30 Works

Data from: Direct and indirect effect of cannibalism and intraguild predation in the two sibling Harmonia ladybird beetles

Naoya Osawa & Arash Rasekh
In this study, we focused on the direct (i.e. predation) and indirect (i.e. potential threat from coexisting with a larger individual) effects of cannibalism and intraguild predation (IGP) during larval stages of two sibling ladybird beetles. These effects play an important role in the coexistence of the generalist–common Harmonia axyridis and specialist–rare H. yedoensis (Coleoptera: Coccinellidae). Direct predation effect of cannibalism and IGP were asymmetric in the two sibling ladybird beetles; the fourth instar larvae...

Genetic structures across a biogeographical barrier reflect dispersal potential of four Southeast Asian mangrove plant species

Alison Wee, Annika Noreen, Junya Ono, Koji Takayama, Prakash Kumar, Hugh Tan, Mohd Saleh, Tadashi Kajita, Edward Webb, Alison K. S. Wee, Annika M. E. Noreen, Prakash P. Kumar, Hugh T. W. Tan, Mohd N. Saleh & Edward L. Webb
Aim Biogeographic barriers restrict the movement of individuals, resulting in population divergence, genetic differentiation, endemism and speciation. Yet, some barriers demonstrate unequal effect across species depending on species dispersal, which manifests in varying genetic structure. We test the hypotheses that the genetic structure of four coastal mangrove species would reflect differences in dispersal potential across the Malay Peninsula, a major biogeographic barrier in the Indo-West Pacific region. Location Twelve sites from the east and west...

Data from: Dinoflagellates with relic endosymbiont nuclei as models for elucidating organellogenesis

Yuji Inagaki, Chihiro Sarai, Goro Tanifuji, Takuro Nakayama, Ryoma Kamikawa, Tazuya Takahashi, Hideaki Miyashita, Ken-Ichiro Ishida, Mitsunori Iwataki, Euki Yazaki & Eriko Matsuo
Nucleomorphs are relic endosymbiont nuclei so far found only in two algal groups, cryptophytes and chlorarachniophytes, which have been studied to model the evolutionary process of integrating an endosymbiont alga into a host-governed plastid (organellogenesis). However, past studies suggested that DNA transfer from the endosymbiont to host nuclei had already ceased in both cryptophytes and chlorarachniophytes, implying that the organellogenesis at the genetic level has been completed in the two systems. Moreover, we have yet...

Data from: Characterization of rhizome transcriptome and identification of a rhizomatous ER body in the clonal plant Cardamine leucantha

Kiwako S. Araki, Atsushi J. Nagano, Ryohei Thomas Nakano, Tatsuya Kitazume, Katsushi Yamaguchi, Ikuko Hara-Nishimura, Shuji Shigenobu & Hiroshi Kudoh
The rhizome is a plant organ that develops from a shoot apical meristem but penetrates into belowground environments. To characterize the gene expression profile of rhizomes, we compared the rhizome transcriptome with those of the leaves, shoots and roots of a rhizomatous Brassicaceae plant, Cardamine leucantha. Overall, rhizome transcriptomes were characterized by the absence of genes that show rhizome-specific expression and expression profiles intermediate between those of shoots and roots. Our results suggest that both...

Breastfeeding dynamically changes endogenous oxytocin levels and emotion recognition in mothers

Michiko Matsunaga, Takefumi Kikusui, Kazutaka Mogi, Miho Nagasawa, Rumi Ooyama & Masako Myowa
Breastfeeding behaviors can significantly change mothers’ physiological and psychological states. The hormone oxytocin may mediate breastfeeding and mothers’ emotion recognition. This study examined the effects of endogenous oxytocin fluctuation via breastfeeding on emotion recognition in 51 primiparous mothers. Saliva oxytocin was assessed before and after the manipulation (breastfeeding or holding an infant), and emotion recognition tasks were conducted. Among mothers who breastfed daily, mothers with more increased levels of oxytocin after breastfeeding showed greater reduced...

Environmentally triggered variability in the genetic variance-covariance of herbivory resistance of an exotic plant Solidago altissima

Yuzu Sakata, Shunsuke Utsumi, Timothy Craig, Joanne Itami & Takayuki Ohgushi
The variability in the genetic variance-covariance (G-matrix) in plant resistance and its role in the evolution of invasive plants have been long overlooked. We conducted an additional analysis of the data of a reciprocal transplant experiment with tall goldenrod, Solidago altissima, in multiple garden sites within its native range (USA) and introduced range (Japan). We explored the differences in G-matrix of resistance to two types of foliar herbivores: (1) a lace bug that is native...

