A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications

The genus <i>Coturnix</i>, comprising migratory Old World quails, includes Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail (<i>Coturnix japonica</i>), which are nearly indistinguishable morphologically. This similarity poses challenges in species identi...

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Main Authors: Prateek Dey, Kochiganti Venkata Hanumat Sastry, Ram Pratap Singh
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Birds
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Online Access:https://www.mdpi.com/2673-6004/6/2/28
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author Prateek Dey
Kochiganti Venkata Hanumat Sastry
Ram Pratap Singh
author_facet Prateek Dey
Kochiganti Venkata Hanumat Sastry
Ram Pratap Singh
author_sort Prateek Dey
collection DOAJ
description The genus <i>Coturnix</i>, comprising migratory Old World quails, includes Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail (<i>Coturnix japonica</i>), which are nearly indistinguishable morphologically. This similarity poses challenges in species identification, leading to conservation issues such as the illegal trade of wild Common Quail in the name of farmed Japanese Quail. To address this issue, we employed two approaches: (1) mining species-specific short sequence repeats (SSRs) and (2) designing a PCR-restriction fragment length polymorphism (PCR-RFLP) assay targeting the <i>COX1</i> gene to distinguish these species. While SSR markers proved unreliable, the PCR-RFLP assay successfully distinguished between Common Quail and Japanese Quail, leveraging the unique BsaBI restriction site in the Common Quail <i>COX1</i> gene. This method demonstrated high specificity and reproducibility, offering a robust tool for forensic and conservation applications. Our findings provide a reliable, efficient, and accessible technique for wildlife managers and researchers to regulate the illegal trade of <i>Coturnix</i> quails and support conservation efforts.
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institution Kabale University
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publishDate 2025-06-01
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series Birds
spelling doaj-art-ca4c9b7a7de04b18ac4d02155d054a222025-08-20T03:27:18ZengMDPI AGBirds2673-60042025-06-01622810.3390/birds6020028A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation ImplicationsPrateek Dey0Kochiganti Venkata Hanumat Sastry1Ram Pratap Singh2Salim Ali Centre for Ornithology and Natural History, Coimbatore 641108, IndiaNational Institute of Animal Nutrition and Physiology, Bengaluru 560030, IndiaDepartment of Life Science, Central University of South Bihar, Gaya 824236, IndiaThe genus <i>Coturnix</i>, comprising migratory Old World quails, includes Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail (<i>Coturnix japonica</i>), which are nearly indistinguishable morphologically. This similarity poses challenges in species identification, leading to conservation issues such as the illegal trade of wild Common Quail in the name of farmed Japanese Quail. To address this issue, we employed two approaches: (1) mining species-specific short sequence repeats (SSRs) and (2) designing a PCR-restriction fragment length polymorphism (PCR-RFLP) assay targeting the <i>COX1</i> gene to distinguish these species. While SSR markers proved unreliable, the PCR-RFLP assay successfully distinguished between Common Quail and Japanese Quail, leveraging the unique BsaBI restriction site in the Common Quail <i>COX1</i> gene. This method demonstrated high specificity and reproducibility, offering a robust tool for forensic and conservation applications. Our findings provide a reliable, efficient, and accessible technique for wildlife managers and researchers to regulate the illegal trade of <i>Coturnix</i> quails and support conservation efforts.https://www.mdpi.com/2673-6004/6/2/28illegal wildlife traderestriction endonuclease assaysspecies identificationwildlife forensicsrapid identification protocol
spellingShingle Prateek Dey
Kochiganti Venkata Hanumat Sastry
Ram Pratap Singh
A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications
Birds
illegal wildlife trade
restriction endonuclease assays
species identification
wildlife forensics
rapid identification protocol
title A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications
title_full A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications
title_fullStr A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications
title_full_unstemmed A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications
title_short A PCR-RFLP Method for Distinguishing Closely Related Common Quail <i>(Coturnix coturnix)</i> and Japanese Quail <i>(Coturnix japonica)</i>: Forensics and Conservation Implications
title_sort pcr rflp method for distinguishing closely related common quail i coturnix coturnix i and japanese quail i coturnix japonica i forensics and conservation implications
topic illegal wildlife trade
restriction endonuclease assays
species identification
wildlife forensics
rapid identification protocol
url https://www.mdpi.com/2673-6004/6/2/28
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