Baboon Development

From Embryology

Introduction

Papio anubis (Olive baboon), Papio cynocephalus (Yellow baboon), Papio hamadryas (hamadryas baboon), Papio ursinus (Chacma baboon), Papio papio (Guinea baboon)


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Some Recent Findings

  • Tracking development of the corpus callosum (CC) in fetal and early postnatal baboons using magnetic resonance imaging[1] "Developmental changes in total CC area and its subdivisions were examined across the antenatal (weeks 17 - 26 of 28 weeks total gestation) and early postnatal (to week 32) period in baboons (Papio hamadryas anubis). Thirteen fetal and sixteen infant baboons were studied using high-resolution MRI. During the period of primary gyrification, the total area of the CC increased by a magnitude of five. By postnatal week 32, the total CC area attained only 51% of the average adult area. CC subdivisions showed non-uniform increases in area, throughout development. The splenium showed the most maturation by postnatal week 32, attaining 55% of the average adult value. The subdivisions of the genu and anterior midbody showed the least maturation by postnatal week 32, attaining 50% and 49% of the average adult area. Thus, the CC of baboons shows continued growth past the postnatal period. These age-related changes in the developing baboon CC are consistent with the developmental course in humans."
  • Application of Carnegie stages of development to unify human and baboon ultrasound findings early in pregnancy[2] "The objective of this study was to determine if very early ultrasonographic measurements obtained from human and baboon are comparable. For this purpose, the gestational, amniotic and yolk sacs, embryonic crown rump length (CRL) and heart rate were measured ultrasonographically between 35 and 47 days from the mean day of a three-day mating period in baboons (n=18) and between 42 to 58 days from fertilization as calculated from the CRL measurements in human pregnancies (n=82). ...The findings that embryonic CRL, extra-embryonic space and heart rate are very similar between the 17th and 23rd Carnegie developmental stages make the baboon a promising surrogate of human pregnancy for investigations using celocentesis."
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Taxon

Taxonomy ID: 9554

Genbank common name: baboon

Inherited blast name: primate

Rank: genus

Genetic code: Translation table 1 (Standard)

Mitochondrial genetic code: Translation table 2 (Vertebrate Mitochondrial)

Lineage ( full ) root; cellular organisms; Eukaryota; Opisthokonta; Metazoa; Eumetazoa; Bilateria; Coelomata; Deuterostomia; Chordata; Craniata; Vertebrata; Gnathostomata; Teleostomi; Euteleostomi; Sarcopterygii; Tetrapoda; Amniota; Mammalia; Theria; Eutheria; Euarchontoglires; Primates; Haplorrhini; Simiiformes; Catarrhini; Cercopithecoidea; Cercopithecidae; Cercopithecinae; Papio


Links: Taxonomy Browser Papio

Development Overview

References

  1. <pubmed>22253660</pubmed>
  2. <pubmed>17561331</pubmed>

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Cite this page: Hill, M.A. (2019, September 19) Embryology Baboon Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Baboon_Development

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G