Orkide yumruları (tuber) tarımsal üretimde gün geçtikçe değerlenmekte olup, ayrıca tıbbi drog önemine sahiptir. Ekonomik değerde olan bu yumrularla ilgili ontogenik bir araştırma bulunmamıştır. Bu nedenle; çalışmada orkide yumru ontogenisinin incelenmesi amaçlanmıştır. Materyal olarak Himantoglossum robertianum stolonlarından Historesin kiti ile gömme preperatlardan mikrotom kesitleri alınmış v...

The ontogeny of thermoregulation differs among (avian) species, but in all species both neural and endocrinological processes are involved. In this review the neural processes in ontogeny of thermoregulation during the prenatal and early postnatal phase are discussed. Only in a few avian species (chicken, ducklings) the ontogeny of some important neural structures are described. In the early po...

study of the osteological development in fishes is important from fisheries, biology and aquaculture points of views. it can be used as an early bio-indicator of non-optimal rearing conditions. the caspian roach, rutilus caspicus is a native cyprinid fish of the caspian sea that its artificial propagation has fulfilled in hatcheries to recruit its natural stocks. hence, this study was conducted...

Anurognathids are a clade of non-pterodactyloid pterosaurs with generally conservative morphology, but specializations as insectivores. They represented by disparate collection adult and juvenile specimens that range in wingspan from ∼0.24–1 m. There have been concerns about the extent to which ontogenetic variation might affect phylogenetic inference, indeed how aspects their ontogeny relate d...

Understanding the role of the developmental pathways in shaping phenotypic diversity allows appreciating in full the processes influencing and constraining morphological change. Podarcis lizards demonstrate extraordinary morphological variability that likely originated in short evolutionary time. Using geometric morphometrics and a broad suite of statistical tests, we explored the role of devel...

One hundred and fifty years after the discovery of Neanderthals, it is held that this morphologically and genetically distinct human species does not differ from modern Homo sapiens in its craniofacial ontogenetic trajectory after the early post-natal period. This is striking given the evident morphological differences between these species, since it implies that all of the major differences ar...