Comparative ultrastructure of the radiolar crown in Sabellida (Annelida)
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Comparative ultrastructure of the radiolar crown in Sabellida (Annelida). / Tilic, Ekin; Rouse, Greg W.; Bartolomaeus, Thomas.
In: Zoomorphology, Vol. 140, No. 1, 2021, p. 27-45.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Comparative ultrastructure of the radiolar crown in Sabellida (Annelida)
AU - Tilic, Ekin
AU - Rouse, Greg W.
AU - Bartolomaeus, Thomas
PY - 2021
Y1 - 2021
N2 - Three major clades of tube-dwelling annelids are grouped within Sabellida: Fabriciidae, Serpulidae and Sabellidae. The most characteristic feature of these animals is the often spectacularly colorful and flower-like radiolar crown. Holding up such delicate, feathery appendages in water currents requires some sort of internal stabilization. Each of the above-mentioned family-ranked groups has overcome this problem in a different way. Herein we describe the arrangement, composition and ultrastructure of radiolar tissues for fabriciids, sabellids and serpulids using transmission electron microscopy, histology and immunohistochemistry. Our sampling of 12 species spans most of the phylogenetic lineages across Sabellida and, from within Sabellidae, includes representatives of Myxicolinae, Sabellinae and the enigmatic sabellin Caobangia. We further characterize the ultrastructure of the chordoid cells that make up the supporting cellular axis in Sabellidae and discuss the evolution of radiolar tissues within Sabellida in light of the recently published phylogeny of the group.
AB - Three major clades of tube-dwelling annelids are grouped within Sabellida: Fabriciidae, Serpulidae and Sabellidae. The most characteristic feature of these animals is the often spectacularly colorful and flower-like radiolar crown. Holding up such delicate, feathery appendages in water currents requires some sort of internal stabilization. Each of the above-mentioned family-ranked groups has overcome this problem in a different way. Herein we describe the arrangement, composition and ultrastructure of radiolar tissues for fabriciids, sabellids and serpulids using transmission electron microscopy, histology and immunohistochemistry. Our sampling of 12 species spans most of the phylogenetic lineages across Sabellida and, from within Sabellidae, includes representatives of Myxicolinae, Sabellinae and the enigmatic sabellin Caobangia. We further characterize the ultrastructure of the chordoid cells that make up the supporting cellular axis in Sabellidae and discuss the evolution of radiolar tissues within Sabellida in light of the recently published phylogeny of the group.
KW - TEM
KW - Histology
KW - Fabriciidae
KW - Serpulidae
KW - Sabellidae
KW - WORMS ANNELIDA
KW - POLYCHAETA
KW - CARTILAGE
KW - FABRICIINAE
KW - SPERM
KW - EYES
U2 - 10.1007/s00435-020-00509-x
DO - 10.1007/s00435-020-00509-x
M3 - Journal article
VL - 140
SP - 27
EP - 45
JO - Zoomorphologie
JF - Zoomorphologie
SN - 0340-6725
IS - 1
ER -
ID: 257936949