Retinal histogenesis in an altricial avian species, the zebra finch (Taeniopygia guttata, Vieillot 1817)
(2018) In Journal of Anatomy 233(1). p.106-120- Abstract
Comparative developmental studies have shown that the retina of altricial fish and mammals is incompletely developed at birth, and that, during the first days of life, maturation proceeds rapidly. In contrast, precocial fish and mammals are born with fully differentiated retinas. Concerning birds, knowledge about retinal development is generally restricted to a single order of precocial birds, Galliformes, due to the fact that both the chicken and the Japanese quail are considered model systems. However, comparison of embryonic pre-hatchling retinal development between altricial and precocial birds has been poorly explored. The purpose of this study was to examine the morphogenesis and histogenesis of the retina in the altricial zebra... (More)
Comparative developmental studies have shown that the retina of altricial fish and mammals is incompletely developed at birth, and that, during the first days of life, maturation proceeds rapidly. In contrast, precocial fish and mammals are born with fully differentiated retinas. Concerning birds, knowledge about retinal development is generally restricted to a single order of precocial birds, Galliformes, due to the fact that both the chicken and the Japanese quail are considered model systems. However, comparison of embryonic pre-hatchling retinal development between altricial and precocial birds has been poorly explored. The purpose of this study was to examine the morphogenesis and histogenesis of the retina in the altricial zebra finch (Taeniopygia guttata, Vieillot 1817) and compare the results with those from previous studies in the precocial chicken. Several maturational features (morphogenesis of the optic vesicle and optic cup, appearance of the first differentiated neurons, the period in which the non-apical cell divisions are observable, and the emergence of the plexiform layers) were found to occur at later stages in the zebra finch than in the chicken. At hatching, the retina of T. guttata showed the typical cytoarchitecture of the mature tissue, although features of immaturity were still observable, such as a ganglion cell layer containing many thick cells, very thin plexiform layers, and poorly developed photoreceptors. Moreover, abundant mitotic activity was detected in the entire retina, even in the regions where the layering was complete. The circumferential marginal zone was very prominent and showed abundant mitotic activity. The partially undifferentiated stage of maturation at hatching makes the T. guttata retina an appropriate model with which to study avian postnatal retinal neurogenesis.
(Less)
- author
- Álvarez-Hernán, Guadalupe LU ; Sánchez-Resino, Elena ; Hernández-Núñez, Ismael ; Marzal, Alfonso LU ; Rodríguez-León, Joaquín ; Martín-Partido, Gervasio and Francisco-Morcillo, Javier
- publishing date
- 2018-07
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Animals, Animals, Newborn, Embryonic Development/physiology, Finches, Retina/cytology
- in
- Journal of Anatomy
- volume
- 233
- issue
- 1
- pages
- 106 - 120
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85044376098
- pmid:29582431
- ISSN
- 0021-8782
- DOI
- 10.1111/joa.12809
- language
- English
- LU publication?
- no
- additional info
- © 2018 Anatomical Society.
- id
- a844f800-3dec-4d00-9966-1f91cbbcac23
- date added to LUP
- 2021-12-15 14:07:16
- date last changed
- 2024-03-07 22:41:07
@article{a844f800-3dec-4d00-9966-1f91cbbcac23,
abstract = {{<p>Comparative developmental studies have shown that the retina of altricial fish and mammals is incompletely developed at birth, and that, during the first days of life, maturation proceeds rapidly. In contrast, precocial fish and mammals are born with fully differentiated retinas. Concerning birds, knowledge about retinal development is generally restricted to a single order of precocial birds, Galliformes, due to the fact that both the chicken and the Japanese quail are considered model systems. However, comparison of embryonic pre-hatchling retinal development between altricial and precocial birds has been poorly explored. The purpose of this study was to examine the morphogenesis and histogenesis of the retina in the altricial zebra finch (Taeniopygia guttata, Vieillot 1817) and compare the results with those from previous studies in the precocial chicken. Several maturational features (morphogenesis of the optic vesicle and optic cup, appearance of the first differentiated neurons, the period in which the non-apical cell divisions are observable, and the emergence of the plexiform layers) were found to occur at later stages in the zebra finch than in the chicken. At hatching, the retina of T. guttata showed the typical cytoarchitecture of the mature tissue, although features of immaturity were still observable, such as a ganglion cell layer containing many thick cells, very thin plexiform layers, and poorly developed photoreceptors. Moreover, abundant mitotic activity was detected in the entire retina, even in the regions where the layering was complete. The circumferential marginal zone was very prominent and showed abundant mitotic activity. The partially undifferentiated stage of maturation at hatching makes the T. guttata retina an appropriate model with which to study avian postnatal retinal neurogenesis.</p>}},
author = {{Álvarez-Hernán, Guadalupe and Sánchez-Resino, Elena and Hernández-Núñez, Ismael and Marzal, Alfonso and Rodríguez-León, Joaquín and Martín-Partido, Gervasio and Francisco-Morcillo, Javier}},
issn = {{0021-8782}},
keywords = {{Animals; Animals, Newborn; Embryonic Development/physiology; Finches; Retina/cytology}},
language = {{eng}},
number = {{1}},
pages = {{106--120}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Anatomy}},
title = {{Retinal histogenesis in an altricial avian species, the zebra finch (Taeniopygia guttata, Vieillot 1817)}},
url = {{http://dx.doi.org/10.1111/joa.12809}},
doi = {{10.1111/joa.12809}},
volume = {{233}},
year = {{2018}},
}