Data from: An intermediate type of medusa from the early Cambrian Kuanchuanpu Formation, South China

Xing Wang, Jean Vannier, Xiaoguang Yang, Shin Kubota, Qiang Ou, Xiaoyong Yao, Kentaro Uesugi, Osamu Sasaki, Tsuyoshi Komiya & Jian Han
The tetraradial or pentaradial fossil embryos and related hatched individuals from the early Cambrian Kuanchuanpu Formation are of great interest for understanding the early evolution of medusozoans. The phylogenetic and evolutionary significance of their external and internal characters (e.g. manubrium, tentacles, septa and claustra) is still controversial. Here we describe a new pentamerous medusozoan, Hanagyroia orientalis gen. et sp. nov., characterized by five well-developed perradial oral lips around a remarkably large manubrium, a conspicuous equatorial...

Adiponectin stimulates exosome release to enhance mesenchymal stem cell driven therapy of heart failure in mice

Yuto Nakamura, Shunbun Kita, Yoshimitsu Tanaka, Shiro Fukuda, Yoshinari Obata, Tomonori Okita, Hiroyuki Nishida, Yuki Takahashi, Yuusuke Kawachi, Yuri Tsugawa-Shimizu, Yuya Fujishima, Hitoshi Nishizawa, Yoshinobu Takakura, Shigeru Miyagawa, Yoshiki Sawa, Norikazu Maeda & Iichiro Shimomura
Mesenchymal stem/stromal cells (MSCs) are cultured adult stem cells originally reside in virtually all tissues and the gain of MSCs by transplantation has become the leading form of cell therapy in various diseases. However, there is limited knowledge on the alteration of its efficacy by factors in recipients. Here we report that the cardioprotective properties of intravenously injected MSCs in a mouse model of pressure-overload heart failure largely depend on circulating adiponectin, an adipocyte secreted...

Data from: Secondary contact and genomic admixture between rhesus and long-tailed macaques in the Indochina Peninsula

Tsuyoshi Ito, Sreetharan Kanthaswamy, Srichan Bunlungsup, Robert Oldt, Paul Houghton, Yuzuru Hamada & Suchinda Malaivijitnond
Understanding the process and consequences of hybridization is one of the major challenges in evolutionary biology. A growing body of literature has reported evidence of ancient hybridization events or natural hybrid zones in primates, including humans; however, we still have relatively limited knowledge about the pattern and history of admixture because there have been little studies that simultaneously achieved genome-scale analysis and a geographically extensive sampling of wild populations. Our study applied double-digest restriction site-associated...

Maternal gut microbiota in pregnancy dictates offspring metabolic phenotype

Ikuo Kimura, Junki Miyamoto, Ryuji Ohue-Kitano, Keita Watanabe, Takahiro Yamada, Masayoshi Onuki, Ryo Aoki, Yosuke Isobe, Daiji Kashihara, Daisuke Inoue, Akihiko Inaba, Yuta Takamura, Satsuki Taira, Shunsuke Kumaki, Masaki Watanabe, Masato Ito, Fumiyuki Nakagawa, Junichiro Irie, Hiroki Kakuta, Masakazu Shinohara, Ken Iwatsuki, Gozoh Tsujimoto, Hiroaki Ohno, Makoto Arita, Hiroshi Ito … & Koji Hase
Antibiotics and dietary habits can affect the gut microbial community, influencing disease susceptibility. Although the influence of microbiota on the postnatal environment has been well documented, much less is known regarding the impact of gut microbiota at the embryonic stage. Here, we show that maternal microbiota shapes the metabolic system of offspring. During pregnancy, short-chain fatty acids produced by the maternal microbiota dictate the differentiation of neural, intestinal, and pancreatic cells through embryonic GPR41 and...

Common power laws for cities and spatial fractal structures

Tomoya Mori, Tony Smith & Wen-Tai Hsu
SI Datasets S1 for "Common power laws for cities and spatial fractal structures" i) cities.zip : This file includes six CSV files. For each country, there is a corresponding file containing the population sizes and location information of cities. In each file, there are four columns: city ID (UA), population size (POP), longitude (LON) and latitude (LAT) of the the most densely inhabited location in the city according to the geodetic reference system, WGS1984. ii)...

