45 Works

Data from: Sexual conflict over mating in Gnatocerus cornutus? Females prefer lovers not fighters

Kensuke Okada, Masako Katsuki, Manmohan D. Sharma, Clarissa M. House & David J. Hosken
Female mate choice and male–male competition are the typical mechanisms of sexual selection. However, these two mechanisms do not always favour the same males. Furthermore, it has recently become clear that female choice can sometimes benefit males that reduce female fitness. So whether male–male competition and female choice favour the same or different males, and whether or not females benefit from mate choice, remain open questions. In the horned beetle, Gnatocerus cornutus, males have enlarged...

Data from: Enhancement of optical force acting on vesicles via the binding of gold nanoparticles

Yumeki Tani & Takashi Kaneta
Here we found that gold nanoparticles (AuNPs) enhance the optical force acting on vesicles prepared from phospholipids via hydrophobic and electrostatic interactions. A laser beam was introduced into a cuvette filled with a suspension of vesicles and it accelerated them in its propagation direction via a scattering force. The addition of the AuNPs exponentially increased the velocity of the vesicles as their concentration increased, but polystyrene particles had no significant impact on velocity in the...

Data from: Costs of walking: differences in egg size and starvation resistance of females between strains of the red flour beetle (Tribolium castaneum) artificially selected for walking ability

Kentarou Matsumura & Takahisa Miyatake
In many animals, movement often affects fitness components such as foraging or migration. On the other hand, individuals with higher mobility also often have fitness costs. This trade-off between movement and other traits may explain the maintenance of variation in moving ability in a population. However, few studies have focused on movement by walking, although many previous studies of insects have investigated the evolution of variations in mobility with wing polymorphism. In the present study,...

Data from: A hypervariable mitochondrial protein coding sequence associated with geographical origin in a cosmopolitan bloom-forming alga, Heterosigma akashiwo

Aiko Higashi, Satoshi Nagai, Sergio Seone & Shoko Ueki
Geographic distributions of phytoplankton species can be defined by events on both evolutionary time and shorter scales, e.g., recent climate changes. Additionally, modern industrial activity, including the transport of live fish and spat for aquaculture and aquatic microorganisms in ship ballast water, may aid the spread of phytoplankton. Obtaining a reliable marker is key to gaining insight into the phylogeographic history of a species. Here, we report a hypervariable mitochondrial gene in the cosmopolitan bloom-forming...

Genetic variation and phenotypic plasticity in circadian rhythms of an armed beetle, Gnatocerus cornutus (Tenebrionidae)

Kentarou Matsumura, Masato Abe, Manmohan Sharma, David Hosken, Yoshii Taishi & Takahisa Miyatake
Circadian rhythms, their free-running periods and strength of the rhythm are often used as indicators of biological clocks, and there is evidence that the free-running periods of circadian rhythm are not affected by environmental factors like temperature. However, there are few studies of environmental effects on the power of rhythms and it is not clear if temperature compensation is universal. Additionally, genetic variation and phenotypic plasticity in biological clocks are important for understanding the evolution...

Venus Climate Orbiter Akatsuki UVI Calibrated Data PDS3 dataset

Shin-ya Murakami, Manabu Yamada, Atsushi Yamazaki, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the UVI instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The UVI CDRs are considered Level 3 or Composite Data (equivalent to NASA Level 1B). The CDRs are reconstructed from Level 2 or Edited Data. This dataset consists entirely of FITS files. Calibrated...

Venus Climate Orbiter Akatsuki UVI Raw Data PDS3 dataset

Shin-ya Murakami, Manabu Yamada, Atsushi Yamazaki, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the UVI instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The UVI EDRs are considered Level 2 or Edited Data (equivalent to NASA Level 1A). The EDRs are reconstructed from Level 1 or Raw Data. This dataset consists entirely of FITS files. Uncalibrated...

Venus Climate Orbiter Akatsuki LIR Calibrated Data PDS3 dataset

Shin-ya Murakami, Toru Kouyama, Tetsuya Fukuhara, Makoto Taguchi, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the LIR instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The LIR CDRs are considered Level 3 or Composite Data (equivalent to NASA Level 1B). The CDRs are reconstructed from Level 2 or Edited Data. This dataset consists entirely of FITS files. Calibrated...

