Article
Plant Sciences
Hajime Ikeda
Summary: Mountain regions play an important role in supporting biodiversity, especially in East Asia. The high mountains of the Japanese archipelago harbor alpine and arctic-alpine plant populations, which have persisted through climate changes in the Pleistocene. Phylogeographic studies reveal complex range dynamics of these plants and their genetic relationships with northern regions, indicating possible ecological divergence.
JOURNAL OF PLANT RESEARCH
(2022)
Article
Biodiversity Conservation
Menglin Wang, Simon Hellemans, Ales Bucek, Taisuke Kanao, Jigyasa Arora, Crystal Clitheroe, Jean-Jacques Rafanomezantsoa, Brian L. Fisher, Rudolf Scheffrahn, David Sillam-Dusses, Yves Roisin, Jan Sobotnik, Thomas Bourguignon
Summary: Madagascar, due to its isolation, is home to unique plant and animal species, including various lineages of termites. This study used mitochondrial genomes to explore the historical biogeography of Neoisoptera, a termite lineage. The results suggest that Neoisoptera colonized Madagascar between 7 and 10 times independently during the Miocene, similar to its colonization of Australia.
Article
Zoology
Christophe DUFRESNES, Nicolas RODRIGUES, Romain SAVARY
Summary: This study compared the genomic phylogeographies of two amphibians in the Swiss Alps, revealing that the common frog had higher genetic divergences and lower within-population variation compared to the Alpine salamander. The unique glacial histories of the frog and salamander played a significant role in shaping their intraspecific diversity and structure, emphasizing the variability of phylogeographic responses to the Quaternary glaciations.
INTEGRATIVE ZOOLOGY
(2022)
Article
Plant Sciences
Jian Liu, Anders J. Lindstrom, Yong-Sheng Chen, Ran Nathan, Xun Gong
Summary: Ocean currents play a significant role in the long-distance dispersal, spatial distribution, and phylogeographic patterns of organisms. Studying Cycas plants with buoyant seeds reveals that these species' distribution and phylogeography are shaped by ocean circulation. The ocean modeling results show that seed dispersal of Cycas species is influenced by ocean currents.
Article
Ecology
Guillaume Decocq, Annie Guiller, Thomas Kichey, Katrien Van de Pitte, Emilie Gallet-Moron, Olivier Honnay, Deborah Closset-Kopp
Summary: The study found that when landscape permeability is above a certain threshold, SD and GD are influenced by the same processes, resulting in a positive SD-GD correlation in fragmented forests. This permeability threshold is species-specific, depending on species' dispersal traits and niche width. The SD-GD correlation also depends on current and past landscape permeability, with a lack of correlation being the rule in weakly permeable landscape matrices, especially when fragments are small.
Article
Plant Sciences
Juan Luis Garcia-Castano, Francisco Balao, Maria Teresa Lorenzo, Errol Vela, Seghir Hadjadj-Aoul, Stephen Mifsud, Anass Terrab
Summary: This study examines the genetic structure of Tetraclinis articulata populations and identifies four lineages that are geographically intermixed to a certain extent. Evidence suggests an ancient widespread distribution, followed by the appearance of isolated lineages that are now partially intermixed.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2021)
Article
Ecology
Sanja Z. Durovic, Martina Temunovic, Marjan Niketic, Gordana Tomovic, Peter Schonswetter, Bozo Frajman
Summary: The study found that despite the unequal climatic niches among the three Cerastium taxa, they share similarities in their overall phylogeographic structure, suggesting similar underlying processes and responses to historical events. It is anticipated that these taxa will respond differently to ongoing climate warming.
JOURNAL OF BIOGEOGRAPHY
(2021)
Article
Ecology
Patrick S. Fahey, Rachael M. Fowler, Todd G. B. McLay, Frank Udovicic, David J. Cantrill, Michael J. Bayly
Summary: This study examined the genetic relationships between populations of the mallee eucalypt, Eucalyptus behriana, in southeastern Australia, revealing the greatest genetic divergence between populations on either side of the Lower Murray Basin. It was found that the western populations fragmented earlier than the eastern ones, likely tied to climatic changes associated with glacial-interglacial cycles. The results suggest that environmental processes played a significant role in driving the fragmentation of the species' distribution.
