Morphogenesis and motility of the Astyanax mexicanus gastrointestinal tract
نویسندگان
چکیده
منابع مشابه
Evolution of Space Dependent Growth in the Teleost Astyanax mexicanus
The relationship between growth rate and environmental space is an unresolved issue in teleosts. While it is known from aquaculture studies that stocking density has a negative relationship to growth, the underlying mechanisms have not been elucidated, primarily because the growth rate of populations rather than individual fish were the subject of all previous studies. Here we investigate this ...
متن کاملSpatial and temporal events in tooth development of Astyanax mexicanus
The Mexican tetra (Astyanax mexicanus), a freshwater teleost fish, is an excellent vertebrate model organism to study tooth development, specifically the spatiotemporal events related to the development of the oral and pharyngeal dentitions. In contrast to the coordinated early tooth development in the premaxilla and mandible, the maxillary teeth develop much later in life at 60 dpf. By analysi...
متن کاملRegressive Evolution in the Mexican Cave Tetra, Astyanax mexicanus
The evolutionary forces driving the reduction of eyes and pigmentation in cave-adapted animals are unknown; Darwin famously questioned the role of natural selection in eye loss in cave fishes: "As it is difficult to imagine that eyes, although useless, could be in any way injurious to animals living in darkness, I attribute their loss wholly to disuse"[1]. We studied the genetics of eye and pig...
متن کاملGenome Editing Using TALENs in Blind Mexican Cavefish, Astyanax mexicanus
Astyanax mexicanus, a teleost fish that exists in a river-dwelling surface form and multiple cave-dwelling forms, is an excellent system for studying the genetic basis of evolution. Cavefish populations, which independently evolved from surface fish ancestors multiple times, have evolved a number of morphological and behavioral traits. Quantitative trait loci (QTL) analyses have been performed ...
متن کاملConservation, development, and function of a cement gland-like structure in the fish Astyanax mexicanus.
The larvae of the fish Astyanax mexicanus transiently develop a flat and adhesive structure on the top of their heads that we have called "the casquette" (cas, meaning "hat"). We hypothesized that the cas may be a teleostean homolog of the well-studied Xenopus cement gland, despite their different positions and structures. Here we show that the cas has an ectodermal origin, secretes mucus, expr...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2018
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2018.06.004