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Article: Genetic load and viability of a future restored northern white rhino population.

Wilder, Aryn P / Steiner, Cynthia C / Hendricks, Sarah / Haller, Benjamin C / Kim, Chang / Korody, Marisa L / Ryder, Oliver A

Evolutionary applications

2024 Volume 17, Issue 4, Page(s) e13683

Abstract: As biodiversity loss outpaces recovery, conservationists are increasingly turning to novel tools for preventing extinction, including cloning and in vitro gametogenesis of biobanked cells. However, restoration of populations can be hindered by low ... ...

Abstract	As biodiversity loss outpaces recovery, conservationists are increasingly turning to novel tools for preventing extinction, including cloning and in vitro gametogenesis of biobanked cells. However, restoration of populations can be hindered by low genetic diversity and deleterious genetic load. The persistence of the northern white rhino (
Language	English
Publishing date	2024-04-11
Publishing country	England
Document type	Journal Article
ZDB-ID	2405496-3
ISSN	1752-4563 ; 1752-4571
ISSN (online)	1752-4563
ISSN	1752-4571
DOI	10.1111/eva.13683
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Bidirectional needs assessment of otolaryngology-head and neck surgery short-term surgical trips to Ethiopia and Kenya.

Chweya, Cynthia M / Ryder, C Yoonhee / Fei-Zhang, David J / Green, Katerina J / Zemene, Yilkal / Okerosi, Samuel / Wiedermann, Joshua P

Laryngoscope investigative otolaryngology

2023 Volume 8, Issue 1, Page(s) 303–312

Abstract: Objectives: To create an otolaryngology-specific needs assessment tool for short-term global surgical trips and to describe our findings from its implementation.: Methods: Surveys 1 and 2 were developed based on a literature review and disseminated ... ...

Abstract	Objectives: To create an otolaryngology-specific needs assessment tool for short-term global surgical trips and to describe our findings from its implementation. Methods: Surveys 1 and 2 were developed based on a literature review and disseminated to Low-Middle Income (LMIC) hosting institutions in Kenya and Ethiopia and to High-Income surgical trip participants (HIC), respectively. Respondents were otolaryngologists identified online, through professional organizations, and by word-of-mouth, who had participated in a surgical trip of <4 weeks. Results: HIC and LMIC respondents shared similar goals of expanding host surgical skills through education and training while building sustainable partnerships. Discrepancies were identified between LMIC desired surgical skills and supply needs and HIC current practices. Microvascular reconstruction (17.6%), advanced otologic surgery (17.6%), and FESS (14.7%) were most desired skills and high-demand equipment needs were FESS sets (89%), endoscopes (78%), and surgical drills (56%). Frequently taught techniques included advanced otologic surgery (36.6%), congenital anomaly surgery (14.6%), and FESS (14.6%) with the largest gap between LMIC-need and HIC-offerings being in microvascular reconstruction (17.6% vs. 0%). We also highlight the discrepancy in expectations of responsibility for trip logistics, research, and patient follow-up. Conclusion: We created and implemented the first otolaryngology-specific needs assessment tool in the literature. With its implementation in Ethiopia and Kenya, we were able to identify unmet needs as well as attitudes and perceptions of LMIC and HIC participants. This tool may be adapted and utilized to assess specific needs, resources, and goals of both host and visiting teams to facilitate successful global partnerships. Level of evidence: Level VI.
Language	English
Publishing date	2023-01-25
Publishing country	United States
Document type	Journal Article
ISSN	2378-8038
ISSN	2378-8038
DOI	10.1002/lio2.1014
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Response to Bakker et al.

Robinson, Jacqueline A / Bowie, Rauri C K / Dudchenko, Olga / Aiden, Erez Lieberman / Hendrickson, Sher L / Steiner, Cynthia C / Ryder, Oliver A / Mindell, David P / Wall, Jeffrey D

Current biology : CB

2022 Volume 32, Issue 8, Page(s) R358–R359

Abstract: Robinson and colleagues respond to the points raised about their paper by Bakker et al. ...

