Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
External morphology of the cycliophoran dwarf male: a comparative study of Symbion pandora and S. americanus. / Neves, Ricardo C.; Cunha, Marina R.; Funch, Peter et al.
In: Helgoland Marine Research, Vol. 64, 2010, p. 257-262.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - External morphology of the cycliophoran dwarf male: a comparative study of Symbion pandora and S. americanus
AU - Neves, Ricardo C.
AU - Cunha, Marina R.
AU - Funch, Peter
AU - Wanninger, Andreas Wilhelm Georg
AU - Kristensen, Reinhardt Møbjerg
N1 - Paper id:: DOI 10.1007/s10152-010-0204-5
PY - 2010
Y1 - 2010
N2 - Cycliophora is a recently described phylum to which only two species have been assigned so far, Symbionpandora and S. americanus. The cycliophoran life cycle is complex and alternates between asexual and sexual stages.Although not recognized as an entirely independent freeswimming stage when the phylum was first described, thedwarf male has a remarkably complex bodyplan albeit its very small size (approx. 30–40 lm in length). Aiming toincrease the knowledge on the gross morphology of the cycliophoran dwarf male, specimens from S. pandora andS. americanus were analyzed by scanning electron microscopy. In both species, anterior and ventral ciliatedfields, as well as paired lateral sensorial organs, were identified, thus confirming previous observations. However,new details are described herein such as the penial pouch that encloses the penis. We compare our findings onboth Symbion species with the data currently available on other metazoan dwarf males.
AB - Cycliophora is a recently described phylum to which only two species have been assigned so far, Symbionpandora and S. americanus. The cycliophoran life cycle is complex and alternates between asexual and sexual stages.Although not recognized as an entirely independent freeswimming stage when the phylum was first described, thedwarf male has a remarkably complex bodyplan albeit its very small size (approx. 30–40 lm in length). Aiming toincrease the knowledge on the gross morphology of the cycliophoran dwarf male, specimens from S. pandora andS. americanus were analyzed by scanning electron microscopy. In both species, anterior and ventral ciliatedfields, as well as paired lateral sensorial organs, were identified, thus confirming previous observations. However,new details are described herein such as the penial pouch that encloses the penis. We compare our findings onboth Symbion species with the data currently available on other metazoan dwarf males.
KW - Ringbærere
KW - Sexual reproduction
KW - Life cycle
KW - Scanning electron microscopy
KW - Spiralia
KW - Lophotrochozoa
KW - Cycliophora
M3 - Journal article
VL - 64
SP - 257
EP - 262
JO - Helgoland Marine Research
JF - Helgoland Marine Research
SN - 1438-387X
ER -