Venus Climate Orbiter Akatsuki IR2 Calibrated Data PDS3 dataset

Shin-ya Murakami, Takehiko Satoh, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the IR2 instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The IR2 CDRs are considered Level 3 or Composite Data (equivalent to NASA Level 1B). The CDRs are reconstructed from Level 2 or Edited Data. This dataset consists entirely of FITS files. Calibrated...

Pinopsin evolved as the ancestral dim-light visual opsin in vertebrates

Keita Sato, Takahiro Yamashita, Keiichi Kojima, Kazumi Sakai, Yuki Matsutani, Masataka Yanagawa, Yumiko Yamano, Akimori Wada, Naoyuki Iwabe, Hideyo Ohuchi & Yoshinori Shichida
Pinopsin is the opsin most closely related to vertebrate visual pigments on the phylogenetic tree. This opsin has been discovered among many vertebrates, except mammals and teleosts, and was thought to exclusively function in their brain for extraocular photoreception. Here, we show the possibility that pinopsin also contributes to scotopic vision in some vertebrate species. Pinopsin is distributed in the retina of non-teleost fishes and frogs, especially in their rod photoreceptor cells, in addition to...

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...

Data from: Inbreeding depression at the sapling stage and its genetic consequences in a population of the outcrossing dominant tree species, Castanopsis sieboldii

Atsushi Nakanishi, Hiroshi Yoshimaru, Nobuhiro Tomaru, Masahiro Miura, Tohru Manabe & Shin-Ichi Yamamoto
Highly frequent pollination at short distances combined with spatial genetic structure (SGS) among reproductive individuals, as observed in populations of many forest tree species, may lead to highly frequent pollinations between genetically related individuals located close to each other. This could increase frequencies of biparental inbreeding and strengthen the degree of SGS across generations. However, the degree of SGS observed in forest tree populations is not usually strong, suggesting that such processes are restricted by...

Data from: Multiple capacitors for natural genetic variation in Drosophila melanogaster

Kazuo H. Takahashi
Cryptic genetic variation (CGV) or a standing genetic variation that is not ordinarily expressed as a phenotype is released when the robustness of organisms is impaired under environmental or genetic perturbations. Evolutionary capacitors modulate the amount of genetic variation exposed to natural selection and hidden cryptically; they have a fundamental effect on the evolvability of traits on evolutionary timescales. In this study, I have demonstrated the effects of multiple genomic regions of Drosophila melanogaster on...

Venus Climate Orbiter Akatsuki RS Bending Angle and Temperature/Pressure Profiles PDS3 dataset

Shin-ya Murakami, Hiroki Ando, Takeshi Imamura, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by radio science experiment using Ultra-Stable Oscillator (USO) onboard the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The RS OCCs bending angle and temperature/pressure profiles are considered Level 5 or Derived Data. Bending angle profiles are derived from Level 3, and temperature/pressure profiles are derived from...

Venus Climate Orbiter Akatsuki SPICE Kernel Archive Bundle

Shin-ya Murakami, Yukio Yamamoto, Kevin McGouldrick, George L. Hashimoto & Naru Hirata
This bundle includes the complete set of Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) SPICE data files, i.e., kernel files, for the cruise, the sun orbiting, and the science phase(s) of the mission. The SPICE data files, which can be accessed using SPICE software, contain geometric and other ancillary information needed to recover the full value of the science instrument data. In particular SPICE kernels provide spacecraft and planetary ephemerides, instrument mounting...

Venus Climate Orbiter Akatsuki LIR Raw Data PDS3 dataset

Shin-ya Murakami, Toru Kouyama, Tetsuya Fukuhara, Makoto Taguchi, Manabu Yamada, Atsushi Yamazaki, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the LIR instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The LIR EDRs are considered Level 2 or Edited Data (equivalent to NASA Level 1A). The EDRs are reconstructed from Level 1 or Raw Data. This dataset consists entirely of FITS files. Uncalibrated...

Venus Climate Orbiter Akatsuki IR1 Raw Data PDS3 dataset

Shin-ya Murakami, Manabu Yamada, Atsushi Yamazaki, Shoko Ohtsuki, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the IR1 instrument onboard the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The IR1 EDRs are considered Level 2 or Edited Data (equivalent to NASA Level 1A). The EDRs are reconstructed from Level 1 or Raw Data. This dataset consists entirely of FITS files. Uncalibrated...

