Observations on germ band development in the cellar spider Pholcus phalangioides
Observations on germ band development in the cellar spider Pholcus phalangioides
复制标题
地窖蜘蛛 Pholcus phalangioides 种带发育的观察
DOI:
10.1007/s00427-016-0562-3
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发表时间:
2016
影响因子:
2.4
通讯作者:
Prpic NM
中科院分区:
文献类型:
--
作者:
Turetzek N;Prpic NM
Most recent studies of spider embryonic development have focused on representatives of the species-rich group of entelegyne spiders (over 80 % of all extant species). Embryogenesis in the smaller spider groups, however, is less well studied. Here, we describe the development of the germ band in the spider speciesPholcus phalangioides, a representative of the haplogyne spiders that are phylogenetically the sister group of the entelegyne spiders. We show that the transition from radially symmetric embryonic anlage to the bilaterally symmetric germ band involves the accumulation of cells in the centre of the embryonic anlage (primary thickening). These cells then disperse all across the embryonic anlage. A secondary thickening of cells then appears in the centre of the embryonic anlage, and this thickening expands and forms the segment addition zone. We also confirm that the major part of the opisthosoma initially develops as a tube shaped structure, and its segments are then sequentially folded down on the yolk during inversion. This special mode of opisthosoma formation has not been reported for entelegyne spiders, but a more comprehensive sampling of this diverse group is necessary to decide whether this peculiarity is indeed lacking in the entelegyne spiders.
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影响因子:
--
作者:
Nikola;M. Schoppmeier;W. Damen
通讯作者:
W. Damen
影响因子:
10.7
作者:
Natascha Turetzek;Matthias Pechmann;Christoph Schomburg;J. Schneider;Nikola-Michael Prpic
通讯作者:
Natascha Turetzek;Matthias Pechmann;Christoph Schomburg;J. Schneider;Nikola-Michael Prpic
影响因子:
2.7
作者:
M. Zuccotti;P. Rossi;E. Fiorillo;S. Garagna;A. Forabosco;C. Redi
通讯作者:
C. Redi
DOI:
10.1007/bf02457638
发表时间:
1991-01-01
期刊:
ROUXS ARCHIVES OF DEVELOPMENTAL BIOLOGY
影响因子:
--
作者:
SANDEMAN, R;SANDEMAN, D
通讯作者:
SANDEMAN, D
DOI:
10.1101/pdb.prot5067
发表时间:
2008
期刊:
CSH protocols
影响因子:
--
作者:
Nikola;M. Schoppmeier;W. Damen
通讯作者:
W. Damen