Article
Biochemistry & Molecular Biology
Paula E. Adams, Anna B. Crist, Ellen M. Young, John H. Willis, Patrick C. Phillips, Janna L. Fierst
Summary: The outcrossing species C. remanei can recover from inbreeding, but the recovery is limited by the presence of a large number of segregating deleterious variants in natural populations.
MOLECULAR BIOLOGY AND EVOLUTION
(2022)
Article
Biochemistry & Molecular Biology
Pengcheng Wang, John T. Burley, Yang Liu, Jiang Chang, De Chen, Qi Lu, Shou-Hsien Li, Xuming Zhou, Scott Edwards, Zhengwang Zhang
Summary: This study analyzed genomic data of three isolated populations of Brown eared pheasant in China, showing low genome-wide diversity and declining effective population size. The comparison with a closely related species revealed detrimental genetic consequences in the Brown eared pheasant genomes, indicating a potential risk of deleterious mutations in wild populations undergoing long-term decline. This comprehensive conservation genomic analysis could help improve conservation planning for threatened species and promote population recovery.
MOLECULAR BIOLOGY AND EVOLUTION
(2021)
Review
Biodiversity Conservation
Fabienne Van Rossum, Olivier J. Hardy
Summary: Plant translocation is a useful tool for implementing assisted gene flow in recovery plans of critically endangered plant species, but may pose genetic risks, requiring genetic monitoring to assess population viability and self-sustainability. Molecular markers and quantitative traits can be used to determine if translocation enhances genetic diversity, fitness, and long-term survival probability.
CONSERVATION BIOLOGY
(2022)
Article
Biodiversity Conservation
Zachary L. Robinson, Donovan A. Bell, Tashi Dhendup, Gordon Luikart, Andrew R. Whiteley, Marty Kardos
Summary: Augmenting gene flow is crucial for the conservation of isolated populations, but careful evaluation and monitoring are necessary. Common assessment methods may have limitations in detecting genetic rescue effects, highlighting the need for comprehensive monitoring information to improve reliability.
CONSERVATION BIOLOGY
(2021)
Article
Biodiversity Conservation
Ningxin Gu, Guoling Chen, Jia Yang, Chenqing Zheng, Xiaohui Gao, Leyang Yuan, Siyu Wang, Zhongyong Fan, Yiwei Lu, Gang Song, Shuihua Chen, Yang Liu
Summary: The Chinese Crested Tern is one of the most endangered seabird species in the world, with lower genetic diversity and signals of post-bottleneck population expansion observed. The study also found introgression between Chinese Crested Tern and Great Crested Tern.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Multidisciplinary Sciences
Kang-Rae Kim, Yeong-Ho Kwak, Mu-Sung Sung, Seong-Jang Cho, In-Chul Bang
Summary: The endangered black shinner Pseudopungtungia nigra is endemic to Korea, specifically the Geumgang River, Mangyeonggang River, and Ungcheoncheon Stream. Genetic analysis revealed complex population structure and migration. Conservation efforts are needed to protect the black shinner, especially in the Ungcheoncheon Stream population.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Joao C. Teixeira, Christian D. Huber
Summary: Conservation genetics aims to evaluate population health and extinction risk based on genetic diversity levels, but neutral genetic diversity is not the only factor affecting species extinction risk. A deeper understanding of functional genetic diversity, demographic history, and ecological relationships is necessary for developing effective conservation genetic strategies.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Agriculture, Dairy & Animal Science
Marco Tolone, Maria Teresa Sardina, Andrea Criscione, Emiliano Lasagna, Gabriele Senczuk, Ilaria Rizzuto, Silvia Riggio, Angelo Moscarelli, Vito Macaluso, Rosalia Di Gerlando, Martino Cassandro, Baldassare Portolano, Salvatore Mastrangelo
Summary: Italy has a diverse range of local chicken populations, including Val Platani (VPL) and Cornuta (COS), which are important genetic resources. This study used genotype data to investigate the genetic diversity, runs of homozygosity (ROH), population structure, and relationship of these populations. The results showed moderate genetic diversity in both populations, with ROH hotspots associated with immune response and adaptation to local temperatures. The population structure analysis revealed clear clustering based on geographic origin, with COS forming a distinct genomic cluster and VPL showing intermediate relationships with other Italian local chickens.
