T
Takayoshi Ueda
Researcher at Utsunomiya University
Publications - 35
Citations - 438
Takayoshi Ueda is an academic researcher from Utsunomiya University. The author has contributed to research in topics: Rainbow trout & Rhodeus. The author has an hindex of 13, co-authored 35 publications receiving 415 citations.
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Journal ArticleDOI
Genetic introgression by the Rose bitterling, Rhodeus ocellatus ocellatus, into the Japanese rose bitterling, R. o. kurumeus (Teleostei: Cyprinidae)
Kouichi Kawamura,Takayoshi Ueda,Ryoichi Arai,Yoshikazu Nagata,Kenji Saitoh,Hiroyuki Ohtaka,Yoshihiko Kanoh +6 more
TL;DR: Both RFLP analysis of mitochondrial DNA and RAPD-PCR analysis of genomic DNA were performed to elucidate the genetic introgression of R. o.
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Phylogenetic Relationships of Bitterling Fishes (Teleostei: Cypriniformes: Acheilognathinae), Inferred from Mitochondrial Cytochrome b Sequences
TL;DR: The timing of divergence suggests that the shift of spawning from spring to autumn, coupled with embryonic diapause, convergently emerged twice in the evolution of bitterling, possibly as an adaptation to the climate of the late Pliocene.
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FISH-mapping of 18S ribosomal RNA genes and telomeric sequences in the Japanese bitterlings Rhodeus ocellatus kurumeus and Tanakia limbata (Pisces, Cyprinidae) reveals significant cytogenetic differences in morphologically similar karyotypes.
Luciana Sola,Ekaterina Gornung,Hiroto Naoi,R Gunji,C Sato,K Kawamura,Ryoichi Arai,Takayoshi Ueda +7 more
TL;DR: Two karyoevolutive trends might have been identified in the subfamily Acheilognathinae and they were found to be scattered along the NORs in the oily bitterling.
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Possibilities of the sexual selection at the young stage of the Salmonid fishes - I. Sex chromosomes in the kokanee salmon Oncorhynchus nerka.
Takayoshi Ueda,Yoshio Ojima +1 more
TL;DR: The precise constitution of chromosomes from the young kokanee salmon Oncorhynchus nerka was stably obtained by means of the short-term fin cultures and strongly indicate that the male has the X1X2-Y, while the female has theX1X1-X2X2 in sex chromosome complexes.
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Cytogenetical characteristics of the embryos between diploid female and triploid male in rainbow trout
TL;DR: Judging from numbers and constitutions of the chromosomes, it is presume that the chromosomes of the triploid during spermatogenesis divide into two by near the common way.