New mtDNA Haplotypes of the Sika Deer (<i>Cervus nippon</i>) Found in Hokkaido, Japan Suggest Human-Mediated Immigration

Terada, Chisato; Yamada, Toshiya; Uno, Hiroyuki; Saitoh, Takashi

doi:10.3106/041.038.0208

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…The two mtDNA haplotypes of the southern group have been observed in Toyama Prefecture, which is the distribution area of the northern mtDNA group (Yamazaki, 2018). And similar cases associated with southern mtDNA haplotypes have been identified in southern Kanto (Yuasa et al, 2007) and Hokkaido (Terada et al, 2013). These southern mtDNA haplotypes are likely to have originated from artificial introductions.…”

Section: Introductionsupporting

confidence: 67%

“…This taxonomic confusion and lack of consensus surrounding the genetic structure of the species makes it difficult to propose conservation units and provide recommendations for genetic management of sika deer in Japan. Although the genetic structure of sika deer in Japan is understudied, recent artificial introductions are known to have disturbed the original structure (Eva & Yamazaki, 2018, 2019; Matsumoto et al, 2015, 2019; Takagi et al, 2020; Terada et al, 2013; Yamazaki, 2018; Yuasa et al, 2007). For example, the introduced crossbreeds among red deer ( C. elaphus ), Formosan sika deer ( C. n. taiouanus ), and Formosan sambar ( C. unicolor swinhoei ) escaped from captivity and putative F1 hybrids between these exotic deer and native sika deer have been reported from Tomogashima Island, Wakayama Prefecture (Matsumoto et al, 2015, 2019; Takagi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Development of paternally‐inherited Y chromosome simple sequence repeats of sika deer and their application in genetic structure, artificial introduction, and interspecific hybridization analyses

et al. 2022

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The effect of sex‐biased dispersal in mammalian ecology and evolution can be elucidated by focusing on maternally or paternally inherited DNA polymorphisms. In sika deer, the genetic structure of the maternal lineage has been clarified by studies based on mitochondrial DNA variation. However, the genetic structure of the paternal lineage has not been well analyzed due to the limited number of point mutations in Y chromosome sequences. In this study, we focused on mutations of highly polymorphic simple sequence repeats (SSRs) in the Y chromosome and developed 16 Y chromosome SSR markers to evaluate male‐biased dispersal in sika deer. In total, 55 alleles and 31 multi‐locus haplotypes were detected from these 16 loci, revealing clear genetic differentiation among populations (F′ST = 0.783). In particular, there were unique alleles for the native individuals on Tanegashima and Yakushima Islands and introduced exotic individuals from Taiwan. These markers are highly useful for evaluating not only historical male‐mediated dispersal, genetic structure, and demography of the native populations in Japan, but also the impact of artificial introductions on hybridization, especially the introgression of alleles from escaped farmed individuals to native populations.

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Section: Introductionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Development of paternally‐inherited Y chromosome simple sequence repeats of sika deer and their application in genetic structure, artificial introduction, and interspecific hybridization analyses

et al. 2022

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“…1). Samples from the southern area were not used, because experimental reintroductions were conducted at this location during 1980 and 1981 (Kaji et al 2000(Kaji et al , 2010, with the possible unofficial introduction of deer from outside of Hokkaido (Terada et al 2013).…”

Section: Sample Collectionmentioning

confidence: 99%

Temporal change in the spatial genetic structure of a sika deer population with an expanding distribution range over a 15‐year period

