Draft Genome Sequence of Megasphaera sp. Strain DJF_B143, an Isolate from Pig Hindgut Unable to Produce Skatole

Xiaoqiong Li1, Ian P G Marshall2, Lars Schreiber2

  • 1Department of Animal Science, Aarhus University, Tjele, Denmark Xiaoqiong.Li@anis.au.dk.

Genome Announcements
|March 8, 2016
PubMed

Insights

Megasphaera species are key pig hindgut microbes. This study presents the genome of Megasphaera sp. DJF_B143, a strain that does not produce the boar taint compound skatole.

Area of Science:

  • Microbiology
  • Genomics
  • Animal Science

Background:

  • Megasphaera species are abundant in the pig hindgut.
  • These bacteria are known butyrate producers, influencing gut health.
  • Some Megasphaera isolates produce skatole, a compound responsible for boar taint.

Purpose of the Study:

  • To provide a draft genome sequence of a specific pig hindgut Megasphaera isolate.
  • To characterize an isolate that does not produce skatole, offering a contrast to known skatole-producing strains.
  • To contribute genomic resources for studying pig gut microbiota and boar taint.

Main Methods:

  • Isolation of Megasphaera sp. DJF_B143 from pig hindgut.
  • Whole-genome sequencing and assembly.
  • Bioinformatic analysis of the draft genome.

Main Results:

  • A 2.58-Mbp draft genome for Megasphaera sp. DJF_B143 was generated.
  • Genomic analysis confirmed the absence of key genes associated with skatole production.
  • This isolate represents a non-skatole producing strain within the Megasphaera genus.

Conclusions:

  • The genome of Megasphaera sp. DJF_B143 provides valuable insights into the genetic makeup of pig hindgut Megasphaera.
  • This non-skatole producing strain can serve as a reference for comparative genomics.
  • Further research can utilize this genome to understand the factors influencing skatole production in related species.

Related Concept Videos

Bacterial Phylum Spirochaetes01:30

Bacterial Phylum Spirochaetes

Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased...
1.1K
Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
50.4K
DNA Bacteriophages01:26

DNA Bacteriophages

Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...
1.4K
Deep Sea Microbial Ecology01:18

Deep Sea Microbial Ecology

The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches...
12