FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2068183775> ?p ?o ?g. }

• W2068183775 abstract "Abstract At the time of hatching, pigment is restricted to black spots on a white background in the Ancona in comparison to the fully pigmented pattern of the Brown Leghorn, which serves as a standard of reference for feather coloration. During successive molts in the Ancona, the pigmented areas are extended until every feather follicle is producing pigment in the adult. Retarded migration of pigment cells is the simplest hypothesis that accounts for the development of the transitory piebald spotted pattern of the Ancona. That hypothesis was tested in the present investigation. Migration of melanoblasts in Ancona and Brown Leghorn embryos was traced at critical stages from stage 20 to time of hatching by transplanting blocks of tissue from different levels between the neural crest and the tip of the wing bud to White Leghorn host embryos. Results indicated that melanoblasts began to invade the wing buds of Brown Leghorn embryos at stage 21 and that all wing buds had received them by stage 23. Melanoblasts rarely invaded the distal 0.5 mm of the wing bud until after stage 32 in the Brown Leghorn. However, by stage 36 even the most distal primary follicle had received melanoblasts. Results for the Ancona were not as consistent. Although melanoblasts began entering the wing bud in stage 22, some of the wing buds still had not received them even by stage 24. Pigment cells apparently had not advanced beyond primary follicle no. 2 by stage 36 in the Ancona. Differentiated pigment granules and pigment deposits were observed in the skin overlying the mesencephalon of Ancona embryos at stages 20 and 23, respectively. There was no evidence of pigment granules or deposits in the same region of Brown Leghorn embryos at stage 23. Precocious differentiation and retarded proliferation of pigment cells appear to be correlated in the Ancona. At the time of hatching, the down and skin of the wing of the Ancona are pigmented in two spots, one having its center located on the dorsoposterior side near secondary follicle no. 8 and the other located just proximal to the base of digit II. In 8 cases where more than one graft was taken from individual Ancona wing buds, the results indicated that very few primordial melanoblasts migrated into the wing buds, possibly only one to the center of each spot. As a result of this study the following proposals are made. Each pigmented spot in the wing of the Ancona chick represents the settling point of a single primordial melanoblast from which pigment cells are proliferated. The same two settling points or centers may exist in fully pigmented as well as piebald spotted breeds. Early differentiation of melanoblasts may be the cause of slow proliferation and retarded migration of pigment cells from the centers in the Ancona, in comparison to normal differentiation, proliferation, and migration in the Brown Leghorn." @default.
• W2068183775 created "2016-06-24" @default.
• W2068183775 creator A5010546411 @default.
• W2068183775 date "1968-08-01" @default.
• W2068183775 modified "2023-09-25" @default.
• W2068183775 title "Development of transitory piebald spotted and completely pigmented patterns in the chicken" @default.
• W2068183775 cites W1197475879 @default.
• W2068183775 cites W1792193020 @default.
• W2068183775 cites W1977217605 @default.
• W2068183775 cites W1984892569 @default.
• W2068183775 cites W1990094741 @default.
• W2068183775 cites W1991184425 @default.
• W2068183775 cites W1991514462 @default.
• W2068183775 cites W1998369353 @default.
• W2068183775 cites W2003298106 @default.
• W2068183775 cites W2010358476 @default.
• W2068183775 cites W2022949023 @default.
• W2068183775 cites W2037634462 @default.
• W2068183775 cites W2040800241 @default.
• W2068183775 cites W2045649754 @default.
• W2068183775 cites W2052398968 @default.
• W2068183775 cites W2057221552 @default.
• W2068183775 cites W2057298564 @default.
• W2068183775 cites W2070560929 @default.
• W2068183775 cites W2076805640 @default.
• W2068183775 cites W2082089555 @default.
• W2068183775 cites W2092380504 @default.
• W2068183775 cites W2094952147 @default.
• W2068183775 cites W2134916671 @default.
• W2068183775 cites W2140034535 @default.
• W2068183775 cites W2150873396 @default.
• W2068183775 cites W2295394486 @default.
• W2068183775 cites W2300827022 @default.
