Genome-wide single nucleotide polymorphism array and whole-genome sequencing reveal the inbreeding progression of Banna minipig inbred line [Seq]
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ABSTRACT: Genome-wide single nucleotide polymorphism array and whole-genome sequencing reveal the inbreeding progression of Banna minipig inbred line [Seq]
Project description:We sequenced and analyzed the genome of a highly inbred miniature Chinese pig strain, the Banna Minipig Inbred Line (BMI). we conducted whole genome screening using next generation sequencing (NGS) technology and performed SNP calling using Sus Scrofa genome assembly Sscrofa11.1.
Project description:Genome-wide single nucleotide polymorphism array and whole-genome sequencing reveal the inbreeding progression of Banna minipig inbred line
Project description:The genomic causes of inbreeding depression are poorly known. Several studies have found widespread transcriptomic alterations in inbred organisms, but it remains unclear which of these alterations are causes of the depression and which are mere responses to the ensuing physiological stress. We made a c-DNA microarray analysis in Drosophila melanogaster attempting to differentiate causes from responses of inbreeding depression. The rationale of the experiment was that, while depression is a general phenomenon producing similar consequences in different inbred lines, its first genetic causes would be different for each inbred line, as they are expected to be caused by the fixation of rare deleterious genes. Many changes in expression were common to all sets, but fourteen genes, grouped in four expression clusters, showed strong set-specific changes, and were therefore candidates to be sources of the inbreeding depression observed.
Project description:Successful production of offspring in mammals is determined by the growth and apoptosis pathway, which is responsible for maintaining the balance between the estrous cycle. It is also believed that the development of the porcine ovary is regulated similarly; however, the molecular mechanism underlying differences in follicle development in the minipig and pig has yet to be elucidated. The present study aimed to identify developmental-associated genes differentially expressed in the minipig vs. pig.
Project description:Minipigs are animal models widely used in biomedical studies due to their physiological and anatomical similarities to humans. However, a comprehensive resource for the Korean minipig (Sus scrofa) transcriptome remains unavailable. In this study, we constructed a de novo transcriptome of the Korean minipig using RNA-seq data obtained from ten tissues across ten samples. The final assembly comprised 57,085 coding transcripts with an average length of 3,075 nucleotides and an N50 of 4,258 nucleotides. In total, 65.4% of the transcripts were annotated, and biological functions were assigned. Transcript expression profiling and principal component analysis showed that samples clustered by tissue type, reflecting transcriptomic features shared across tissues. Comparative analysis demonstrated that the novel transcriptome assembly had contiguity and completeness comparable to those available for pig and minipig breeds. Overall, this study provides a comprehensive transcriptomic resource for the Korean minipig, facilitating further functional analyses.