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Sarabia C, Salado I, Cornellas A, Fernández-Gil A, Vilà C, Leonard JA. Towards high–throughput analyses of fecal samples from wildlife. ANIMAL BIODIVERSITY AND CONSERVATION 2020. [DOI: 10.32800/abc.2020.43.0271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
High–throughput sequencing offers new possibilities in molecular ecology and conservation studies. However, its potential has not yet become fully exploited for noninvasive studies of free–ranging animals, such as those based on feces. High–throughput sequencing allows sequencing of short DNA fragments and could allow simultaneous genotyping of a very large number of samples and markers at a low cost. The application of high throughput genotyping to fecal samples from wildlife has been hindered by several labor–intensive steps. We evaluate alternative protocols which could allow higher throughput for two of these steps: sample collection and DNA extraction. Two different field sampling and seven different DNA extraction methods are tested here on grey wolf (Canis lupus) feces. There was high variation in genotyping success rates. The field sampling method based on surface swabbing performed much worse than the extraction from a fecal fragment. In addition, there is a lot of room for improvement in the DNA extraction step. Optimization of protocols can lead to very much more efficient, cheaper and higher throughput noninvasive monitoring. Selection of appropriate markers is still of paramount importance to increase genotyping success.
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Affiliation(s)
- C. Sarabia
- Estación Biológica de Doñana (EBD–CSIC), Seville, Spain
| | - I. Salado
- Estación Biológica de Doñana (EBD–CSIC), Seville, Spain
| | - A. Cornellas
- Estación Biológica de Doñana (EBD–CSIC), Seville, Spain
| | | | - C. Vilà
- Estación Biológica de Doñana (EBD–CSIC), Seville, Spain
| | - J. A. Leonard
- Estación Biológica de Doñana (EBD–CSIC), Seville, Spain
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Sharma V, Hazra T, Kandhol R, Sharma R, Arora S. Confirmation of buffalo tallow in anhydrous cow milk fat using gas liquid chromatography in tandem with species-specific polymerase chain reaction. INT J DAIRY TECHNOL 2017. [DOI: 10.1111/1471-0307.12390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vivek Sharma
- Dairy Chemistry Division; National Dairy Research Institute (NDRI); Karnal Haryana 132001 India
| | - Tanmay Hazra
- Dairy Chemistry Division; National Dairy Research Institute (NDRI); Karnal Haryana 132001 India
| | - Rakesh Kandhol
- Dairy Chemistry Division; National Dairy Research Institute (NDRI); Karnal Haryana 132001 India
| | - Rekha Sharma
- National Bureau of Animal Genetic Resources (NBAGR); Karnal Haryana 132001 India
| | - Sumit Arora
- Dairy Chemistry Division; National Dairy Research Institute (NDRI); Karnal Haryana 132001 India
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