Dugesia japonica

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Dugesia japonica
Two headed Dugesia japonica.jpg
Two headed D. japonica that regenerated from a trunk fragment exposed to Praziquantel.[1]
Scientific classification edit
Kingdom: Animalia
Phylum: Platyhelminthes
Order: Tricladida
Family: Dugesiidae
Genus: Dugesia
Species:
D. japonica
Binomial name
Dugesia japonica
Ichikawa & Kawakatsu, 1964

Dugesia japonica is a species of dugesiid triclad that inhabits the freshwater bodies of East Asia. Because it is under the genus Dugesia, it is also sometimes considered a type of planarian.[2]

Phylogeny[]

D. japonica position in relation with other Dugesia species after the work of Lázaro et al., 2009:[3]

 Dugesia 
 
 

 D. sicula

 
 

 D. aethiopica

 
 
 
 
 
 

 D. japonica

 
 
 

 D. ryukyuensis

 
 
 

 D. notogaea

 
 

 D. bengalensis

 
 
 
 
 
 
 

 D. subtentaculata

 
 
 

 D. gonocephala

 
 
 

 D. liguriensis

 
 
 

 D. etrusca

 
 

 D. ilvana

 
 
 
 
 
 

 D. benazzii

 
 

 D. hepta

 
 
 
 
 

Space Experimentation[]

A study was published in 2017 in which a Dugesia Japonica trunk fragment had been sent into space, and grew with two heads, one on either end of the trunk.[4] However, the influence of space conditions on this phenomenon is debated.[5]

References[]

  1. ^ Nogi T, Zhang D, Chan JD, Marchant JS (June 2009). Keiser J (ed.). "A novel biological activity of praziquantel requiring voltage-operated Ca2+ channel beta subunits: subversion of flatworm regenerative polarity". PLoS Neglected Tropical Diseases. 3 (6): e464. doi:10.1371/journal.pntd.0000464. PMC 2694594. PMID 19554083.
  2. ^ Pan HC, Fan J, Wang FF, Sun Z (March 2008). "Effect of medium Ph on population growth, asexual reproduction and activity of six enzymes of Dugesia japonica. Acta Hydrobiologica Sinica". Acta Hydr Sin Acta Hydrobiologica Sinica. 3.
  3. ^ Lázaro EM, Sluys R, Pala M, Stocchino GA, Baguñà J, Riutort M (September 2009). "Molecular barcoding and phylogeography of sexual and asexual freshwater planarians of the genus Dugesia in the Western Mediterranean (Platyhelminthes, Tricladida, Dugesiidae)". Molecular Phylogenetics and Evolution. 52 (3): 835–45. doi:10.1016/j.ympev.2009.04.022. PMID 19435604.
  4. ^ Morokuma J, Durant F, Williams KB, Finkelstein JM, Blackiston DJ, Clements T, et al. (April 2017). "Planarian regeneration in space: Persistent anatomical, behavioral, and bacteriological changes induced by space travel". Regeneration. 4 (2): 85–102. doi:10.1002/reg2.79. PMC 5469732. PMID 28616247.
  5. ^ Sluys R, Stocchino GA (August 2017). "Bipolarity in planarians is not induced by space travel". Regeneration. 4 (4): 153–155. doi:10.1002/reg2.90. PMC 5743782. PMID 29299320.
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