A PCR survey of Hox genes in the myzostomid Myzostoma cirriferum [0.03%]
柄海盘虫(Myzostoma cirriferum)HOX基因的PCR检测调查研究
Christoph Bleidorn,Deborah Lanterbecq,Igor Eeckhaut et al.
Christoph Bleidorn et al.
Using degenerate primers, we were able to identify seven Hox genes for the myzostomid Myzostoma cirriferum. The recovered fragments belong to anterior class (Mci_lab, Mci_pb), central class (Mci_Dfd, Mci_Lox5, Mci_Antp, Mci_Lox4), and poste...
Extremely small genomes in two unrelated dipteran insects with shared early developmental traits [0.03%]
两种无关联的双翅目昆虫具有相同的早期发育特征且基因组极小
Urs Schmidt-Ott,Ab Matteen Rafiqi,Klaus Sander et al.
Urs Schmidt-Ott et al.
We discovered extremely small genomes (1C ~100 Mb) in the dipteran insects Coboldia fuscipes (Scatopsidae) and Psychoda cinerea (Psychodidae). The small genomes of these species cannot be explained by a fast developmental rate, which has be...
Spatiotemporal distribution patterns of oligosaccharides during early embryogenesis in the starfish Patiria pectinifera [0.03%]
日本海盘车早期胚胎发生过程中寡糖的时空分布规律
Takuya Doihara,Yuji Miguchi,Kyojy Miyawaki et al.
Takuya Doihara et al.
To examine embryogenic mechanisms in the starfish Patiria (Asterina) pectinifera, we histochemically analyzed several larval stages using Alcian Blue (AB, which stains acidic mucins), Periodic Acid Schiff (PAS, which stains neutral mucins),...
Appendage patterning in the South American bird spider Acanthoscurria geniculata (Araneae: Mygalomorphae) [0.03%]
南美鸟蛛属的一种附节图案（蜘蛛目：原始蛛亚目）
Matthias Pechmann,Nikola-Michael Prpic
Matthias Pechmann
Pattern formation by the genes dachshund (dac), Distal-less (Dll), extradenticle (exd) and homothorax (hth) in spider appendages has been studied previously only in members of the higher spiders (Araneomorphae). In order to study the divers...
Altered expression of wheat AINTEGUMENTA homolog, WANT-1, in pistil and pistil-like transformed stamen of an alloplasmic line with Aegilops crassa cytoplasm [0.03%]
异源胞质小麦AINTEGUMENTA同源基因WANT-1在雌蕊及转化的雄蕊中的表达变化
Kota Mizumoto,Hitoshi Hatano,Chizuru Hirabayashi et al.
Kota Mizumoto et al.
Homeotic transformation of stamens into pistil-like structures, called pistillody, has been reported in some alloplasmic common wheat lines with Aegilops crassa cytoplasm. An alloplasmic line of Chinese Spring ditelosomic 7BS (CSdt7BS) with...
The SCPP gene repertoire in bony vertebrates and graded differences in mineralized tissues [0.03%]
硬骨脊椎动物的SCPP基因家族及其矿化组织的分级差异
Kazuhiko Kawasaki
Kazuhiko Kawasaki
The vertebrate tooth is covered with enamel in most sarcopterygians or enameloid in chondrichthyans and actinopterygians. The evolutionary relationship among these two tissues, the hardest tissue in the body, and other mineralized tissues h...
Expression of exogenous fluorescent proteins in early freshwater pond snail embryos [0.03%]
异源荧光蛋白在早期淡水螺胚胎中的表达
Masanori Abe,Miho Shimizu,Reiko Kuroda
Masanori Abe
We have for the first time succeeded in expressing in vitro-synthesized mRNAs in both the sinistral and the dextral Lymnaea stagnalis early embryos by microinjecting the mRNAs into the eggs before the first polar body stage. Translation of ...
Sam Dupont,William Thorndyke,Michael C Thorndyke et al.
Sam Dupont et al.
Comparative features of the development of the larval nervous system of ophiuroids have the potential for resolving aspects of echinoderm evolution. In Amphiura filiformis serotonergic neural progenitors appear in the animal plate of late g...
Sharon B Minsuk,F Rudolf Turner,Mary E Andrews et al.
Sharon B Minsuk et al.
Adult echinoderms possess a highly diverged, pentaradial body plan. Developmental mechanisms underlying this body plan are completely unknown, but are critical in understanding how echinoderm pentamery evolved from bilateral ancestors. Thes...
Conserved and novel gene expression between regeneration and asexual fission in Nematostella vectensis [0.03%]
Nematostella vectensis中再生和无性裂殖之间保守和新颖的基因表达关系
Patrick M Burton,John R Finnerty
Patrick M Burton
Due to work in model systems (e.g., flies and mice), the molecular mechanisms of embryogenesis are known in exquisite detail. However, these organisms are incapable of asexual reproduction and possess limited regenerative abilities. Thus, t...