ECOLOGY AND EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Sebastian Arenas, Alberto E. Burquez, Enriquena L. Bustamante, Enrique L. Scheinvar, Luis L. Eguiarte, Janice L. Bossart
Summary: This study examined the impact of the Baja California peninsula on the evolution and gene flow of the long-lived columnar cactus. The results showed genetic differences and structure between mainland and peninsular populations, and regular gene flow across the Gulf of California.
Article
Multidisciplinary Sciences
Giorgia G. Auteri, M. Raquel Marchan-Rivadeneira, Deanna H. Olson, L. Lacey Knowles
Summary: This study tested the genetic consequences of historical and contemporary disturbances on the coastal giant salamander in the Pacific Northwest of the United States. It found evidence of regional isolation and inbreeding, with lower genetic diversity in recently colonized northern sites. Genetic diversity was not associated with contemporary disturbances, indicating a lag in recovery of genetic diversity following a post-Pleistocene range expansion. The study highlights the vulnerability of more northern populations to future environmental changes and suggests that managing for connectivity alone may not be sufficient.
Review
Multidisciplinary Sciences
Alexander J. F. Verry, Pascale Lubbe, Kieren J. Mitchell, Nicolas J. Rawlence
Summary: Thirty years ago, DNA sequences were obtained from an extinct Aotearoa New Zealand animal for the first time. Ancient DNA research has provided unexpected insights into the origins of New Zealand's fauna. However, current studies have limitations and there is great potential for future advancements.
JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND
(2022)
Article
Evolutionary Biology
Yacine Ben Chehida, Roisin Loughnane, Julie Thumloup, Kristin Kaschner, Cristina Garilao, Patricia E. Rosel, Michael C. Fontaine
Summary: This study investigated the population structure and phylogeographic history of harbor porpoises in the North Atlantic using phylogenetics, population genetics, and predictive habitat modeling. The results revealed important departures from random mating and restricted dispersal, forming a highly significant isolation by distance. The findings provide insights into the processes shaping porpoise population structure and offer a framework for designing conservation strategies and forecasting future population evolution.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Ecology
Joshua M. Hallas, Thomas L. Parchman, Chris R. Feldman
Summary: The study examined the genetic diversity of Western terrestrial garter snakes and how historical biogeography and current environmental variation impact their genetic patterns. The research revealed distinct evolutionary lineages within the species, each with its own geographic range and history of diversification. The patterns of differentiation in snake populations were influenced by historical events, landscape features, and environmental variation.
JOURNAL OF BIOGEOGRAPHY
(2021)
Article
Ecology
H. Ikeda, S. Sakaguchi, V. Yakubov, V. Barkalov, H. Setoguchi
Article
Ecology
Yan Hou, Charlotte Sletten Bjora, Hajime Ikeda, Christian Brochmann, Magnus Popp
JOURNAL OF BIOGEOGRAPHY
(2016)
Article
Ecology
Daijiro Hata, Hiroyuki Higashi, Valentin Yakubov, Vyacheslav Barkalov, Hajime Ikeda, Hiroaki Setoguchi
JOURNAL OF BIOGEOGRAPHY
(2017)
Article
Plant Sciences
Shinichiro Kameoka, Hitoshi Sakio, Harue Abe, Hajime Ikeda, Hiroaki Setoguchi
JOURNAL OF PLANT RESEARCH
(2017)
Article
Biochemistry & Molecular Biology
Hajime Ikeda, Pernille Bronken Eidesen, Valentin Yakubov, Vyacheslav Barkalov, Christian Brochmann, Hiroaki Setoguchi
Article
Ecology
Hajime Ikeda, Valentin Yakubov, Vyacheslav Barkalov, Hiroaki Setoguchi
JOURNAL OF BIOGEOGRAPHY
(2018)
Article
Ecology
Asuka Takaishi, Andrey E. Kozhevnikov, Zoya V. Kozhevnikova, Hajime Ikeda, Noriyuki Fujii, Akiko Soejima
ECOLOGY AND EVOLUTION
(2019)
Article
Ecology
Hajime Ikeda, Valentin Yakubov, Vyacheslav Barkalov, Kazuhiro Sato, Noriyuki Fujii
JOURNAL OF BIOGEOGRAPHY
(2020)
Article
Plant Sciences
Hajime Ikeda, Tomomi Suzuki, Yoshito Oka, A. Lovisa S. Gustafsson, Christian Brochmann, Nobuyoshi Mochizuki, Akira Nagatani
Summary: This study suggests that fine tuning the stability of phytochrome (Pfr) is a fundamental mechanism for plants to optimize phytochrome-related traits in their evolution and adaptation to spatially varying environments. The research revealed evolutionary divergence in physiological responses relevant to thermal stability of Pfr between two sister species of Brassicaceae, with the higher latitude species showing stronger responses to light-limited conditions.
