Reproductive Ability of Hybrids between Japanese Pond Turtle (Mauremys japonica) and Reeves' Pond Turtle (Mauremys reevesii)

Ueno, Suguru; Kamezaki, Naoki; Mine, Kanako; Suzuki, Daiki; Kikuchi, Kiyoshi; Okamoto, K.; Torii, Masao; Kadowaki, Kazutaka; Okamoto, Ken; Sano, Mitsuhiko

doi:10.2108/zs210047

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…China, the country of origin of M. sinensis , is the largest domestic importer of turtles, with approximately 110 tons imported in the last two decades. The turtle business in China is extensive, with as many as 10 turtle farms in Hainan alone and different species of turtles reared in the same pond [40]. Indeed, M. iversoni (invalid) has also been identified as a hybrid arising from the co-rearing of M. mutica and C. trifasciata on turtle farms in China [40].…”

Section: Discussionmentioning

confidence: 99%

“…The turtle business in China is extensive, with as many as 10 turtle farms in Hainan alone and different species of turtles reared in the same pond [40]. Indeed, M. iversoni (invalid) has also been identified as a hybrid arising from the co-rearing of M. mutica and C. trifasciata on turtle farms in China [40]. In particular, genetic pollution has been reported in Mauremys , with hybrids being frequently identified [6,8,41–45].…”

Section: Discussionmentioning

confidence: 99%

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Development of novel high-resolution melting markers for the assessment of hybridization betweenMauremys sinensisandMauremys reevesiiin South Korea

Baek,

Cheong,

Kim

et al. 2023

Preprint

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The Chinese striped-necked turtleMauremys sinensiswas first reported in the wild in South Korea in 2012. Owing to its potential to hybridize with the native and endangeredMauremys reevesiiin South Korea, leading to ecosystem disturbance,M. sinensiswas designated as an ecosystem-disturbing species (EDS; hereafter) in 2020. Such hybridization betweenM. sinensisandM. reevesiihas previously been reported in Taiwan. To protect and conserve the native South KoreanM. reevesiipopulation, the extent of its hybridization needed to be examined. Therefore, we developed novel high-resolution melting markers to elucidate the status of hybridization betweenMauremys sinensisandMauremys reevesiiin South Korea. We identified the presence ofM. sinensis,M. reevesii, and their hybrid across 47 sites in South Korea. Among these sites, five locations were confirmed as areas of sympatry for bothM. sinensisandM. reevesii, with one hybrid individual identified at the Jeonju-si site. In total, hybrids were identified at four different sites. For more definitive species identification, blood samples were collected from the specimens and subjected to mitochondrial DNA (mtDNA) cytochrome c oxidase subunit I (COI) gene and nuclear DNA (nDNA)R35gene analysis, leading to the identification of two more hybrids from two other sites. To date, no hybrids ofM. sinensishave been confirmed to reproduce in the wild, yet this requires further research for validation. The high-resolution melting (HRM) marker in theR35gene developed in this study yielded three distinct curves that were designated asM. sinensis,M. reevesii, andM. sinensis×M. reevesii, aligning with those of theR35gene sequencing. The novel markers developed in this study serve as a valuable tool that can be used in future research on rapid detection of hybridization.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Development of novel high-resolution melting markers for the assessment of hybridization betweenMauremys sinensisandMauremys reevesiiin South Korea

Baek,

Cheong,

Kim

et al. 2023

Preprint

View full text Add to dashboard Cite

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“…Globally, non-native freshwater turtles have been intentionally or unintentionally introduced into various habitats (Sung et al, 2021), causing damage to local biodiversity and ecosystems through competition (Dıáz-Paniagua et al, 2011), hybridization (Ueno et al, 2021), and the spread of parasites (Mendoza-Roldan et al, 2020) and diseases (Bosch et al, 2015). To prevent the further spread of invasive alien species (IAS), employing species distribution models (SDMs) to analyze the current and future ranges of IAS can provide a scientific basis for decisionmaking (Bertolino et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Assessing the invasion risk of Chelydra serpentina in China under current and future climate change scenarios

Mu,

2023

Front. Ecol. Evol.

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Chelydra serpentina, a species introduced to China for aquaculture purposes, is commonly found in its natural habitats within the country. The invasion of C. serpentina poses potential threats to both the biodiversity of China and human health. The potential distribution of C. serpentina has been simulated using the species distribution model – MaxEnt, incorporating global distribution data, climate, and land cover variables. Our simulations encompasses both current conditions and four future climate change scenarios. Currently, the potential distribution is concentrated in central, eastern, and southeastern regions of China, with the central and eastern regions facing the highest risk of invasion. Under future climate change scenarios, the distribution area may expand by 30–90%, and multiple provinces will face a more severe threat of invasion. This study presents the inaugural simulation of the potential invasion range of C. serpentina under current climatic conditions. Moreover, it reveals that climate change is likely to contribute to the expansion of its invasive range, thus furnishing a reference foundation for scientific prevention and control measures. We propose integrating citizen science and eDNA technologies into species monitoring to enhance the efficiency of detecting invasive species. This research has filled the gap in the research on the invasive distribution range of C. serpentina in China and globally, while also providing novel perspectives on the invasion control of this species.

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Density-dependent unidirectional hybridization between the Japanese pond turtle, Mauremys japonica, and the exotic Reeves’ pond turtle, Mauremys reevesii, in Japan, inferred from molecular and morphological analyses

Matsuda,

Kaburagi,

Kamezaki

et al. 2024

Zoological Journal of the Linnean Society

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Hybridization between the indigenous Japanese pond turtle, Mauremys japonica, and the exotic Reeves’ pond turtle, Mauremys reevesii, is widespread in Japan. In this study, we examined this hybridization using an analysis of mtDNA and 11 microsatellite markers (MS) combined with morphometry. In a Bayesian clustering analysis of MS, the admixture of two clusters equivalent to the two species was detected in the Seto Inland Sea and Ise Bay regions. While mtDNA showed reciprocal hybridization between the two species, their hybrids tended to possess the mtDNA of the rarer species at each locality. Contrary to preceding studies, F2/later generations outnumbered F1 generations. In addition, the admixture of two mtDNA lineages (Chinese and Korean) of M. reevesii was widely observed in all regions, together with the range expansion of the recently introduced Chinese lineage. A significant correlation was observed between plastron morph and assignment probability of MS, showing that plastron morphology reflects the degree of introgression by M. reevesii in M. japonica. This finding means that the reproductive interference of the dominant species on a rarer species is a major factor driving the hybridization of the two Mauremys species. In addition, the range expansion of the Chinese lineage of M. reevesii appears to enhance the introgression by M. reevesii in M. japonica.

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Reproductive Ability of Hybrids between Japanese Pond Turtle (Mauremys japonica) and Reeves' Pond Turtle (Mauremys reevesii)

Cited by 4 publications

References 25 publications

Development of novel high-resolution melting markers for the assessment of hybridization betweenMauremys sinensisandMauremys reevesiiin South Korea

Development of novel high-resolution melting markers for the assessment of hybridization betweenMauremys sinensisandMauremys reevesiiin South Korea

Assessing the invasion risk of Chelydra serpentina in China under current and future climate change scenarios

Density-dependent unidirectional hybridization between the Japanese pond turtle, Mauremys japonica, and the exotic Reeves’ pond turtle, Mauremys reevesii, in Japan, inferred from molecular and morphological analyses

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