Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy
Domestic dogs ( Canis lupus familiaris ) exhibit a wide range of cranial morphologies. This diversity in skull shape is largely the result of modern selective breeding practices. This project investigates the impact of selection for facial reduction on canine neuroanatomy. Previous research has indi...
Published in: | The FASEB Journal |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1096/fasebj.2020.34.s1.09926 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1096%2Ffasebj.2020.34.s1.09926 http://onlinelibrary.wiley.com/wol1/doi/10.1096/fasebj.2020.34.s1.09926/fullpdf |
id |
crwiley:10.1096/fasebj.2020.34.s1.09926 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1096/fasebj.2020.34.s1.09926 2024-06-02T08:05:04+00:00 Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy Selba, Molly Bryson, Emily Rosenberg, Ciele DeLeon, Valerie 2020 http://dx.doi.org/10.1096/fasebj.2020.34.s1.09926 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1096%2Ffasebj.2020.34.s1.09926 http://onlinelibrary.wiley.com/wol1/doi/10.1096/fasebj.2020.34.s1.09926/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The FASEB Journal volume 34, issue S1, page 1-1 ISSN 0892-6638 1530-6860 journal-article 2020 crwiley https://doi.org/10.1096/fasebj.2020.34.s1.09926 2024-05-03T10:45:03Z Domestic dogs ( Canis lupus familiaris ) exhibit a wide range of cranial morphologies. This diversity in skull shape is largely the result of modern selective breeding practices. This project investigates the impact of selection for facial reduction on canine neuroanatomy. Previous research has indicated that the breeding for reduced faces in dogs has led to global impacts in the shape of their skull and mandible. This previous research has largely failed to consider, however, the impact of these breeding practices on the soft neuroanatomical tissue. We generated endocasts from an existing set of clinically‐obtained CT scans. This sample consists of a variety of dogs with various cranial morphologies representing four known breeds as well as a comparative sample of dogs of unknown breed. We recorded three‐dimensional coordinate data for 31 landmarks representing various gyri, sulci, and other neuroanatomical landmarks. Placing landmarks at these locations allowed us to analyze differences in shape of the endocasts. Using geometric morphometric analysis, we found that the endocast shape variance in this sample is correlated with cephalic index and as a result, it is clear that selection for facial reduction has caused a perceivable effect on canine neuroanatomy. Furthermore, we found that the majority of the shape variance in the sample was associated with olfactory anatomy. Despite this fact, when the olfactory anatomy‐associated landmarks were excluded from the sample, the rest of the brain morphology was also correlated with cephalic index. The results of this project indicate that modern breeding practices, specifically the selection for dogs with squished faces, have significantly impacted canine neuroanatomy. Article in Journal/Newspaper Canis lupus Wiley Online Library The FASEB Journal 34 S1 1 1 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Domestic dogs ( Canis lupus familiaris ) exhibit a wide range of cranial morphologies. This diversity in skull shape is largely the result of modern selective breeding practices. This project investigates the impact of selection for facial reduction on canine neuroanatomy. Previous research has indicated that the breeding for reduced faces in dogs has led to global impacts in the shape of their skull and mandible. This previous research has largely failed to consider, however, the impact of these breeding practices on the soft neuroanatomical tissue. We generated endocasts from an existing set of clinically‐obtained CT scans. This sample consists of a variety of dogs with various cranial morphologies representing four known breeds as well as a comparative sample of dogs of unknown breed. We recorded three‐dimensional coordinate data for 31 landmarks representing various gyri, sulci, and other neuroanatomical landmarks. Placing landmarks at these locations allowed us to analyze differences in shape of the endocasts. Using geometric morphometric analysis, we found that the endocast shape variance in this sample is correlated with cephalic index and as a result, it is clear that selection for facial reduction has caused a perceivable effect on canine neuroanatomy. Furthermore, we found that the majority of the shape variance in the sample was associated with olfactory anatomy. Despite this fact, when the olfactory anatomy‐associated landmarks were excluded from the sample, the rest of the brain morphology was also correlated with cephalic index. The results of this project indicate that modern breeding practices, specifically the selection for dogs with squished faces, have significantly impacted canine neuroanatomy. |
format |
Article in Journal/Newspaper |
author |
Selba, Molly Bryson, Emily Rosenberg, Ciele DeLeon, Valerie |
spellingShingle |
Selba, Molly Bryson, Emily Rosenberg, Ciele DeLeon, Valerie Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy |
author_facet |
Selba, Molly Bryson, Emily Rosenberg, Ciele DeLeon, Valerie |
author_sort |
Selba, Molly |
title |
Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy |
title_short |
Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy |
title_full |
Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy |
title_fullStr |
Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy |
title_full_unstemmed |
Selective Breeding in Domestic Dogs: How Selecting for a Short Face Impacted Canine Neuroanatomy |
title_sort |
selective breeding in domestic dogs: how selecting for a short face impacted canine neuroanatomy |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1096/fasebj.2020.34.s1.09926 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1096%2Ffasebj.2020.34.s1.09926 http://onlinelibrary.wiley.com/wol1/doi/10.1096/fasebj.2020.34.s1.09926/fullpdf |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
The FASEB Journal volume 34, issue S1, page 1-1 ISSN 0892-6638 1530-6860 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1096/fasebj.2020.34.s1.09926 |
container_title |
The FASEB Journal |
container_volume |
34 |
container_issue |
S1 |
container_start_page |
1 |
op_container_end_page |
1 |
_version_ |
1800749811593379840 |