Standard karyotype of the domestic horse (Equus caballus). Committee for standardized karyotype of Equus caballus. The Second International Conference for Standardization of Domestic Animal Karyotypes, INRA, Jouy-en Josas, France, 22nd-26th May 1989.
Abstract: The following decisions concerning the banded karyotype of the horse (Equus caballus) were made at the second International conference for Standardization of Domestic Animal Karyotypes, held at Jouy-en Josas, France, 22nd-26th May 1989: (1) numbering of the chromosomes was modified to correspond to an arrangement into only two groups (the non-acrocentrics and the acrocentrics) within which the autosomes are placed according to length alone; (2) a more compact karyotype arrangement was adopted: chromosomes 1 to 5 on the first row, 6 to 10 on the second, 11 to 13, and, at the far right, X and Y on the third row, 14 to 19 on the fourth row, chromosomes 20 to 25 on the fifth, and 26 to 31 on the sixth row; (3) the NOR-bearing horse chromosomes were identified as numbers 1, 28 and 31.
Publication Date: 1990-01-01 PubMed ID: 1976611DOI: 10.1111/j.1601-5223.1990.tb00069.xGoogle Scholar: Lookup
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- Congress
- Animal Health
- Animal Science
- Animal Studies
- Chromosomes
- Comparative Study
- Diagnosis
- Diagnostic Technique
- Disease Diagnosis
- Domestic Animals
- Equine Diseases
- Equine Health
- Equine Science
- Equine Studies
- Genetics
- Horses
- Karyotype
- Standardbred Horses
- Veterinary Care
- Veterinary Medicine
- Veterinary Research
- Veterinary Science
Summary
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This research article discusses the standardized karyotype, or structure of chromosomes, in the domestic horse (Equus caballus) as established at an international conference.
Introduction
- This abstract summarizes several decisions made regarding the karyotype classification of the domestic horse (Equus caballus) at the second International conference for Standardization of Domestic Animal Karyotypes.
- This conference was held in Jouy-en Josas, France, from 22nd to 26th May 1989.
Numbering of Chromosomes
- The conference took steps to modify how chromosomes are numbered, in order to align with a new arrangement into two groups – the non-acrocentrics and the acrocentrics.
- The autosomes were also sorted by length alone, leading to a more streamlined classification and easier reference system.
Karyotype Arrangement
- A new, more condensed arrangement for the karyotype was adopted.
- This includes chromosomes 1 to 5 on the first row, 6 to 10 on the second, 11 to 13 along with the sex chromosomes (X and Y) on the third row, 14 to 19 on the fourth, 20 to 25 on the fifth, and finally, 26 to 31 on the sixth row.
Nucleolar Organizer Regions
- The conference also managed to identify the Nucleolar Organizer Regions (NOR)-bearing horse chromosomes.
- These are chromosomes where the nucleoli, crucial for cell function, have attached during interphase and were designated as numbers 1, 28, and 31.
Implications
- This standardized karyotype for domestic horses provides a valuable tool for geneticists and researchers. It aids in identifying various genetic abnormalities and allows for more precise genetic studies.
- This standardization also has potential applications in genetic selection programs within the horse breeding industry.
Cite This Article
APA
Richer CL, Power MM, Klunder LR, McFeely RA, Kent MG.
(1990).
Standard karyotype of the domestic horse (Equus caballus). Committee for standardized karyotype of Equus caballus. The Second International Conference for Standardization of Domestic Animal Karyotypes, INRA, Jouy-en Josas, France, 22nd-26th May 1989.
Hereditas, 112(3), 289-293.
https://doi.org/10.1111/j.1601-5223.1990.tb00069.x Publication
Researcher Affiliations
- Département d'anatomie, Faculté de médecine, Université de Montréal, Canada.
MeSH Terms
- Animals
- Chromosome Banding
- Chromosomes
- Horses / genetics
- Karyotyping
- Terminology as Topic
Citations
This article has been cited 10 times.- Bugno-Poniewierska M, Raudsepp T. Horse Clinical Cytogenetics: Recurrent Themes and Novel Findings. Animals (Basel) 2021 Mar 16;11(3).
- Feng X, Jiang J, Padhi A, Ning C, Fu J, Wang A, Mrode R, Liu JF. Characterization of genome-wide segmental duplications reveals a common genomic feature of association with immunity among domestic animals. BMC Genomics 2017 Apr 12;18(1):293.
- Daneshvar Amoli A, Mohebali N, Farzaneh P, Shahzadeh Fazeli SA, Nikfarjam L, Ashouri Movasagh S, Moradmand Z, Ganjibakhsh M, Nasimian A, Izadpanah M, Vakhshiteh F, Gohari NS, Masoudi NS, Farghadan M, Mohamadi Moghanjoghi S, Khalili M, Khaledi KJ. Establishment and characterization of Caspian horse fibroblast cell bank in Iran. In Vitro Cell Dev Biol Anim 2017 Apr;53(4):337-343.
- Gosálvez J, Crespo F, Vega-Pla JL, López-Fernández C, Cortés-Gutiérrez EI, Devila-Rodriguez MI, Mezzanotte R. Shared Y chromosome repetitive DNA sequences in stallion and donkey as visualized using whole-genomic comparative hybridization. Eur J Histochem 2010 Jan 28;54(1):e2.
- Yang F, Fu B, O'Brien PC, Nie W, Ryder OA, Ferguson-Smith MA. Refined genome-wide comparative map of the domestic horse, donkey and human based on cross-species chromosome painting: insight into the occasional fertility of mules. Chromosome Res 2004;12(1):65-76.
- Bowling AT, Breen M, Chowdhary BP, Hirota K, Lear T, Millon LV, Ponce de Leon FA, Raudsepp T, Stranzinger G. International system for cytogenetic nomenclature of the domestic horse. Report of the Third International Committee for the Standardization of the domestic horse karyotype, Davis, CA, USA, 1996. Chromosome Res 1997 Nov;5(7):433-43.
- Raudsepp T, Frönicke L, Scherthan H, Gustavsson I, Chowdhary BP. Zoo-FISH delineates conserved chromosomal segments in horse and man. Chromosome Res 1996 Apr;4(3):218-25.
- Anglana M, Bertoni L, Giulotto E. Cloning of a polymorphic sequence from the nontranscribed spacer of horse rDNA. Mamm Genome 1996 Jul;7(7):539-41.
- Flack N, Hughes L, Cassens J, Enriquez M, Gebeyehu S, Alshagawi M, Hatfield J, Kauffman A, Brown B, Klaeui C, Mabrouk IF, Walls C, Yeater T, Rivas A, Faulk C. The genome of Przewalski's horse (Equus ferus przewalskii). G3 (Bethesda) 2024 Aug 7;14(8).
- Flack N, Hughes L, Cassens J, Enriquez M, Gebeyehu S, Alshagawi M, Hatfield J, Kauffman A, Brown B, Klaeui C, Mabrouk IF, Walls C, Yeater T, Rivas A, Faulk C. The genome of Przewalski's horse (Equus ferus przewalskii). bioRxiv 2024 Feb 28;.
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