H
Hitoshi Araki
Researcher at Hokkaido University
Publications - 99
Citations - 7845
Hitoshi Araki is an academic researcher from Hokkaido University. The author has contributed to research in topics: Population & Gene. The author has an hindex of 35, co-authored 94 publications receiving 6735 citations. Previous affiliations of Hitoshi Araki include Swiss Federal Institute of Aquatic Science and Technology & University of Illinois at Urbana–Champaign.
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Genetic Effects of Captive Breeding Cause a Rapid, Cumulative Fitness Decline in the Wild
TL;DR: The results suggest that even a few generations of domestication may have negative effects on natural reproduction in the wild and that the repeated use of captive-reared parents to supplement wild populations should be carefully reconsidered.
Supporting Online Material for Genetic Effects of Captive Breeding Cause a Rapid, Cumulative Fitness Decline in the Wild
TL;DR: In this paper, the authors measured lifetime reproductive success of the first two generations of steelhead trout that were reared in captivity and bred in the wild after they were released, and showed that genetic effects of domestication reduce subsequent reproductive capabilities by ∼40% per captive-reared generation when fish are moved to natural environments.
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MiFish, a set of universal PCR primers for metabarcoding environmental DNA from fishes: detection of more than 230 subtropical marine species.
Masaki Miya,Yukuto Sato,Tsukasa Fukunaga,Tetsuya Sado,J. Y. Poulsen,Keiichi Sato,Toshifumi Minamoto,Satoshi Yamamoto,Hiroki Yamanaka,Hitoshi Araki,Michio Kondoh,Wataru Iwasaki +11 more
TL;DR: The metabarcoding approach presented here is non-invasive, more efficient, more cost-effective and more sensitive than the traditional survey methods and has the potential to serve as an alternative tool for biodiversity monitoring that revolutionizes natural resource management and ecological studies of fish communities on larger spatial and temporal scales.
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Fitness of hatchery-reared salmonids in the wild
TL;DR: A simple quantitative genetic model is used to evaluate whether domestication selection is a sufficient explanation for some observed rapid fitness declines in hatchery fish in the wild, and it is shown that if selection acts on a single trait, such rapid effects can be explained only when selection is very strong.
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Genome-wide identification of NBS genes in japonica rice reveals significant expansion of divergent non-TIR NBS-LRR genes
TL;DR: The structural and genetic diversity that exists among NBS-LRR proteins in rice is remarkable, and suggests that diversifying selection has played an important role in the evolution of R genes in this agronomically important species.