scholarly journals Dynamics, Persistence, and Genetic Management of the Endangered Florida Panther Population

2019 ◽  
Vol 203 (1) ◽  
pp. 3-35 ◽  
Author(s):  
Madelon Kerk ◽  
David P. Onorato ◽  
Jeffrey A. Hostetler ◽  
Benjamin M. Bolker ◽  
Madan K. Oli
Keyword(s):  
Genetic Management ◽  
Florida Panther

Evolutionary genetics of small populations

2017 ◽  
Author(s):  
Richard Frankham ◽  
Jonathan D. Ballou ◽  
Katherine Ralls ◽  
Mark D. B. Eldridge ◽  
Michele R. Dudash ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Size ◽  
Evolutionary Genetics ◽  
Small Population ◽  
Small Populations ◽  
Effective Population ◽  
Genetic Management ◽  
Evolutionary Genetic ◽  
Loss Of Genetic Diversity ◽  
Number Of Individuals

Genetic management of fragmented populations involves the application of evolutionary genetic theory and knowledge to alleviate problems due to inbreeding and loss of genetic diversity in small population fragments. Populations evolve through the effects of mutation, natural selection, chance (genetic drift) and gene flow (migration). Large outbreeding, sexually reproducing populations typically contain substantial genetic diversity, while small populations typically contain reduced levels. Genetic impacts of small population size on inbreeding, loss of genetic diversity and population differentiation are determined by the genetically effective population size, which is usually much smaller than the number of individuals.

Demographics and Genetic Introgression in the Florida Panther

1995 ◽  
Vol 9 (5) ◽  
pp. 1295-1298 ◽  
Author(s):  
DAVID S. MAEHR ◽  
GERARD B. CADDICK
Keyword(s):  
Genetic Introgression ◽  
Florida Panther

scholarly journals The heritable landscape of near-infrared and Raman spectroscopic measurements to improve lipid content in Atlantic salmon fillets

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Gareth F. Difford ◽  
Siri S. Horn ◽  
Katinka R. Dankel ◽  
Bente Ruyter ◽  
Binyam S. Dagnachew ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Lipid Content ◽  
Production Efficiency ◽  
Near Infrared ◽  
Reference Method ◽  
Partial Least Square ◽  
Least Square ◽  
Genetic Management ◽  
Genetic Progress ◽  
Breeding Programmes

Abstract Background Product quality and production efficiency of Atlantic salmon are, to a large extent, influenced by the deposition and depletion of lipid reserves. Fillet lipid content is a heritable trait and is unfavourably correlated with growth, thus genetic management of fillet lipid content is needed for sustained genetic progress in these two traits. The laboratory-based reference method for recording fillet lipid content is highly accurate and precise but, at the same time, expensive, time-consuming, and destructive. Here, we test the use of rapid and cheaper vibrational spectroscopy methods, namely near-infrared (NIR) and Raman spectroscopy both as individual phenotypes and phenotypic predictors of lipid content in Atlantic salmon. Results Remarkably, 827 of the 1500 individual Raman variables (i.e. Raman shifts) of the Raman spectrum were significantly heritable (heritability (h2) ranging from 0.15 to 0.65). Similarly, 407 of the 2696 NIR spectral landscape variables (i.e. wavelengths) were significantly heritable (h2 = 0.27–0.40). Both Raman and NIR spectral landscapes had significantly heritable regions, which are also informative in spectroscopic predictions of lipid content. Partial least square predicted lipid content using Raman and NIR spectra were highly concordant and highly genetically correlated with the lipid content values ($${r}_{\text{g}}$$ r g = 0.91–0.98) obtained with the reference method using Lin’s concordance correlation coefficient (CCC = 0.63–0.90), and were significantly heritable ($${h}^{2}$$ h 2 = 0.52–0.67). Conclusions Both NIR and Raman spectral landscapes show substantial additive genetic variation and are highly genetically correlated with the reference method. These findings lay down the foundation for rapid spectroscopic measurement of lipid content in salmonid breeding programmes.

scholarly journals Development of EST-Molecular Markers from RNA Sequencing for Genetic Management and Identification of Growth Traits in Potato Grouper (Epinephelus tukula)

Biology ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 36
Author(s):  
Te-Hua Hsu ◽  
Yu-Ting Chiu ◽  
Hung-Tai Lee ◽  
Hong-Yi Gong ◽  
Chang-Wen Huang
Keyword(s):  
Molecular Markers ◽  
Expressed Sequence Tag ◽  
De Novo ◽  
Growth Traits ◽  
Gene Diversity ◽  
Snp Markers ◽  
Cdna Libraries ◽  
Functional Markers ◽  
Genetic Management ◽  
Ssr And Snp Markers

The accuracy and efficiency of marker-assisted selection (MAS) has been proven for economically critical aquaculture species. The potato grouper (Epinephelus tukula), a novel cultured grouper species in Taiwan, shows large potential in aquaculture because of its fast growth rate among other groupers. Because of the lack of genetic information for the potato grouper, the first transcriptome and expressed sequence tag (EST)-derived simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) markers were developed. Initially, the transcriptome was obtained from seven cDNA libraries by using the Illumina platform. De novo transcriptome of the potato grouper yielded 51.34 Gb and 111,490 unigenes. The EST-derived SSR and SNP markers were applied in genetic management, in parentage analysis, and to discover the functional markers of economic traits. The F1 juveniles were identified as siblings from one pair of parents (80 broodstocks). Fast- and slow-growth individuals were analyzed using functional molecular markers and through their association with growth performance. The results revealed that two SNPs were correlated with growth traits. The transcriptome database obtained in this study and its derived SSR and SNP markers may be applied not only for MAS but also to maintain functional gene diversity in the novel cultured grouper.

Demographics and Genetic Introgression in the Florida Panther

1995 ◽  
Vol 9 (5) ◽  
pp. 1295-1298 ◽  
Author(s):  
DAVID S. MAEHR ◽  
GERARD B. CADDICK
Keyword(s):  
Genetic Introgression ◽  
Florida Panther

scholarly journals Genomic approach for conservation and the sustainable management of endangered species of the Amazon

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0240002
Author(s):  
Paola Fazzi-Gomes ◽  
Jonas Aguiar ◽  
Gleyce Fonseca Cabral ◽  
Diego Marques ◽  
Helber Palheta ◽  
...  
Keyword(s):  
Genetic Information ◽  
Sustainable Management ◽  
Taxonomic Status ◽  
Accurate Information ◽  
Wild Populations ◽  
Genetic Management ◽  
Current Management ◽  
Arapaima Gigas ◽  
Genomic Approach ◽  
Multiplex System

A broad panel of potentially amplifiable microsatellite loci and a multiplex system were developed for the Amazonian symbol fish species Arapaima gigas, which is currently in high danger of extinction due to the disorderly fishing exploitation. Several factors have contributed to the increase of this threat, among which we highlight the lack of genetic information about the structure and taxonomic status of the species, as well as the lack of accurate tools for evaluation of the effectivity of current management programs. Based on Arapaima gigas’ whole genome, available at the NCBI database (ID: 12404), a total of 95,098 unique perfect microsatellites were identified, including their proposed primers. From this panel, a multiplex system containing 12 tetranucleotide microsatellite markers was validated. These tools are valuable for research in as many areas as bioinformatics, ecology, genetics, evolution and comparative studies, since they are able to provide more accurate information for fishing management, conservation of wild populations and genetic management of aquaculture.

Sign in / Sign up

Export Citation Format

Share Document