spermatogonium

Planarian Anatomy Ontology Class Overview

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NAME:

  spermatogonium


DEFINITON:

  An euploid male germ cell of an early stage of spermatogenesis. In planaria, the gh4+ stem cell daughter exiting the niche undergoes three rounds of transit amplifying division with incomplete cytokinesis prior to transitioning to terminal differentiation.


TERM CITATIONS:


TERM ID:

  PLANA:0000220


ABOUT THIS TERM:

spermatogonium

  ↳is a anatomical entity, male germ cell, material entity and progenitor cell

  ↳contained in tail, copulatory region, posterior compartment of the whole animal, parapharyngeal region, prepharyngeal region, dorsal region of the whole animal and anterior region of the whole animal

  ↳develops from spermatogonial stem cell

  ↳existence overlaps juvenile and adult hermaphrodite

  ↳existence starts during or after juvenile

  ↳part of testis

  ↳specific_to Smed sexual biotype


  → spermatocyte develops from spermatogonium




COMMENTS:


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