Article
Plant Sciences
A. Lovisa S. Gustafsson, Galina Gussarova, Liv Borgen, Hajime Ikeda, Alexandre Antonelli, Lucas Marie-Orleach, Loren H. Rieseberg, Christian Brochmann
Summary: This study finds that post-zygotic reproductive isolation is common in Arctic flora, and this may be associated with glacial cycles and selfing mating systems.
Article
Plant Sciences
Haruna Sata, Midori Shimizu, Takaya Iwasaki, Hajime Ikeda, Akiko Soejima, Andrey E. Kozhevnikov, Zoya Kozhevnikova, Hyoung-Tak Im, Su-Kil Jang, Takayuki Azuma, Atsushi J. Nagano, Noriyuki Fujii
Summary: The study revealed that Viola orientalis originated in northeastern Asia and spread southward through the Korean Peninsula to the Japanese Islands during the last glacial period. This finding supports the previously proposed evolutionary hypothesis regarding the origin and migration routes of the Mansen elements.
JOURNAL OF PLANT RESEARCH
(2021)
Article
Plant Sciences
Hajime Ikeda
Summary: Mountain regions play an important role in supporting biodiversity, especially in East Asia. The high mountains of the Japanese archipelago harbor alpine and arctic-alpine plant populations, which have persisted through climate changes in the Pleistocene. Phylogeographic studies reveal complex range dynamics of these plants and their genetic relationships with northern regions, indicating possible ecological divergence.
JOURNAL OF PLANT RESEARCH
(2022)
Article
Plant Sciences
Tomoka Sakaba, Akiko Soejima, Shinji Fujii, Hajime Ikeda, Takaya Iwasaki, Hiroaki Saito, Yoshihisa Suyama, Ayumi Matsuo, Andrey E. Kozhevnikov, Zoya V. Kozhevnikova, Hongfeng Wang, Siqi Wang, Jae-Hong Pak, Noriyuki Fujii
Summary: A group of temperate grassland plant species, known as the Mansen elements, are found in Japan and continental East Asia. Researchers hypothesized that these species are remnants of continental grasslands in Japan from a colder age, but their migration history remained unclear. To investigate the migration history, the phylogeographic analysis of Tephroseris kirilowii, a member of the group, was conducted using single-nucleotide polymorphisms (SNPs). The results showed that the Japanese populations of T. kirilowii diverged from continental East Asia around 25.2 thousand years ago, with the first divergence within Japan occurring around 20.2 thousand years ago. The study suggested a post-glacial expansion of T. kirilowii in Japan based on limited suitable climate during the last glacial maximum and slight genetic differentiation among Japanese populations.
JOURNAL OF PLANT RESEARCH
(2023)
Editorial Material
Plant Sciences
Hajime Ikeda
Summary: This virtual issue compiles 35 papers on phylogeographic studies from the Journal of Plant Research, focusing on three major topics in biodiversity: biogeography, systematics, and evolution.
JOURNAL OF PLANT RESEARCH
(2023)
Article
Evolutionary Biology
Hajime Ikeda, Hiroaki Setoguchi
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2017)