Article
Plant Sciences
Hamed Yousefzadeh, Shahla Raeisi, Omid Esmailzadeh, Gholamali Jalali, Malek Nasiri, Lukasz Walas, Gregor Kozlowski
Summary: The Sorbus aucuparia species is facing a decline in genetic diversity and a genetic bottleneck in the Hyrcanian forest, emphasizing the importance of implementing appropriate management methods to prevent further loss of genetic diversity.
Article
Evolutionary Biology
Lauren N. Carley, William F. Morris, Roberta Walsh, Donna Riebe, Tom Mitchell-Olds
Summary: This study investigated the relationship between genetic variation and population dynamics in Boechera fecunda. The results showed a weak positive correlation between genetic diversity and demographic performance. The inbreeding coefficient was not strongly correlated with demographic performance. Conservation of distinct B. fecunda populations is recommended.
EVOLUTIONARY APPLICATIONS
(2022)
Article
Agriculture, Dairy & Animal Science
Daniele Salvi
Summary: Information on endangered species populations in remote areas is limited, hindering conservation efforts. A climbing expedition on La Canna sea stack, led by an alpine guide, provided valuable data on the critically endangered Aeolian wall lizard. The results showed a small population size with limited genetic diversity and the detrimental effects of inbreeding depression.
Article
Multidisciplinary Sciences
Natalie L. Rosser, Anthony Quinton, Huw Davey, David J. Ayre, Andrew J. Denham
Summary: This study examines genetic composition of Yellow Box trees in endangered Box-Gum Grassy Woodland in SE Australia. The results suggest high gene flow between natural stands and paddock trees. The study shows that paddock trees have high genetic diversity and provide important genetic resources for natural recruitment.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Christoph Rosche, Annett Baasch, Karen Runge, Philipp Brade, Sabrina Trager, Christian Parisod, Isabell Hensen
Summary: This study used historical DNA to investigate local extinctions in the Biscutella laevigata subsp. gracilis populations in Central Germany. The results showed that gene flow was affected by spatial distance and floristic composition, and highlighted the potential of floristic composition as a predictor of functional connectivity. The study also found a negative relationship between sampling year and heterozygosity and germination.
Article
Ecology
Alberto Gonzalez-Zamora, Martha Gonzalez-Elizondo, Maria Fernanda Gonzalez-Delgado, Efrain Rios-Sanchez, Rebeca Perez-Morales
Summary: The study analyzed the diversity and genetic structure of populations of an endemic species of the Chihuahuan Desert using microsatellite markers. Low levels of genetic diversity were found among populations, but there was genetic differentiation within individuals. The population genetic structure can be explained by isolation-by-resistance in climate and isolation-by-resistance in altitude. Poor gene flow between populations may be due to climatic fluctuations, lack of known pollinators, and distribution area of the species in small discontinuous mountains.
JOURNAL OF ARID ENVIRONMENTS
(2023)
Article
Biodiversity Conservation
Kasey C. C. Pregler, Mariska Obedzinski, Elizabeth A. A. Gilbert-Horvath, Benjamin White, Stephanie M. M. Carlson, John Carlos Garza
Summary: Genetic rescue, through translocation of unrelated individuals, has emerged as an important tool to prevent extinction and improve the fitness of declining populations. However, concerns about the risk of outbreeding depression have hindered its widespread use in conservation management. This study evaluates the success of a genetic rescue intervention in endangered Coho Salmon and demonstrates the positive impact of outcrossing on the fitness of the population, without observing any evidence of outbreeding depression.
CONSERVATION LETTERS
(2023)