Takekawa

Yamada

et al. 2013

Population Ecology

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Since the 1980s, the sika deer (Cervus nippon Temminck, 1838) population of Hokkaido, Japan, has grown, resulting in range expansion. To assess the effects of this range expansion on the spatial genetic structure of the population, we compared subpopulation structures during 2 different periods (168 samples for 1991-1996, and 169 samples for 2008-2010), using mitochondrial DNA (mtDNA; D-loop) and microsatellites (9 loci). The number of gene-based subpopulations decreased across the 15-year period; specifically from four to three subpopulations based on mtDNA, and from two to one subpopulation based on microsatellite DNA. The fusion of the two northern subpopulations caused the change to the mtDNA-based structure, which might be explained by the dispersal of females from higher to lower density subpopulations. In comparison, the reason for the change in the microsatellite DNA-based structure was unclear, because no significant genetic differentiation was observed between the two study periods. A stable mtDNA-based structure was maintained in the north and central population separated by a west-toeast boundary, while a north-to-south boundary in eastern Hokkaido maintained stability in the eastern subpopulation versus all other subpopulations. The findings of this study demonstrate the importance of understanding gene flow within a structured population to implement effective management efforts; for instance, the culling of one subpopulation might not affect an adjacent subpopulation, because deer movement is limited between the subpopulations.

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“…The sika deer of the Japanese archipelago include six subspecies (Ohtaishi 1986), which can be clearly separated into two different groups based on mitochondrial DNA D-loop region analysis: those inhabiting northern and southern Japan (Nagata et al 1999). The mitochondrial D-loop region has been used in many studies for analyzing phylogenetic relationships among Japanese sika deer (Nagata et al 1999;Yamada et al 2006;Yuasa et al 2007;Yoshio et al 2008;Takiguchi et al 2012;Terada et al 2013), but analysis of this DNA only yields information about maternal inheritance. Microsatellites are more powerful tools for analyzing genetic population structures (Yuasa 2007;Olano-Marin et al 2014;Hoffmann et al 2016;Zachos et al 2016) because these markers are located at multiple chromosomal loci and are rich in polymorphisms.…”

Section: Introductionmentioning

confidence: 99%

“…; Terada et al . ), but analysis of this DNA only yields information about maternal inheritance. Microsatellites are more powerful tools for analyzing genetic population structures (Yuasa ; Olano‐Marin et al .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the genetic structure of sika deer (Cervus nippon) in Japan's Kanto and Tanzawa mountain areas, based on microsatellite markers

Konishi

Hata

Matsuda

et al. 2017

Animal Science Journal

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The browsing habits of sika deer (Cervus nippon) in Japan have caused serious ecological problems. Appropriate management of sika deer populations requires understanding the different genetic structures of local populations. In the present study, we used 10 microsatellite polymorphisms to explore the genetic structures of sika deer populations (162 individuals) living in the Kanto region. The expected heterozygosity of the Tanzawa mountain range population (Group I) was lower than that of the populations in the Kanto mountain areas (Group II). Our results suggest that moderate gene flow has occurred between the sika deer populations in the Kanto mountain areas (Group II), but not to or from the Tanzawa mountain range population (Group I). Also, genetic structure analysis showed that the Tanzawa population was separated from the other populations. This is probably attributable to a genetic bottleneck that developed in the Tanzawa sika deer population in the 1950s. However, we found that the Tanzawa population has since recovered from the bottleneck situation and now exhibits good genetic diversity. Our results show that it is essential to periodically evaluate the genetic structures of deer populations to develop conservation strategies appropriate to the specific structures of individual populations at any given time.

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New mtDNA Haplotypes of the Sika Deer (Cervus nippon) Found in Hokkaido, Japan Suggest Human-Mediated Immigration

Cited by 6 publications

References 17 publications

Development of paternally‐inherited Y chromosome simple sequence repeats of sika deer and their application in genetic structure, artificial introduction, and interspecific hybridization analyses

Development of paternally‐inherited Y chromosome simple sequence repeats of sika deer and their application in genetic structure, artificial introduction, and interspecific hybridization analyses

Temporal change in the spatial genetic structure of a sika deer population with an expanding distribution range over a 15‐year period

Evaluation of the genetic structure of sika deer (Cervus nippon) in Japan's Kanto and Tanzawa mountain areas, based on microsatellite markers

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