DescriptionParasite170144-fig16 Spermatozoon ultrastructure in Digenea, Monopisthocotylea, Polyopisthocotylea.png
English: Figure 16 of the paper.
Diagrams of spermatozoa (redrawn from Justine, 1991).
Caption adapted from original caption of figure. Diagrams were drawn from original micrographs of transverse sections. Digenea. Dorsal and ventral microtubules are present (proposed as a synapomorphy for the Cercomeridea). There are no lateral microtubules (symplesiomorphic compared with the synapomorphy for the polyopisthocotylean Monogenea). Polyopisthocotylea. Dorsal and ventral microtubules are present (synapomorphy for Cercomeridea). Note the presence of lateral microtubules (proposed as a synapomorphy for the Polyopisthocotylea). Monopisthocotylea (uniflagellate and biflagellate). Microtubules are absent from the principal region of the spermatozoon, which is interpreted as (i) the absence of dorsal and ventral microtubules, a reversal of the synapomorphy for the Cercomeridea; and (ii) the absence of lateral microtubules, the symplesiomorphic state versus the synapomorphy for the Polyopisthocotylea.
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Parasite
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DescriptionParasite170144-fig16 Spermatozoon ultrastructure in Digenea, Monopisthocotylea, Polyopisthocotylea.png
English: Figure 16 of the paper.
Diagrams of spermatozoa (redrawn from Justine, 1991).
Caption adapted from original caption of figure. Diagrams were drawn from original micrographs of transverse sections. Digenea. Dorsal and ventral microtubules are present (proposed as a synapomorphy for the Cercomeridea). There are no lateral microtubules (symplesiomorphic compared with the synapomorphy for the polyopisthocotylean Monogenea). Polyopisthocotylea. Dorsal and ventral microtubules are present (synapomorphy for Cercomeridea). Note the presence of lateral microtubules (proposed as a synapomorphy for the Polyopisthocotylea). Monopisthocotylea (uniflagellate and biflagellate). Microtubules are absent from the principal region of the spermatozoon, which is interpreted as (i) the absence of dorsal and ventral microtubules, a reversal of the synapomorphy for the Cercomeridea; and (ii) the absence of lateral microtubules, the symplesiomorphic state versus the synapomorphy for the Polyopisthocotylea.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
Parasite
This file was published in the scientific journal Parasite.
Their website states that all content of the journal including and after 2013 is published under the Creative Commons Attribution 4.0 license.