31 Works

Genomic evidence for speciation with gene flow in broadcast spawning marine invertebrates

Shotaro Hirase
How early stages of speciation in free-spawning marine invertebrates proceeds is poorly understood. The Western Pacific abalones, Hatiois discus, H. madaka, and H. gigantea occur in sympatry with shared breeding season and are capable of producing viable F1 hybrids in spite of being ecologically differentiated. Population genomic analyses revealed that although the three species are genetically distinct, there is evidence for historical and ongoing gene flow among these species. Evidence from demographic modeling suggests that...

Emergence of kinship structures and descent systems: multi-level evolutionary simulation and empirical data analyses

Kenji Itao & Kunihiko Kaneko
In clan societies, people are categorised into several cultural groups, so-called clans, within which they believe to share common ancestors. Clan attributions provide certain rules for marriage and descent. Anthropologists have revealed several kinship structures and their corresponding cultural characteristics, following such rules. We previously introduced an agent-based model of kinship structures. Here, we propose a simplified model in which competing societies evolve. The societies themselves comprise multiple evolving families with parameters for cultural traits...

Hydraulic architecture with high-fraction of root resistance

Haruhiko Taneda & Takefumi Ikeda
The hydraulic architecture of plants constrains water transport and carbon gain through stomatal limitation to CO2 absorption. Leaf, stem, and root organs are composed of plant hydraulic architecture, of which the root is the main bottleneck of water transport for a wide range of plant species. The present study aimed to assess the ecophysiological mechanism and importance of the high fraction of root hydraulic resistance. Biomass partitioning and hydraulic conductance of leaves, stems and roots...

Hayabusa2 Thermal Infrared Imager (TIR) Bundle

Tatsuaki Okada, Satoshi Tanaka, Tetsuya Fukuhara, Takehiko Arai, Takeshi Imamura, Yoshiko Ogawa, Kohei Kitazato, Toru Kouyama, Naoya Sakatani, Yuri Shimaki, Tomohiko Sekiguchi, Hiroki Senshu, Jun Takita, Makoto Taguchi, Hirohide Demura, Ryosuke Nakamura, Sunao Hasegawa, Tsuneo Matsunaga, Takehiko Wada, Jörn Helbert, Thomas G. Müller, Axel Hagermann, Jens Biele, Matthias Grott, Maximilian Hamm … & Marco Delbo
This PDS4 bundle collects all the operational data products produced by the Hayabusa2 TIR instrument.

Data from: Quantitative evaluation of posture control in rats with inferior olive lesions

Tetsuro Funato, Yota Sato, Yamato Sato, Soichiro Fujiki, Shinya Aoi, Kazuo Tsuchiya & Dai Yanagihara
Impairment of inferior olivary neurons (IONs) affects whole-body movements and results in abnormal gait and posture. Because IONs are activated by unpredicted motion rather than regular body movements, the postural dysfunction caused by ION lesions is expected to involve factors other than simple loss of feedback control. In this study, we measured the postural movements of rats with pharmacological ION lesions (IO rats) trained to stand on their hindlimbs. The coordination of body segments, as...

Data set: Reproductive character displacement in genital morphology in Ohomopterus ground beetles

Taira Nishimura, Nobuaki Nagata, Karen Terada, Tian Xia, Kouhei Kubota, Teiji Sota & Yasuoki Takami
Genital morphology reveals rapid diversification among species, and species-specific divergence in genital morphology may result in reproductive isolation and promote speciation. Natural selection against maladaptive hybridization may cause species-specific genital divergence. In this context, divergence in mating traits is expected to be greater between sympatric populations than between allopatric populations in a pair of species, known as reproductive character displacement (RCD). However, there are few examples of RCD in the genital morphology of closely related...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of Tokyo
  • Kyoto University
  • National Institute for Environmental Studies
  • Kyoto Prefectural University
  • Tokyo Metropolitan University
  • National Institute of Advanced Industrial Science and Technology
  • Gifu University
  • Hokkaido University
  • Chuo University
  • Kobe University