Abstract	Robinson and colleagues respond to the points raised about their paper by Bakker et al.
Language	English
Publishing date	2022-05-18
Publishing country	England
Document type	Letter ; Comment
ZDB-ID	1071731-6
ISSN	1879-0445 ; 0960-9822
ISSN (online)	1879-0445
ISSN	0960-9822
DOI	10.1016/j.cub.2022.03.049
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Article ; Online: Corrigendum to: Facultative Parthenogenesis in California Condors.

Ryder, Oliver A / Thomas, Steven / Judson, Jessica Martin / Romanov, Michael N / Dandekar, Sugandha / Papp, Jeanette C / Sidak-Loftis, Lindsay C / Walker, Kelli / Stalis, Ilse H / Mace, Michael / Steiner, Cynthia C / Chemnick, Leona G

The Journal of heredity

2022 Volume 113, Issue 2, Page(s) 217

Language	English
Publishing date	2022-05-16
Publishing country	United States
Document type	Published Erratum
ZDB-ID	3044-2
ISSN	1465-7333 ; 0022-1503
ISSN (online)	1465-7333
ISSN	0022-1503
DOI	10.1093/jhered/esab074
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Article ; Online: The contribution of historical processes to contemporary extinction risk in placental mammals.

Wilder, Aryn P / Supple, Megan A / Subramanian, Ayshwarya / Mudide, Anish / Swofford, Ross / Serres-Armero, Aitor / Steiner, Cynthia / Koepfli, Klaus-Peter / Genereux, Diane P / Karlsson, Elinor K / Lindblad-Toh, Kerstin / Marques-Bonet, Tomas / Munoz Fuentes, Violeta / Foley, Kathleen / Meyer, Wynn K / Ryder, Oliver A / Shapiro, Beth

Science (New York, N.Y.)

2023 Volume 380, Issue 6643, Page(s) eabn5856

Abstract: Species persistence can be influenced by the amount, type, and distribution of diversity across the genome, suggesting a potential relationship between historical demography and resilience. In this study, we surveyed genetic variation across single ... ...

Abstract	Species persistence can be influenced by the amount, type, and distribution of diversity across the genome, suggesting a potential relationship between historical demography and resilience. In this study, we surveyed genetic variation across single genomes of 240 mammals that compose the Zoonomia alignment to evaluate how historical effective population size (
MeSH term(s)	Animals ; Female ; Pregnancy ; Eutheria/genetics ; Extinction, Biological ; Genetic Variation ; Genome ; Population Density ; Risk
Language	English
Publishing date	2023-04-28
Publishing country	United States
Document type	Journal Article
ZDB-ID	128410-1
ISSN	1095-9203 ; 0036-8075
ISSN (online)	1095-9203
ISSN	0036-8075
DOI	10.1126/science.abn5856
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Article ; Online: Egg masses as training aids for spotted lanternfly Lycorma delicatula detection dogs.

Essler, Jennifer L / Kane, Sarah A / Collins, Amanda / Ryder, Kaley / DeAngelo, Annemarie / Kaynaroglu, Patricia / Otto, Cynthia M

PloS one

2021 Volume 16, Issue 5, Page(s) e0250945

Abstract: The spotted lanternfly (Lycorma delicatula) is an invasive species first detected in 2014. The insect feeds on plants causing severe damage in vineyards such as the occurrence of sooty mold fungus that impairs leaf photosynthesis. Currently, there is ... ...

