8 Works

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...

Data from: Climate oscillation during the Quaternary associated with landscape heterogeneity promoted allopatric lineage divergence of a temperate tree Kalopanax septemlobus (Araliaceae) in East Asia

Shota Sakaguchi, Ying-Xiong Qiu, Yi-Hui Liu, Xin-Shuai Qi, Sea-Hyun Kim, Jingyu Han, Yayoi Takeuchi, James R. P. Worth, Michimasa Yamasaki, Shogo Sakurai & Yuji Isagi
We investigated the biogeographic history of Kalopanax septemlobus, one of the most widespread temperate tree species in East Asia, using a combined phylogeographic and palaeodistribution modelling approach. Range-wide genetic differentiation at nuclear microsatellites (G′ST = 0.709; 2205 samples genotyped at five loci) and chloroplast DNA (GST = 0.697; 576 samples sequenced for 2055 bp at three fragments) was high. A major phylogeographic break in Central China corresponded with those of other temperate species and the...

Data from: Genomic reconstruction of 100 000-year grassland history in a forested country: population dynamics of specialist forbs

Yuichi Yamaura, Ayu Narita, Yoshinobu Kusumoto, Atsushi J. Nagano, Ayumi Tezuka, Toru Okamoto, Hikaru Takahara, Futoshi Nakamura, Yuji Isagi & David Lindenmayer
Grassland ecosystems worldwide have been extensively converted to other land uses and are globally imperiled. Because many grasslands have been maintained by human activities, understanding their origin and history is fundamentally important to better contemporary management. However, existing methods to reconstruct past vegetation can produce contrasting views on grassland history. Here, we inferred demographic histories of 40 populations of four grassland forb species throughout Japan using high-resolution genome sequences and model-flexible demographic simulation based on...

Data from: DNA barcoding reveals a largely unknown fauna of Gracillariidae leaf-mining moths in the Neotropics

D. C. Lees, A. Y. Kawahara, R. Rougerie, I. Ohshima, A. Kawakita, O. Bouteleux, J. De Prins & C. Lopez-Vaamonde
Higher taxa often show increasing species richness towards tropical low latitudes, a pattern known as the latitudinal biodiversity gradient (LBG). A rare reverse LBG (with greater richness towards temperate high latitudes) is exhibited by Gracillariidae leaf-mining moths, in which most described species occur in northern temperate areas. We carried out the first assessment of gracillariid species diversity in two Neotropical regions to test whether the relatively low tropical species diversity of this family is genuine...

Data from: A molecular phylogeny and revised higher-level classification for the leaf-mining moth family Gracillariidae and its implications for larval host-use evolution

Akito Y. Kawahara, David Plotkin, Issei Ohshima, Carlos Lopez-Vaamonde, Peter R. Houlihan, Jesse W. Breinholt, Atsushi Kawakita, Lei Xiao, Jerome C. Regier, Donald R. Davis, Tosio Kumata, Jay-Cheon Sohn, Jurate De Prins, Charles Mitter & JAE-CHEON SOHN
Gracillariidae are one of the most diverse families of internally feeding insects, and many species are economically important. Study of this family has been hampered by lack of a robust and comprehensive phylogeny. In the present paper, we sequenced up to 22 genes in 96 gracillariid species, representing all previously recognized subfamilies and genus groups, plus 20 outgroups representing other families and superfamilies. Following objective identification and removal of two rogue taxa, two datasets were...

Data from: Optimal management strategy of insecticide resistance under various insect life histories: heterogeneous timing of selection and inter-patch dispersal

Masaaki Sudo, Daisuke Takahashi, David A. Andow, Yoshito Suzuki & Takahiko Yamanaka
Although theoretical studies have shown that the mixture strategy, which uses multiple toxins simultaneously, can effectively delay the evolution of insecticide resistance, whether it is the optimal management under different insect life histories and insecticide types remains unknown. To test the robustness of the management strategy over the life histories, we developed a series of simulation models which cover almost all the diploid insect types and have the same basic structure describing pest population dynamics...

Data from: Comparative genomic and transcriptomic analyses reveal the hemibiotrophic stage shift of Colletotrichum fungi

Pamela Gan, Kyoko Ikeda, Hiroki Irieda, Mari Narusaka, Richard J. O'Connell, Yoshihiro Narusaka, Yoshitaka Takano, Yasuyuki Kubo & Ken Shirasu
Hemibiotrophic fungal plant pathogens represent a group of agronomically significant disease-causing agents that grow first on living tissue and then cause host death in later, necrotrophic growth. Among these, Colletotrichum spp. are devastating pathogens of many crops. Identifying expanded classes of genes in the genomes of phytopathogenic Colletotrichum, especially those associated with specific stages of hemibiotrophy, can provide insights on how these pathogens infect a large number of hosts. The genomes of C. orbiculare, which...

Data from: Phylogeny of gracillariid leaf-mining moths: evolution of larval behaviour inferred from phylogenomic and Sanger data

Xuankun Li, Ryan St Laurent, Chandra Earl, Camiel Doorenweerd, Erik Van Nieukerken, Don Davis, Atsushi Kawakita, Shigeki Kobayashi, Andreas Zwick, Carlos Lopez-Vaamonde, Issei Ohshima & Akito Kawahara
Gracillariidae is the most taxonomically diverse cosmopolitan leaf-mining moth family, consisting of nearly 2000 named species in 105 described genera, classified into eight extant subfamilies. The majority of gracillariid species are internal plant feeders as larvae, creating mines and galls in plant tissue. Despite their diversity and ecological adaptations, their phylogenetic relationships, especially at the subfamily level, remain largely uncertain. Genomic data (83 taxa and 589 loci) were integrated with Sanger data (130 taxa and...

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Affiliations

  • Kyoto Prefectural University
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  • Kyoto University
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  • University of Florida
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  • Smithsonian Institution
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  • French National Institute for Agricultural Research
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  • Hokkaido University
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  • Royal Museum for Central Africa
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  • National Research Institute for Agriculture, Food and Environment
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