Venus Climate Orbiter Akatsuki UVI Geometry Information PDS3 dataset

Shin-ya Murakami, Manabu Yamada, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products of geometry information for purpose of reference, calculated by SPICE toolkit using SPICE kernels provided as VCO-V-SPICE-6-V1.0 dataset, associated with images acquired by the UVI instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The UVI SEDRs are considered Level 3 or Supplementary Experiment Data (equivalent...

Data from: Older males are not only attractive to but also aggressive toward females in Gnatocerus cornutus

Kensuke Okada, Masako Katsuki, Katsuya Kiyose & Yasukazu Okada
In theory, a male should change the allocation of fighting and mating efforts in relation to his age. Thus, the consequences of sexual selection may be complicated by changes in the male resource allocation due to aging. However, previous studies have focused on changes in female mate choice and male-male competition with aging separately, and the impact of aging on the relationship between mate choice and male competition is unknown. Here, we examined how male...

Verification of the accuracy of the recent 50 years of tree growth and long-term change in intrinsic water-use efficiency using xylem Δ14C and δ13C in trees in an aseasonal tropical rainforest

Tomoaki Ichie, Shuichi Igarashi, Ryo Yoshihara, Kanae Takayama, Tanaka Kenzo, Kaoru Niiyama, Nur Hajar Zamah Shari, Fujio Hyodo & Ichiro Tayasu
Growth analysis based on tree-ring chronology is difficult in trees in aseasonal tropical rain forests, because annual growth rings may be unclear or completely absent. Fortunately, tree growth history recorded in xylem tissue is capable of providing valuable information on the responses of trees and forests to past and present environmental changes, including global warming. We have developed a new technique for aseasonal tropical forest trees which derives their growth rates from xylem Δ14C, and...

Fourteen morphological traits of three Japanese species of Arisaema sect. Pistillata (Araceae)

Tetsuya Matsumoto
The Arisaema serratum group sensu stricto (Araceae) is a Japanese species complex characterized by a well-developed leaf rachis and long pseudostem. They were previously integrated into one species due to wide infraspecific variation, but were split into about 13 species again in recent monographs. In this group, A. maekawae and A. pseudoangustatum var. pseudoangustatum were recently divided from A. angustatum in the type localities (central Japan). A recent study found some sympatric populations of the...

Raw data for sexually selected traits and life history traits of major and minor males in the horned flour beetle Gnatocerus cornutus

Kensuke Okada
1. Expression of weapons and weapon sizes are remarkably affected by environmental factors in armed insects, resulting in remarkable morphological difference in larger and smaller males i.e., male dimorphism 2. The phenotypic plasticity is one example of alternative mating phenotypes. Selection on the alternative phenotype generates different suites of multiple traits between larger and smaller males such as morphology, behaviors and life history. The different subsets of traits can contribute to reproductive success of larger...

Data from: Patterns of pollen flow in a dense population of the insect-pollinated canopy tree species Castanopsis sieboldii

Atsushi Nakanishi, Hiroshi Yoshimaru, Nobuhiro Tomaru, Masahiro Miura, Tohru Manabe & Shin-Ichi Yamamoto
Insect pollinations of tree species with high-density populations have rarely been studied. Since the density of adults can affect effective pollen dispersal, short-distance pollination, even by insects, may frequently occur in high-density populations. To test this prediction, we investigated pollination patterns in a high-density population of the insect-pollinated canopy tree species Castanopsis sieboldii by paternity analysis using genotypes at 8 microsatellite loci of 145 adult trees and 439 seeds from 11 seed parents in a...

Data from: Artificial selection on walking distance suggests a mobility-sperm competitiveness trade-off

Kentarou Matsumura, C. Ruth Archer, David J. Hosken & Takahisa Miyatake
Securing matings is a key determinant of fitness and in many species males are the sex that engages in mate searching. Searching for mates is often associated with increased mobility. This elevated investment in movement is predicted to trade-off with sperm competitiveness, but few studies have directly tested whether this trade-off occurs. Here, we assessed whether artificial selection on mobility affected sperm competitiveness and mating behavior, and if increased mobility was due to increased leg...

Venus Climate Orbiter Akatsuki RS Doppler Profiles PDS3 dataset

Shin-ya Murakami, Hiroki Ando, Takeshi Imamura, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by radio science experiment using Ultra-Stable Oscillator (USO) onboard the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. This RS OCCs Doppler data are considered Level 3 or Composite Data and are derived from Level 2. In the VCO RS level definition, this dataset is called Level...

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