Abstract	The spotted lanternfly (Lycorma delicatula) is an invasive species first detected in 2014. The insect feeds on plants causing severe damage in vineyards such as the occurrence of sooty mold fungus that impairs leaf photosynthesis. Currently, there is extensive research on how to track and ultimately prevent the spread of this species. It lays eggs that persist through the winter, while the adults die out, which presents a unique opportunity to enter infested or suspected infested areas to begin quarantine and management of the spread while the species is dormant. Detection dogs may be a tool that can be used to search out the spotted lanternfly egg masses during this overwintering period, however it is not known whether dogs can detect any specific odor from the spotted lanternfly eggs. Moreover, as the eggs are only available during certain times of the year, and hatch based on temperature, finding training aids for the dogs could prove difficult. In this study, we investigated whether three detection dogs could learn the odor from dead spotted lanternfly egg masses and if so, whether that would allow them to recognize live spotted lanternfly egg masses. We found that dogs could be trained to find dead spotted lanternfly egg masses, and could learn to ignore relevant controls, with high levels of sensitivity and specificity (up to 94.6% and 92.8%, respectively). Further, we found that after the training, dogs could find live spotted lanternfly egg masses without additional training and returned to previous levels of sensitivity and specificity within a few sessions. Coded videos of training and testing sessions showed that dogs spent more time at the egg masses than at controls, as expected from training. These results suggest that dead spotted lanternfly egg masses could be a useful training aid for spotted lanternfly detection dogs.
MeSH term(s)	Animals ; Dogs ; Eggs ; Hemiptera/growth & development ; Introduced Species ; Odorants ; Plants/parasitology ; Seasons ; Teaching Materials ; Working Dogs/physiology
Language	English
Publishing date	2021-05-03
Publishing country	United States
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0250945
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Genome-wide diversity in the California condor tracks its prehistoric abundance and decline.

Robinson, Jacqueline A / Bowie, Rauri C K / Dudchenko, Olga / Aiden, Erez Lieberman / Hendrickson, Sher L / Steiner, Cynthia C / Ryder, Oliver A / Mindell, David P / Wall, Jeffrey D

Current biology : CB

2021 Volume 31, Issue 13, Page(s) 2939–2946.e5

Abstract: Due to their small population sizes, threatened and endangered species frequently suffer from a lack of genetic diversity, potentially leading to inbreeding depression and reduced adaptability. ...

Abstract	Due to their small population sizes, threatened and endangered species frequently suffer from a lack of genetic diversity, potentially leading to inbreeding depression and reduced adaptability.
MeSH term(s)	Animals ; Ecosystem ; Endangered Species ; Falconiformes/classification ; Falconiformes/genetics ; Female ; Genome/genetics ; Genomics ; Population Density
Language	English
Publishing date	2021-05-13
Publishing country	England
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	1071731-6
ISSN	1879-0445 ; 0960-9822
ISSN (online)	1879-0445
ISSN	0960-9822
DOI	10.1016/j.cub.2021.04.035
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Article ; Online: Characterization of Prdm9 in equids and sterility in mules.

Steiner, Cynthia C / Ryder, Oliver A

PloS one

2013 Volume 8, Issue 4, Page(s) e61746

Abstract: Prdm9 (Meisetz) is the first speciation gene discovered in vertebrates conferring reproductive isolation. This locus encodes a meiosis-specific histone H3 methyltransferase that specifies meiotic recombination hotspots during gametogenesis. Allelic ... ...

Abstract	Prdm9 (Meisetz) is the first speciation gene discovered in vertebrates conferring reproductive isolation. This locus encodes a meiosis-specific histone H3 methyltransferase that specifies meiotic recombination hotspots during gametogenesis. Allelic differences in Prdm9, characterized for a variable number of zinc finger (ZF) domains, have been associated with hybrid sterility in male house mice via spermatogenic failure at the pachytene stage. The mule, a classic example of hybrid sterility in mammals also exhibits a similar spermatogenesis breakdown, making Prdm9 an interesting candidate to evaluate in equine hybrids. In this study, we characterized the Prdm9 gene in all species of equids by analyzing sequence variation of the ZF domains and estimating positive selection. We also evaluated the role of Prdm9 in hybrid sterility by assessing allelic differences of ZF domains in equine hybrids. We found remarkable variation in the sequence and number of ZF domains among equid species, ranging from five domains in the Tibetan kiang and Asiatic wild ass, to 14 in the Grevy's zebra. Positive selection was detected in all species at amino acid sites known to be associated with DNA-binding specificity of ZF domains in mice and humans. Equine hybrids, in particular a quartet pedigree composed of a fertile mule showed a mosaic of sequences and number of ZF domains suggesting that Prdm9 variation does not seem by itself to contribute to equine hybrid sterility.
MeSH term(s)	Alleles ; Amino Acid Sequence ; Animals ; Equidae/genetics ; Evolution, Molecular ; Female ; Genetic Variation ; Histone-Lysine N-Methyltransferase/chemistry ; Histone-Lysine N-Methyltransferase/genetics ; Histone-Lysine N-Methyltransferase/metabolism ; Hybridization, Genetic ; Infertility/enzymology ; Infertility/genetics ; Male ; Molecular Sequence Data ; Protein Structure, Tertiary ; Selection, Genetic
Chemical Substances	Histone-Lysine N-Methyltransferase (EC 2.1.1.43)
Language	English
Publishing date	2013-04-22
Publishing country	United States
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0061746
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Egg masses as training aids for spotted lanternfly Lycorma delicatula detection dogs.

