Genetic characteristics and possible introduced origin of the paradise fish Macropodus opercularis in the Ryukyu Archipelago, Japan

Kano, Yuichi; Tabata, Ryoichi; Nakajima, Jun; Takada-Endo, Mikumi; Zhang, Chunguang; Zhao, Yahui; Yamashita, Takanori; Watanabe, Katsutoshi

doi:10.1007/s10228-017-0602-7

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…Mitochondrial DNA markers can be used as molecular evidence to explore the origin and dispersal of lowland freshwater fish. For example, Kano et al (2018) proposed a persuasive explanation for the possible origin of paradise fish in the Ryukyu Archipelago. In our study, both the Shuanglienpi wild population and the Taiyangpi population showed very high Hd and π values in the D-loop gene (0.679 and 0.00121 for OSL, 0.75 and 0.00398 for OTY) and COI gene (0.571 and 0.00311 for OSL, 0.429 and 0.00078 for OTY).…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity of the regionally endangered Chinese ricefish (Oryzias sinensis) in Taiwan, with comments on its conservation status

Huang

Wang

LIN

et al. 2022

Zootaxa

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The Chinese ricefish (Oryzias sinensis) is a freshwater fish that is regionally endangered in Taiwan. To evaluate its conservation status and further formulate conservation plans for this species in Taiwan, this study analyzed the fish collected from all known localities, including a newly discovered population. The phylogenetic trees based on D-loop and COI divided the Chinese ricefish into two major clades: Taiyangpi-Shuanglienpi and Taiping-Gongliao. This study showed that both the Shuanglienpi and Taiyangpi wild populations had significantly higher Hd and π values, while the Shuanglienpi restored population only had one haplotype from the wild. However, their genetic diversity may have decreased over the past few decades. The Gongliao and Taiping populations shared the same haplotype as a population from a previous study. We propose that the Gongliao and Taiping populations were founded by a few individuals and might have originated from a single introduction event from southeastern mainland China. Low genetic diversity was clearly observed in the Taiping, Gongliao and Shuanglienpi restored populations. Based on the present investigation and previous studies, the invasive poeciliid fish (such as mosquitofish and green swordtail) contribute the most to the decline of the Chinese ricefish population and genetic diversity in Taiwan.

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Section: Discussionmentioning

confidence: 99%

Genetic diversity of the regionally endangered Chinese ricefish (Oryzias sinensis) in Taiwan, with comments on its conservation status

Huang

Wang

LIN

et al. 2022

Zootaxa

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show abstract

“…Unsurprisingly, given their phylogenetic proximity, the paradise fish genome also shows high synteny to the recently published Betta splendens genome (~450 Mb on 21 chromosomes) (Fan et al, 2018; Kwon et al, 2022; Wang et al, 2021; Zhang et al, 2022). Most extant paradise fish populations (both resident and recently introduced) studied so far show very low levels of genetic diversity, which probably indicates habitat fragmentation coupled with high levels of inbreeding (Kano et al, 2018; Tzeng et al, 2006; Wang et al, 1999). (This finding also coincides with our unpublished observations of domesticated and wild‐type strains).…”

Section: Introductionmentioning

confidence: 99%

The paradise fish, an advanced animal model for behavioral genetics and evolutionary developmental biology

Szabó,

Fodor,

Varga

et al. 2023

J Exp Zool Pt B

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Paradise fish (Macropodus opercularis) is an air‐breathing freshwater fish species with a signature labyrinth organ capable of extracting oxygen from the air that helps these fish to survive in hypoxic environments. The appearance of this evolutionary innovation in anabantoids resulted in a rewired circulatory system, but also in the emergence of species‐specific behaviors, such as territorial display, courtship and parental care in the case of the paradise fish. Early zoologists were intrigued by the structure and function of the labyrinth apparatus and a series of detailed descriptive histological studies at the beginning of the 20th century revealed the ontogenesis and function of this specialized system. A few decades later, these fish became the subject of numerous ethological studies, and detailed ethograms of their behavior were constructed. These latter studies also demonstrated a strong genetic component underlying their behavior, but due to lack of adequate molecular tools, the fine genetic dissection of the behavior was not possible at the time. The technological breakthroughs that transformed developmental biology and behavioral genetics in the past decades, however, give us now a unique opportunity to revisit these old questions. Building on the classic descriptive studies, the new methodologies will allow us to follow the development of the labyrinth apparatus at a cellular resolution, reveal the genes involved in this process and also the genetic architecture behind the complex behaviors that we can observe in this species.

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Resource Economics of Exotic Mongoose Control

Matsuda

Kotani

Sasaki

2021

Ecological Risk Management

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Genetic characteristics and possible introduced origin of the paradise fish Macropodus opercularis in the Ryukyu Archipelago, Japan

Cited by 6 publications

References 20 publications

Genetic diversity of the regionally endangered Chinese ricefish (Oryzias sinensis) in Taiwan, with comments on its conservation status

Genetic diversity of the regionally endangered Chinese ricefish (Oryzias sinensis) in Taiwan, with comments on its conservation status

The paradise fish, an advanced animal model for behavioral genetics and evolutionary developmental biology

Resource Economics of Exotic Mongoose Control

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