an intense, early burst of genome restructuring....

Number of terrestrial leeches with human-bait method and environmental variables in peninsular Malaysia

Tetsuro Hosaka, Asrulsani Jambari, Miyabi Nakabayashi & Shinya Numata
This is the data on the number of terrestrial leeches (brown Haemadipsa sp.) collected and environmental variables at the sampling site in Endau Rompin National Park in Malaysia. We investigated relative abundance of terrestrial leeches repeatedly at 99 sampling points in the tourism area of ERNP from February 2019 to September 2020. We counted the number of leeches at each sampling point based on the human-bait method, wherein the researcher is considered as the bait...

Data from: Inbreeding ratio and genetic relationships among strains of the Western clawed frog, Xenopus tropicalis

Takeshi Igawa, Ai Watanabe, Atsushi Suzuki, Akihiko Kashiwagi, Keiko Kashiwagi, Anna Noble, Matt Guille, David E. Simpson, Marko E. Horb, Tamotsu Fujii & Masayuki Sumida
The Western clawed frog, Xenopus tropicalis, is a highly promising model amphibian, especially in developmental and physiological research, and as a tool for understanding disease. It was originally found in the West African rainforest belt, and was introduced to the research community in the 1990s. The major strains thus far known include the Nigerian and Ivory Coast strains. However, due to its short history as an experimental animal, the genetic relationship among the various strains...

Raw data for the samples collected from Hole B of the ICDP DSeis project at the Moab Khotsong Gold Mine in South Africa

Takeshi Miyamoto, Tetsuro Hirono, Yuki Yokoyama, Shunya Kaneki, Yuhji Yamamoto, Tsuyoshi Ishikawa, Akira Tsuchiyama, Ikuo Katayama, Yasuo Yabe, Martin Ziegler, Raymond Durrheim & Hiroshi Ogasawara
This data set is corresponding to the Miyamoto, T. et al. “Characteristics of Seismogenic Fault Rock Related to the 2014 Orkney Earthquake (M5.5) Beneath the Moab Khotsong Gold Mine, South Africa” Geophysical Research Letters, 2022. This data set shows physical property, magnetic susceptibility, mineral assemblage, and element composition of all Hole B subsamples, and frictional properties of 5 Hole B subsamples.

Data from: Nuclear and chloroplast DNA phylogeography reveals Pleistocene divergence and subsequent secondary contact of two genetic lineages of the tropical rainforest tree species Shorea leprosula (Dipterocarpaceae) in Southeast Asia

Masato Ohtani, Toshiaki Kondo, Naoki Tani, Saneyoshi Ueno, Soon-Leong Lee, Kevin Kit Siong Ng, Norwati Muhammad, Reiner Finkeldey, Mohamad Na'iem, Sapto Indrioko, Koichi Kamiya, Ko Harada, Bibian Diway, Eyen Khoo, Kensuke Kawamura, Yoshihiko Tsumura & Leong S. Lee
Tropical rainforests in Southeast Asia have been affected by climatic fluctuations during past glacial eras. To examine how the accompanying changes in land areas and temperature have affected the genetic properties of rainforest trees in the region, we investigated the phylogeographic patterns of a widespread dipterocarp species, Shorea leprosula. Two types of DNA markers were used: expressed sequence tag-based simple sequence repeats (EST-SSRs) and chloroplast DNA (cpDNA) sequence variations. Both sets of markers revealed clear...

Data from: Cross-cultural similarity in relationship-specific social touching

Juulia T. Suvilehto, Lauri Nummenmaa, Tokiko Harada, Robin I. M. Dunbar, Riitta Hari, Robert Turner, Norihiro Sadato & Ryo Kitada
Many species use touching for reinforcing social structures, and particularly non-human primates use social grooming for managing their social networks. However, it is still unclear how social touch contributes to maintenance and reinforcement of human social networks. Human studies in Western cultures suggest that the body locations where touch is allowed are associated with the strength of the emotional bond between the person touched and the toucher. However, it is unknown to what extent this...

Data from: Microsatellite marker development by multiplex Ion Torrent PGM sequencing: a case study of the endangered Odorrana narina complex of frogs

Takeshi Igawa, Masafumi Nozawa, Mai Nagaoka, Shohei Komaki, Shohei Oumi, Tamotsu Fujii & Masayuki Sumida
The endangered Ryukyu tip-nosed frog Odorrana narina and its related species, Odorrana amamiensis, Odorrana supranarina, and Odorrana utsunomiyaorum, belong to the family Ranidae and are endemically distributed in Okinawa (O. narina), Amami and Tokunoshima (O. amamiensis), and Ishigaki and Iriomote (O. supranarina and O. utsunomiyaorum) Islands. Because of varying distribution patterns, this species complex is an intrinsic model for speciation and adaptation. For effective conservation and molecular ecological studies, further genetic information is needed. For...