Jennifer L Essler / Sarah A Kane / Amanda Collins / Kaley Ryder / Annemarie DeAngelo / Patricia Kaynaroglu / Cynthia M Otto

PLoS ONE, Vol 16, Iss 5, p e

2021 Volume 0250945

Abstract	The spotted lanternfly (Lycorma delicatula) is an invasive species first detected in 2014. The insect feeds on plants causing severe damage in vineyards such as the occurrence of sooty mold fungus that impairs leaf photosynthesis. Currently, there is extensive research on how to track and ultimately prevent the spread of this species. It lays eggs that persist through the winter, while the adults die out, which presents a unique opportunity to enter infested or suspected infested areas to begin quarantine and management of the spread while the species is dormant. Detection dogs may be a tool that can be used to search out the spotted lanternfly egg masses during this overwintering period, however it is not known whether dogs can detect any specific odor from the spotted lanternfly eggs. Moreover, as the eggs are only available during certain times of the year, and hatch based on temperature, finding training aids for the dogs could prove difficult. In this study, we investigated whether three detection dogs could learn the odor from dead spotted lanternfly egg masses and if so, whether that would allow them to recognize live spotted lanternfly egg masses. We found that dogs could be trained to find dead spotted lanternfly egg masses, and could learn to ignore relevant controls, with high levels of sensitivity and specificity (up to 94.6% and 92.8%, respectively). Further, we found that after the training, dogs could find live spotted lanternfly egg masses without additional training and returned to previous levels of sensitivity and specificity within a few sessions. Coded videos of training and testing sessions showed that dogs spent more time at the egg masses than at controls, as expected from training. These results suggest that dead spotted lanternfly egg masses could be a useful training aid for spotted lanternfly detection dogs.
Keywords	Medicine ; R ; Science ; Q
Subject code	590
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Facultative Parthenogenesis in California Condors.

The Journal of heredity

2021 Volume 112, Issue 7, Page(s) 569–574

Abstract: Parthenogenesis is a relatively rare event in birds, documented in unfertilized eggs from columbid, galliform, and passerine females with no access to males. In the critically endangered California condor, parentage analysis conducted utilizing ... ...

Abstract	Parthenogenesis is a relatively rare event in birds, documented in unfertilized eggs from columbid, galliform, and passerine females with no access to males. In the critically endangered California condor, parentage analysis conducted utilizing polymorphic microsatellite loci has identified two instances of parthenogenetic development from the eggs of two females in the captive breeding program, each continuously housed with a reproductively capable male with whom they had produced offspring. Paternal genetic contribution to the two chicks was excluded. Both parthenotes possessed the expected male ZZ sex chromosomes and were homozygous for all evaluated markers inherited from their dams. These findings represent the first molecular marker-based identification of facultative parthenogenesis in an avian species, notably of females in regular contact with fertile males, and add to the phylogenetic breadth of vertebrate taxa documented to have reproduced via asexual reproduction.
MeSH term(s)	Female ; Fertility ; Homozygote ; Humans ; Male ; Parthenogenesis/genetics ; Phylogeny
Language	English
Publishing date	2021-10-29
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	3044-2
ISSN	1465-7333 ; 0022-1503
ISSN (online)	1465-7333
ISSN	0022-1503
DOI	10.1093/jhered/esab052
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