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Area of Science:

  • Comparative genomics
  • Livestock genetics
  • Bioinformatics

Background:

  • Water buffalo (Bubalus bubalis L.) are crucial livestock globally.
  • A high-quality reference genome assembly is lacking for water buffalo, hindering fine-scale comparative genomics.
  • Existing cattle (Bos taurus) reference genomes are extensively studied.

Purpose of the Study:

  • To characterize genomic differences between water buffalo and cattle genomes.
  • To provide a dataset for comparative genomics and functional annotation of genes.
  • To facilitate research into phenotypic differences between cattle and water buffalo.

Main Methods:

  • Alignment of 14 river buffalo whole genome sequencing datasets to the cattle reference genome.
  • Identification and characterization of deletion copy number variation (CNV) regions.
  • Identification and characterization of mobile element insertion (MEI) events in gene upstream regions.
  • Integration of gene expression data from cattle and buffalo for affected genes.

Main Results:

  • A dataset comprising 13,444 deletion CNV regions was generated.
  • 11,050 merged mobile element insertion (MEI) events were identified upstream of annotated cattle genes.
  • Gene expression data was provided for genes impacted by these genomic regions.

Conclusions:

  • The presented dataset highlights significant genomic differences between water buffalo and cattle.
  • This data is crucial for functional annotation of genes potentially linked to phenotypic variations.
  • Public accessibility of this dataset will enable further research into water buffalo and cattle genetics.