Paragonimus Westermani: Difference between revisions

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==Genome Structure==
==Genome Structure==


Describe the size and content of the genome. How many chromosomes?  Circular or linear?  Other interesting features?  What is known about its sequence?
The genome of P. Westermani is one of the largest among known pathogens with a size of 1.1 Gb. Despite the medical and economic importance of these parasites, no known genome sequence is available for any Paragonimus. A small sequence of about 84% of the total genome was able to constructed from researchers at University of Queensland. From this partial sequence, researchers discovered that Paragonimis’s genome contained around 12,852 protein coding genes, showing high similarity with related trematode species. P. Westermani’s genome has a high proportion (45%) of repeat-derived DNA. This sequence revealed a singular, high-quality circularized 20.6 kb contig. This contig consisted of a region of non-coding repetitive DNA, and three distinct repeat units. This highlights that this region is highly polymorphic and can even be used in single worm isolates.
 


==Cell Structure, Metabolism and Life Cycle==
==Cell Structure, Metabolism and Life Cycle==

Revision as of 19:10, 16 November 2022

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Classification

Eukaryota; Platyhelminthes; Trematoda; Plagiorchiida; Troglotrematidae


Species

Platyhelminthes Paragonimus Westermani

Description and Significance

Paragonimus Westermani is a part of the Paragonimus species which are hermaphroditic parasitic lung flukes. These leaf-shaped flatworms contain both male and female reproductive organs, structures, and tissues. These flukes are endemic to Southeast Asia, South America, and South Africa. They are rare in North America and Europe. These flukes infect humans who ingest undercooked crabs or crayfish that contain the Paragonimus Westermani parasite. This is significant for the southern portion of countries where crab and crayfish are endemic and have a prominent role in the food web and economy.

Genome Structure

The genome of P. Westermani is one of the largest among known pathogens with a size of 1.1 Gb. Despite the medical and economic importance of these parasites, no known genome sequence is available for any Paragonimus. A small sequence of about 84% of the total genome was able to constructed from researchers at University of Queensland. From this partial sequence, researchers discovered that Paragonimis’s genome contained around 12,852 protein coding genes, showing high similarity with related trematode species. P. Westermani’s genome has a high proportion (45%) of repeat-derived DNA. This sequence revealed a singular, high-quality circularized 20.6 kb contig. This contig consisted of a region of non-coding repetitive DNA, and three distinct repeat units. This highlights that this region is highly polymorphic and can even be used in single worm isolates.

Cell Structure, Metabolism and Life Cycle

Interesting features of cell structure; how it gains energy; what important molecules it produces.


Ecology and Pathogenesis

Habitat; symbiosis; biogeochemical significance; contributions to environment.

If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.


References

[Sample reference] Takai, K., Sugai, A., Itoh, T., and Horikoshi, K. "Palaeococcus ferrophilus gen. nov., sp. nov., a barophilic, hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney". International Journal of Systematic and Evolutionary Microbiology. 2000. Volume 50. p. 489-500.


Author

Page authored by _____, student of Prof. Bradley Tolar at UNC Wilmington.