Geographic population structure and sequence divergence in the mitochondrial DNA control region of the Japanese wild boar (Sus scrofa leucomystax), with reference to those of domestic pigs

Okumura, Naohiko; Ishiguro, Naotaka; Nakano, Masuo; Hirai, Katsuya; Matsui, Akira; Sahara, Makoto

doi:10.1007/bf02407018

Cited by 58 publications

(37 citation statements)

References 22 publications

(13 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These facts were already reported in previous studies concerning mtDNA and nuclear gene phylogenies [1,7,8,19,28], which suggest a maternal introgression between Asian pigs and Europe pigs, and crossbreeding among those. The introgression of Asian pig mtDNA haplotypes into Europe during the 18 th and 19 th centuries was proven at the molecular level using the mtDNA D-loop and the CYTB gene and nuclear genes, such as MC1R, TYR and GPIP [7,10].…”

Section: Resultssupporting

confidence: 81%

Maternal Origins of the Jeju Native Pig Inferred from PCR-RFLP Haplotypes and Molecular Phylogeny for Mitochondrial DNA CYTB Gene Sequences

Han¹,

Ko²,

Jeong³

et al. 2011

Journal of Life Science

View full text Add to dashboard Cite

In an effort to gain greater understanding of the maternal lineages of the Jeju native pig (JNP), we analyzed the mitochondrial DNA (mtDNA) CYTB gene and compared it with those of other pig breeds. PCR-RFLP analysis was conducted with six pig breeds including JNP, and then the RFLP patterns allowed for the separation of the pig breeds into two distinct haplotypes (mtCYTB1 and mtCYTB2). The JNP CYTB sequences were detected in both the European and Asian breed clusters on the phylogenetic tree. The J2 group was sorted with the indigenous cluster of Asian pig lineages and was related closely to Chinese native pig breeds, but a second group, J1, was sorted with the European pig lineages and appeared to be related to Spanish Iberian native pigs, rather than to Asian breeds. These results indicate that the JNP currently raised on Jeju Island have two major maternal origins estimated in Asian and European pigs. We concluded that the JNP that share a common lineage with indigenous Asian pigs were domesticated in the distant past, originating from pigs that were already being raised elsewhere at that time, and that the European pig breeds introduced in the twentieth century have also contributed to the formation of this pig population.

show abstract

Section: Resultssupporting

confidence: 81%

Maternal Origins of the Jeju Native Pig Inferred from PCR-RFLP Haplotypes and Molecular Phylogeny for Mitochondrial DNA CYTB Gene Sequences

Han¹,

Ko²,

Jeong³

et al. 2011

Journal of Life Science

View full text Add to dashboard Cite

show abstract

“…It is described as a philopatric species depending on age class (Spitz and Janeau 1990;Lemel et al 2003), and presenting differences on annual and seasonal space use (Keuling et al 2007). However, evidence indicates low genetic flow among local populations (Okumura et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Genetic structure of the wild boar population in Portugal: Evidence of a recent bottleneck

et al. 2009

View full text Add to dashboard Cite

The present study assesses the degree of genetic structure and the presence of recent genetic bottlenecks in the wild boar population in Portugal. One hundred and ten individuals were sampled after capture during organised legal drive hunts, conducted in 58 municipalities across the continental territory, during the game seasons of 2002/2003 and 2003/2004. Individuals were genetically typed at six microsatellite loci using multiplex PCR amplification. Significant deviations from Hardy-Weinberg equilibrium were found for the total population of wild boar in Portugal. Wild boar population genetic structure was assessed using Bayesian methods, suggesting the existence of three subpopulations (North, Centre and South). Tests were conducted to detect the presence of potential migrants and hybrids between subpopulations. After exclusion of these individuals, three sets of wild boars representative of respective subpopulations were distinguished and tested for the effects of recent bottlenecks. Genetic distances between pairs of subpopulations were quantified using F ST and R ST estimators, revealing a variation of 0.138-0.178 and 0.107-0.198, respectively. On the basis of genetic and distribution data for Portuguese wild boar from the beginning of the 20th century, a model of strong demographic decline and contraction to isolated refuge areas at the national level, followed by a recovery and expansion towards former distribution limits is suggested. Some evidence points to present admixture among subpopulations in contact areas.

show abstract

“…The numbers shown at the upper right of the primers denote the nucleotide positions in the D-loop region (Okumura et al, 1996). L and H designate light and heavy strands, respectively.…”

mentioning

confidence: 99%

Morphological and molecular phylogenetic characteristics of dwarf <i>Sus</i> specimens from the Noguni shell middens in the Ryukyu Islands

Takahashi

Ishiguro

Matsui

et al. 2012

Self Cite

View full text Add to dashboard Cite

We analyzed the morphological and molecular phylogenetic characteristics of Sus bone and tooth specimens excavated from the Noguni shell midden and the Noguni B shell midden (c. 7200-4400 uncal. BP), in Okinawa main island. They were compared with those of Sus remains from later sites on the Okinawa Islands (c. 4800-1400 uncal. BP) as well as modern Ryukyu wild boar (Sus scrofa riukiuanus). Based on the length and breadth of lower third molars, Sus specimens from the Noguni shell middens were distinctly smaller than those from modern Ryukyu wild boar. Lower third molars from the Noguni shell middens also show a different size range from those of other ancient sites in the Okinawa Islands. Some haplotypes from the Noguni B shell midden belong to a different cluster from modern Ryukyu wild boar based on the analysis of mitochondrial DNA D-loop region, although nucleotide sequences are fragmentary. The morphological and molecular phylogenetic analyses indicate that Sus from the Noguni shell middens included different populations from modern Ryukyu wild boar. We suggest two possible hypotheses: first, the Sus from the Noguni shell middens were introduced to Okinawa main island from elsewhere; second, prehistoric wild boar that inhabited the Ryukyu Islands had a larger morphological and genetic variability than modern Ryukyu wild boar.

show abstract

Geographic population structure and sequence divergence in the mitochondrial DNA control region of the Japanese wild boar (Sus scrofa leucomystax), with reference to those of domestic pigs

Cited by 58 publications

References 22 publications

Maternal Origins of the Jeju Native Pig Inferred from PCR-RFLP Haplotypes and Molecular Phylogeny for Mitochondrial DNA CYTB Gene Sequences

Maternal Origins of the Jeju Native Pig Inferred from PCR-RFLP Haplotypes and Molecular Phylogeny for Mitochondrial DNA CYTB Gene Sequences

Genetic structure of the wild boar population in Portugal: Evidence of a recent bottleneck

Morphological and molecular phylogenetic characteristics of dwarf <i>Sus</i> specimens from the Noguni shell middens in the Ryukyu Islands

Contact Info

Product

Resources

About