Data from: Ecosystem size predicts the probability of speciation in migratory freshwater fish

Yo Yamasaki, Hirohiko Takeshima, Yuichi Kano, Naoharu Oseko, Toshiyuki Suzuki, Mutsumi Nishida & Katsutoshi Watanabe
Predicting speciation is a fundamental goal of research in evolutionary ecology. The probability of speciation is often positively correlated with ecosystem size. Although the mechanisms driving this correlation are generally difficult to identify, a shared geographic and ecological context provides a suitable condition to study the mechanisms that promote speciation in large ecosystems by reducing the number of factors to be considered. Here, we determined the correlation between speciation and ecosystem size, and discussed the...

Data from: Carnivorous mammals from the middle Eocene Washakie Formation, Wyoming, USA, and their diversity trajectory in a post-warming world

Susumu Tomiya, Shawn Zack, Michelle Spaulding & John J. Flynn
The middle Eocene Washakie Formation of Wyoming, USA, provides a rare window, within a single depositional basin, into the faunal transition that followed the early Eocene warming events. Based on extensive examination, we report a minimum of 27 species of carnivorous mammals from this formation, more than doubling the previous taxic count. Included in this revised list are a new species of carnivoraform, Neovulpavus mccarrolli, and up to ten other possibly new taxa. Our cladistic...

Data from: Magnitude and direction of stream-forest community interactions change with time scale

Amy Marcarelli, Colden Baxter, Joseph Benjamin, Yo Miyake, Masashi Murakami, Kurt Fausch & Shigeru Nakano
Networks of direct and indirect biotic interactions underpin the complex dynamics and stability of ecological systems, yet experimental and theoretical studies often yield conflicting evidence regarding the direction (positive or negative) or magnitude of these interactions. We revisited pioneering datasets collected at the deciduous forested Horonai Stream and conducted ecosystem-level syntheses to demonstrate that the direction of direct and indirect interactions can change depending on the timescale of observation. Prior experimental studies showed that terrestrial...

A non‐steady state model based on dual nitrogen and oxygen isotopes to constrain moss nitrate uptake and reduction

Xue-Yan Liu, Di Wu, Xin Song, Yu-Ping Dong, Chong-Juan Chen, Wei Song, Cong-Qiang Liu & Keisuke Koba
Epilithic mosses are early colonizers of the terrestrial biosphere, constitute a special ecosystem regulating rock-atmosphere interactions, and may be more restricted in their nitrogen (N) supply than other mosses. Terrestrial mosses can take up nitrate (NO3-), a major form of bioavailable N, from soil substrates. However, the importance of substrate NO3- relative to atmospheric NO3- remains unclear in moss NO3- utilization. This has prevented the understanding of moss NO3- dynamics and its responses to environmental...

Data from: Oceanic thermal structure mediates dive sequences in a foraging seabird

Xavier Meyer, Andrew MacIntosh, André Chiaradia, Akiko Kato, Francisco Ramírez, Cedric Sueur & Yan Ropert-Coudert
1. Changes in marine ecosystems are easier to detect in upper-level predators, like seabirds, which integrate trophic interactions throughout the food web. 2. Here, we examined whether diving parameters and complexity in the temporal organisation of foraging sequences of little penguins (Eudyptula minor) are influenced by sea surface temperature (SST), water stratification and wind speed – three oceanographic features influencing prey abundance and distribution in the water column. 3. Using fractal time series analysis, we...

Host-plant choices determined by reproductive interference between closely related butterflies

Naota Ohsaki, Masaaki Ohata, Yoshibumi Sato & Mark D. Rausher
A number of empirical studies have concluded that reproductive interference, RI, contributes to parapatric species distributions or sexual exclusion. However, the possibility that divergent host-plant use in phytophagous insects is due to sexual exclusion has seldom been considered. Here we present evidence that RI is responsible for different host-plant use by two Pierid butterfly species, Pieris napi and P. melete . When a novel host species was introduced about 50 years ago, two Pierid butterfly...

Data from: Patterns of intraspecific variation through ontogeny–a case study of the Cretaceous nautilid Eutrephoceras dekayi and modern Nautilus pompilius

Amane Tajika, Neil Landman, Naoki Morimoto, Kenji Ikuno & Tom Linn
The magnitude and ontogenetic patterns of intraspecific variation can provide important insights into the evolution and development of organisms. Understanding the intraspecific variation of organisms is a key to correctly pursuing studies in major fields of palaeontology. However, intraspecific variation has been largely overlooked in ectocochleate cephalopods, particularly nautilids. Furthermore, little is known regarding the evolutionary pattern. Here, we present morphological data for the Cretaceous nautilid Eutrephoceras dekayi (Morton, 1834) and the modern nautilid Nautilus...