Sound velocities and P-V-T data of phase A obtained at GSECARS beamline 13-ID-D

Nao Cai, Xintong Qi, Ting Chen, Siheng Wang, Tony Yu, Yanbing Wang, Toru Inoue, Duojun Wang & Baosheng Li
The sound velocities and lattice parameters for sample in the under review paper, "Enhanced visibility of subduction slabs by the formation of dense hydrous phase A", submitted to the journal 'Geophysical Research Letters', are published. The high pressure and high-temperature experiment was conducted in the 1000-ton Kawai type large volume apparatus (T-25) installed at the GSECARS beamline 13-ID-D of Advanced Photon Source, Argonne National Laboratory. The datasets were obtained at conditions up to 11 GPa...

Data from: Rab6 is required for multiple apical transport pathways but not the basolateral transport pathway in Drosophila photoreceptors

Nozomi Iwanami, Yuri Nakamura, Takunori Satoh, Ziguang Liu & Akiko K. Satoh
Polarized membrane trafficking is essential for the construction and maintenance of multiple plasma membrane domains of cells. Highly polarized Drosophila photoreceptors are an excellent model for studying polarized transport. A single cross-section of Drosophila retina contains many photoreceptors with 3 clearly differentiated plasma membrane domains: a rhabdomere, stalk, and basolateral membrane. Genome-wide high-throughput ethyl methanesulfonate screening followed by precise immunohistochemical analysis identified a mutant with a rare phenotype characterized by a loss of 2 apical...

Data from: Population structure and landscape genetics of two endangered frog species of Genus Odorrana: different scenarios on two islands

Takeshi Igawa, Shohei Oumi, Seiki Katsuren & Masayuki Sumida
Isolation by distance and landscape connectivity are fundamental factors underlying speciation and evolution. To understand how landscapes affect gene flow and shape population structures, island species provide intrinsic study objects. We investigated the effects of landscapes on the population structure of the endangered frog species, Odorrana ishikawae and O. splendida, which each inhabit an island in southwest Japan. This was done by examining population structure, gene flow, and demographic history of each species by analyzing...

Data from: Nuclear internal transcribed spacer-1 as a sensitive genetic marker for environmental DNA studies in common carp Cyprinus carpio

Toshifumi Minamoto, Kimiko Uchii, Teruhiko Takahara, Takumi Kitayoshi, Tsuji Satsuki, Hiroki Yamanaka, Hideyuki Doi & Satsuki Tsuji
The recently developed environmental DNA (eDNA) analysis has been used to estimate the distribution of aquatic vertebrates by using mitochondrial DNA (mtDNA) as a genetic marker. However, mtDNA markers have certain drawbacks such as variable copy number and maternal inheritance. In this study, we investigated the potential of using nuclear DNA (ncDNA) as a more reliable genetic marker for eDNA analysis by using common carp (Cyprinus carpio). We measured the copy numbers of cytochrome b...

Genome complexity reduction and high throughput sequencing of green iguana (Iguana iguana) cause a paradigm shift in understanding sex chromosomal linkages on homomorphic X and Y sex chromosomes

Tassika Koomgun, Nararat Laopichienpong, Worapong Singchat, Thitipong Panthum, Rattanin Phatcharakullawarawat, Ekaphan Kraichak, Siwapech Sillapaprayoon, Syed Farhan Ahmad, Narongrit Muangmai, Surin Peyachoknagul, Prateep Duengkae, Tariq Ezaz & Kornsorn Srikulnath
Most lizards in the Superfamily Iguanoidea have an XX/XY sex determination system in which sex chromosomal linkage has homology with chicken (Gallus gallus) chromosome 15 (GGA15); however, sex chromosome genomics remains largely unexplored due to the presence of homomorphic sex chromosomes in many species. Recent advances in high-throughput sequencing with genome complexity reduction now provide an effective approach to identify sex-specific loci in both single nucleotide polymorphisms (SNPs) and restriction fragment presence/absence (PA), and a...

Flashing spots on the dorsal trunk of hardyhead silverside fish

Masakazu Iwasaka
A large number of living creatures are able to use ambient light effectively in biological signaling. Atherinomorus lacunosus, a teleost fish has alignments of circular spots on its dorsal trunk. The spot consists of iridophores, whose diameters are approximately 7–10 µm. The iridophore contains guanine crystals with diameters of 1–3 µm. Here it is found that more than one spot with a diameter of approximately 0.1 mm causes a rhythmic flashing of light when viewed...

Integrative taxonomy of two thrush complexes (Aves: Turdidae) reveals introgression across sister species

Boyang An, Danyang Yin, Songlin Huang, Tariq Ahmad & Bo Li
The classification of some Turdus species, such as the Naumann’s and dusky thrush complexes and the red-throated and black-throated thrush complexes, is controversial. Herein, we used molecular data and morphological characters to review the taxonomy of these thrush complexes and analyze the genetic differentiation between them. Herein, we examined the genetic characteristics of 13 microsatellite loci in all individuals and total of 129 alleles were detected. In parallel, we have a further judgment on their...

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