Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves
Abstract The ultimate goal of the Mexican gray wolf Canis lupus baileyi captive management program is reintroduction of healthy individuals into wild habitats. To this end, zoo population managers work to provide not only for the physical well‐being but also for the genetic health of these animals....
Published in: | Animal Conservation |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2007
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1469-1795.2007.00116.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-1795.2007.00116.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-1795.2007.00116.x |
id |
crwiley:10.1111/j.1469-1795.2007.00116.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1469-1795.2007.00116.x 2024-09-15T18:01:22+00:00 Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves Asa, C. Miller, P. Agnew, M. Rebolledo, J. A. R. Lindsey, S. L. Callahan, M. Bauman, K. 2007 http://dx.doi.org/10.1111/j.1469-1795.2007.00116.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-1795.2007.00116.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-1795.2007.00116.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Animal Conservation volume 10, issue 3, page 326-331 ISSN 1367-9430 1469-1795 journal-article 2007 crwiley https://doi.org/10.1111/j.1469-1795.2007.00116.x 2024-08-09T04:23:37Z Abstract The ultimate goal of the Mexican gray wolf Canis lupus baileyi captive management program is reintroduction of healthy individuals into wild habitats. To this end, zoo population managers work to provide not only for the physical well‐being but also for the genetic health of these animals. However, the very limited genetic founder base, exacerbated by breeding within three distinct lineages, resulted in very high coefficients of inbreeding. Because support for measurable levels of inbreeding depression in the captive wolf population, as defined by reductions in common fitness measures such as juvenile survival or reproductive success, has been weak, we investigated the potential effects on male reproductive capacity. We analyzed semen samples from wolves from all three lineages and compared them with samples from subsequent lineage crosses and from generic gray wolves. We not only found a significant effect of inbreeding on sperm quality but we related both inbreeding and sperm quality to reproductive success. Samples from male offspring of lineage crosses, with inbreeding coefficients of zero were similar in quality to those from generic gray wolves. However, samples from a limited number of offspring from back‐crosses were of extremely poor quality. Although it is reassuring that sperm quality was so much improved in male offspring of lineage crosses, the concomitant reduction in inbreeding coefficient does not eliminate the potentially deleterious alleles. Our results demonstrate that sperm quality is an important indicator of fertility and reproductive success in Mexican wolves. In addition, our data lend further support to the presence of inbreeding depression in this taxon. Article in Journal/Newspaper Canis lupus gray wolf Wiley Online Library Animal Conservation 10 3 326 331 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The ultimate goal of the Mexican gray wolf Canis lupus baileyi captive management program is reintroduction of healthy individuals into wild habitats. To this end, zoo population managers work to provide not only for the physical well‐being but also for the genetic health of these animals. However, the very limited genetic founder base, exacerbated by breeding within three distinct lineages, resulted in very high coefficients of inbreeding. Because support for measurable levels of inbreeding depression in the captive wolf population, as defined by reductions in common fitness measures such as juvenile survival or reproductive success, has been weak, we investigated the potential effects on male reproductive capacity. We analyzed semen samples from wolves from all three lineages and compared them with samples from subsequent lineage crosses and from generic gray wolves. We not only found a significant effect of inbreeding on sperm quality but we related both inbreeding and sperm quality to reproductive success. Samples from male offspring of lineage crosses, with inbreeding coefficients of zero were similar in quality to those from generic gray wolves. However, samples from a limited number of offspring from back‐crosses were of extremely poor quality. Although it is reassuring that sperm quality was so much improved in male offspring of lineage crosses, the concomitant reduction in inbreeding coefficient does not eliminate the potentially deleterious alleles. Our results demonstrate that sperm quality is an important indicator of fertility and reproductive success in Mexican wolves. In addition, our data lend further support to the presence of inbreeding depression in this taxon. |
format |
Article in Journal/Newspaper |
author |
Asa, C. Miller, P. Agnew, M. Rebolledo, J. A. R. Lindsey, S. L. Callahan, M. Bauman, K. |
spellingShingle |
Asa, C. Miller, P. Agnew, M. Rebolledo, J. A. R. Lindsey, S. L. Callahan, M. Bauman, K. Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves |
author_facet |
Asa, C. Miller, P. Agnew, M. Rebolledo, J. A. R. Lindsey, S. L. Callahan, M. Bauman, K. |
author_sort |
Asa, C. |
title |
Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves |
title_short |
Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves |
title_full |
Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves |
title_fullStr |
Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves |
title_full_unstemmed |
Relationship of inbreeding with sperm quality and reproductive success in Mexican gray wolves |
title_sort |
relationship of inbreeding with sperm quality and reproductive success in mexican gray wolves |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.1469-1795.2007.00116.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-1795.2007.00116.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-1795.2007.00116.x |
genre |
Canis lupus gray wolf |
genre_facet |
Canis lupus gray wolf |
op_source |
Animal Conservation volume 10, issue 3, page 326-331 ISSN 1367-9430 1469-1795 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1469-1795.2007.00116.x |
container_title |
Animal Conservation |
container_volume |
10 |
container_issue |
3 |
container_start_page |
326 |
op_container_end_page |
331 |
_version_ |
1810438515670908928 |