Color scores, COI haplotypes and SNP data for Phelotrupes auratus individuals

Yoshifumi Araki & Teiji Sota
We studied the population genetic structure underlying the geographic variation in the structural color of the geotrupid dung beetle, Phelotrupes auratus, which exhibits metallic body colors of different reflectance wavelengths perceived as red, green, and indigo. These forms occur parapatrically in an area of Japan. The color variation was not related to variation in climatic factors. Using single-nucleotide polymorphisms (SNPs) from restriction-site associated DNA sequences, we discriminated five groups of populations (west/red, south/green, south/indigo, south/red,...

Data: Sexual selection increased offspring production via evolution of male and female traits

Daisuke Kyogoku & Teiji Sota
Phenotypic evolution driven by sexual selection can impact the fitness of individuals and thus population performance through multiple mechanisms, but it is unresolved how and when sexual selection affects offspring production by females.We examined the effects of sexual selection on offspring production by females using replicated experimental evolutionary lines of Callosobruchus chinensis that were kept under polygamy (with sexual selection) or monogamy (without sexual selection) for 21 generations. We found that polygamous-line pairs produced more...

Data from: Mapping molar shapes on signaling pathways

Wataru Morita, Naoki Morimoto & Jukka Jernvall
A major challenge in evolutionary developmental biology is to understand how genetic mutations underlie phenotypic changes. In principle, selective pressures on the phenotype screen the gene pool of the population. Teeth are an excellent model for understanding evolutionary changes in the genotype-phenotype relationship since they exist throughout vertebrates. Genetically modified mice (mutants) with abnormalities in teeth have been used to explore tooth development. The relationship between signaling pathways and molar shape, however, remains elusive due...

Fine-scale empirical data on niche divergence and homeolog expression patterns in an allopolyploid and its diploid progenitor species

Reiko Akiyama, Jainqiang Sun, Masaomi Hatakeyama, Heidi Lischer, Roman Briskine, Angela Hay, Xiangchao Gan, Miltos Tsiantis, Hiroshi Kudoh, Masahiro Kanaoka, Jun Sese, Kentaro Shimizu & Rie Shimizu-Inatsugi
Polyploidization is pervasive in plants, but little is known about the niche divergence of wild allopolyploids (species that harbor polyploid genomes originating from different diploid species) relative to their diploid progenitor species and the gene expression patterns that may underlie such ecological divergence. We conducted a fine-scale empirical study on habitat and gene expression of an allopolyploid and its diploid progenitors. We quantified soil properties and light availability of habitats of an allotetraploid Cardamine flexuosa...

Divergent strategies in faeces avoidance between two cercopithecoid primates

Cécile Sarabian, Barthélémy Ngoubangoye & Andrew MacIntosh
Parasites constitute a major selective pressure which has shaped animal behaviour through evolutionary time. One adaption to parasites consists of recognizing and avoiding substrates or cues that indicate their presence. Among substrates harbouring infectious agents, faeces are known to elicit avoidance behaviour in numerous animal species. However, the function and mechanisms of faeces avoidance in non-human primates has been largely overlooked by scientists. In this study, we used an experimental approach to investigate whether aversion...

Phosphorus allocation to and resorption from leaves regulate the residence time of phosphorus in aboveground forest biomass on Mount Kinabalu, Borneo

Yuki Tsujii, Shin-Ichiro Aiba & Kanehiro Kitayama
1. The residence time of phosphorus (P) in trees is a consequence of plant adaptation to P deficiency, with longer P residence time on soils with low P availability. P residence time has been studied at the leaf or canopy level but seldom at the whole-tree level. Whereas P residence time at the leaf or canopy level is largely determined by leaf longevity and the resorption of P before leaf abscission, P residence time at...

Targeting diamondback moth in greenhouses by attracting specific native parasitoids with herbivory-induced plant volatiles

Junji Takabayashi
We investigated whether recruitment of specific parasitoids using a specific blend of synthetic herbivory-induced plant volatiles (HIPVs) could be a novel method of pest control in greenhouses. In the Miyama rural area in Kyoto, Japan,diamondback moth (DBM) (Plutella xylostella) larvae are an important pest of cruciferous crops in greenhouses, and Cotesia vestalis, a larval parasitoid of DBM, are found in the surrounding areas. Dispensers of HIPVs that attracted C. vestalis and honey feeders were set...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Kyoto University
  • Tohoku University
  • Hokkaido University
  • Kyoto University of Advanced Science
  • Chiba University
  • University of the Ryukyus
  • United States Geological Survey
  • Osaka University
  • Colorado State University
  • Kobe University