• W2068183775 cites W2303725703 @default.
• W2068183775 cites W4237575993 @default.
• W2068183775 cites W4240870898 @default.
• W2068183775 doi "https://doi.org/10.1016/0012-1606(68)90039-0" @default.
• W2068183775 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/5672878" @default.
• W2068183775 hasPublicationYear "1968" @default.
• W2068183775 type Work @default.
• W2068183775 sameAs 2068183775 @default.
• W2068183775 citedByCount "10" @default.
• W2068183775 crossrefType "journal-article" @default.
• W2068183775 hasAuthorship W2068183775A5010546411 @default.
• W2068183775 hasConcept C104317684 @default.
• W2068183775 hasConcept C105702510 @default.
• W2068183775 hasConcept C121332964 @default.
• W2068183775 hasConcept C127413603 @default.
• W2068183775 hasConcept C127745971 @default.
• W2068183775 hasConcept C146978453 @default.
• W2068183775 hasConcept C178790620 @default.
• W2068183775 hasConcept C185592680 @default.
• W2068183775 hasConcept C18903297 @default.
• W2068183775 hasConcept C196843134 @default.
• W2068183775 hasConcept C2777744765 @default.
• W2068183775 hasConcept C2910540838 @default.
• W2068183775 hasConcept C48880136 @default.
• W2068183775 hasConcept C54355233 @default.
• W2068183775 hasConcept C56273599 @default.
• W2068183775 hasConcept C59822182 @default.
• W2068183775 hasConcept C62520636 @default.
• W2068183775 hasConcept C64584667 @default.
• W2068183775 hasConcept C74167732 @default.
• W2068183775 hasConcept C86803240 @default.
• W2068183775 hasConcept C90856448 @default.
• W2068183775 hasConcept C95444343 @default.
• W2068183775 hasConcept C97257150 @default.
• W2068183775 hasConceptScore W2068183775C104317684 @default.
• W2068183775 hasConceptScore W2068183775C105702510 @default.
• W2068183775 hasConceptScore W2068183775C121332964 @default.
• W2068183775 hasConceptScore W2068183775C127413603 @default.
• W2068183775 hasConceptScore W2068183775C127745971 @default.
• W2068183775 hasConceptScore W2068183775C146978453 @default.
• W2068183775 hasConceptScore W2068183775C178790620 @default.
• W2068183775 hasConceptScore W2068183775C185592680 @default.
• W2068183775 hasConceptScore W2068183775C18903297 @default.
• W2068183775 hasConceptScore W2068183775C196843134 @default.
• W2068183775 hasConceptScore W2068183775C2777744765 @default.
• W2068183775 hasConceptScore W2068183775C2910540838 @default.
• W2068183775 hasConceptScore W2068183775C48880136 @default.
• W2068183775 hasConceptScore W2068183775C54355233 @default.
• W2068183775 hasConceptScore W2068183775C56273599 @default.
• W2068183775 hasConceptScore W2068183775C59822182 @default.
• W2068183775 hasConceptScore W2068183775C62520636 @default.
• W2068183775 hasConceptScore W2068183775C64584667 @default.
• W2068183775 hasConceptScore W2068183775C74167732 @default.
• W2068183775 hasConceptScore W2068183775C86803240 @default.
• W2068183775 hasConceptScore W2068183775C90856448 @default.
• W2068183775 hasConceptScore W2068183775C95444343 @default.
• W2068183775 hasConceptScore W2068183775C97257150 @default.
• W2068183775 hasLocation W20681837751 @default.
• W2068183775 hasLocation W20681837752 @default.
• W2068183775 hasOpenAccess W2068183775 @default.
• W2068183775 hasPrimaryLocation W20681837751 @default.
• W2068183775 hasRelatedWork W1980715433 @default.
• W2068183775 hasRelatedWork W2027232567 @default.
• W2068183775 hasRelatedWork W2046971378 @default.
• W2068183775 hasRelatedWork W2116427999 @default.
• W2068183775 hasRelatedWork W2333732184 @default.
• W2068183775 hasRelatedWork W2412501707 @default.

• next