Results 41 to 50 of about 816 (171)
Advanced Science, Volume 13, Issue 5, 27 January 2026.This study shows that ERK/PKA upregulation in mammalian cortical radial glia (RGs) sustains neurogenesis and suppresses gliogenesis. YAP/TAZ activation promotes ependymal cell formation, while enhanced SHH‐SMO signaling induces astrocyte, oligodendrocytes, and olfactory bulb interneuron generation.
Zhuangzhi Zhang +13 more
wiley +1 more source
Complete mitochondrial genomes defining two distinct lancelet species in the West Pacific Ocean
, 2009 For many years, the lancelet Branchiostoma belcheri had been considered a widely distributed species throughout the West Pacific Ocean. Several recent studies divided it into two separate species based on significant morphological and genetic divergence.
Zhong, Jing +6 more
core +1 more source
The lancelets [Cephalochordata, Amphioxi] of Lucena Anchorage, Quezon, Philippines
, 1978 Two species of lancelets (amphioxi) are described from Philippine waters: Branchiostoma belcheri and Epigonichthys cultellus. The characters suited for numerical evaluation in both species were examined statistically.
Carandang, N. C.
core +1 more source
Congenital Anomalies, Volume 66, Issue 1, January/February 2026.ABSTRACT Teratology, the study of congenital anomalies, has developed from a descriptive discipline into a mechanistic science focused on the proximate causes of developmental defects, meaning how such anomalies arise during development. However, a comprehensive understanding requires not only this mechanistic insight but also an evolutionary ...
Tetsuo Kon
wiley +1 more source
Molecular Ecology, Volume 34, Issue 20, October 2025.ABSTRACT The molecular basis of sex determination (SD), while being extensively studied in model organisms, remains poorly understood in many animal groups. Bivalves, a diverse class of molluscs with a variety of reproductive modes, represent an ideal yet challenging clade for investigating SD and the evolution of sexual systems.
Filippo Nicolini +4 more
wiley +1 more source
Taxonomy of Genus Branchiostoma in Xiamen Waters and Continuous Breeding of Two Lancelets in the Laboratory [PDF]
, 2007 文昌鱼是现存无脊椎动物中与脊椎动物直接祖先很相似的一个类群，在动物进化史上占据重要的地位，是进化发育生物学和比较基因组学研究领域的重要模式生物。厦门曾经以盛产文昌鱼并形成世界上唯一的文昌鱼渔场而闻名于世，厦门文昌鱼自1932年被鉴定为白氏文昌鱼BranchiostomabelcheriGray以来一直被认为是同一种，直到2005年应用分子生物学技术进行文昌鱼物种鉴定时，才发现其中包含有2个独立物种，即白氏文昌鱼B.belcheri和日本文昌鱼B.japonicum。本研究详细观察了这2种文昌鱼大量标本 ...
张秋金
core
Genetic Relationships among Lancelet Populations in Seto Inland Sea Inferred from Mitochondrial DNA Sequences [PDF]
, 2013 Genetic relationships were examined among a total of 74 lancelets, Branchiostoma japonicum (Willey 1897), collected at 16 stations in the Seto Inland Sea on the basis of the sequence of the COI region of mitochondrial DNA.
Imabayashi, Hiromichi +3 more
core +1 more source
Palaeontology, Volume 68, Issue 5, September/October 2025.Abstract A fundamental assumption of hypothesis‐driven decay experiments is that, during decay, the loss of anatomy follows a sequence broadly controlled by the intrinsic compositional properties of tissues. Recent work investigating the succession of postmortem endogenous microbial communities (thanatomicrobiome) challenges this assumption in that the
Thomas Clements +8 more
wiley +1 more source
Molecular systematics and genetics diversity of two lancelets in China Seas [PDF]
, 2009 文昌鱼由于其独特的系统进化地位，而被广泛用作研究分子进化、胚胎发育和脊椎动物起源的关键模式生物。从分子水平开展对文昌鱼的研究大多集中在基因/基因家族的演化等方面，对该类动物的起源进化、系统发育和遗传多样性的研究还远远不够深入。 在本研究中，我们测定了厦门分布的日本文昌鱼线粒体基因组全序列，结合本实验室先前测得的白氏文昌鱼mtDNA全序列，与已报道的来自日本和中国其它海区的样本数据进行了比较，进一步确证厦门海域的鳃口文昌鱼属有2个独立的物种 ...
钟婧
core
The amphioxus genome and the evolution of the chordate karyotype. [PDF]
, 2008 Lancelets ('amphioxus') are the modern survivors of an ancient chordate lineage, with a fossil record dating back to the Cambrian period. Here we describe the structure and gene content of the highly polymorphic approximately 520-megabase genome of the ...
Bronner-Fraser, M +155 more
core +1 more source