Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya

Papaya is a globally important crop, with production primarily based on hermaphrodite plants. Papaya has three sex types—male, female, and hermaphrodite—determined by flower morphology, but this is only distinguishable at the flowering stage. In this study, a recombinase polymerase amplification (RP...

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Main Authors: José Guadalupe Ávila-Hernández, Alejandro Coreño-Alonso, Mario Alberto Pantoja-Alonso, Francisco Javier Córdoba-Andrade, Rogelio González-González, Corina E. Díaz-Quezada, Alberto Camas-Reyes, Agustino Martínez-Antonio
Format: Article
Language:English
Published: MDPI AG 2024-09-01
Series:Applied Biosciences
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Online Access:https://www.mdpi.com/2813-0464/3/4/27
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author José Guadalupe Ávila-Hernández
Alejandro Coreño-Alonso
Mario Alberto Pantoja-Alonso
Francisco Javier Córdoba-Andrade
Rogelio González-González
Corina E. Díaz-Quezada
Alberto Camas-Reyes
Agustino Martínez-Antonio
author_facet José Guadalupe Ávila-Hernández
Alejandro Coreño-Alonso
Mario Alberto Pantoja-Alonso
Francisco Javier Córdoba-Andrade
Rogelio González-González
Corina E. Díaz-Quezada
Alberto Camas-Reyes
Agustino Martínez-Antonio
author_sort José Guadalupe Ávila-Hernández
collection DOAJ
description Papaya is a globally important crop, with production primarily based on hermaphrodite plants. Papaya has three sex types—male, female, and hermaphrodite—determined by flower morphology, but this is only distinguishable at the flowering stage. In this study, a recombinase polymerase amplification (RPA) assay was developed and optimized to identify the three sexes of papaya. Recombinant uvsX, uvsY, gp32, and Bsu DNA polymerase were used to study the effects of temperature, reaction time, and sensitivity conditions for RPA reaction efficiency. The optimal conditions were found to be 41 °C and a 30 min reaction time, allowing the detection of the target sex from specific DNA markers, even when using crude extract. This study shows that RPA could be used for sex determination in papaya, and the findings could contribute to developing a point-of-need strategy due to their sensitivity and specificity.
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spelling doaj-art-c36019d2492943cc8a5db402a467fa972025-08-20T02:53:27ZengMDPI AGApplied Biosciences2813-04642024-09-013442643710.3390/applbiosci3040027Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in PapayaJosé Guadalupe Ávila-Hernández0Alejandro Coreño-Alonso1Mario Alberto Pantoja-Alonso2Francisco Javier Córdoba-Andrade3Rogelio González-González4Corina E. Díaz-Quezada5Alberto Camas-Reyes6Agustino Martínez-Antonio7Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Unidad Irapuato, Irapuato 36824, Guanajuato, MexicoDepartamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Unidad Irapuato, Irapuato 36824, Guanajuato, MexicoDepartamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Unidad Irapuato, Irapuato 36824, Guanajuato, MexicoDepartamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Unidad Irapuato, Irapuato 36824, Guanajuato, MexicoUnidad de Genómica Avanzada, Centro de Investigación y de Estudios Avanzados, Irapuato 36824, Guanajuato, MexicoUnidad de Genómica Avanzada, Centro de Investigación y de Estudios Avanzados, Irapuato 36824, Guanajuato, MexicoDepartamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Unidad Irapuato, Irapuato 36824, Guanajuato, MexicoDepartamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Unidad Irapuato, Irapuato 36824, Guanajuato, MexicoPapaya is a globally important crop, with production primarily based on hermaphrodite plants. Papaya has three sex types—male, female, and hermaphrodite—determined by flower morphology, but this is only distinguishable at the flowering stage. In this study, a recombinase polymerase amplification (RPA) assay was developed and optimized to identify the three sexes of papaya. Recombinant uvsX, uvsY, gp32, and Bsu DNA polymerase were used to study the effects of temperature, reaction time, and sensitivity conditions for RPA reaction efficiency. The optimal conditions were found to be 41 °C and a 30 min reaction time, allowing the detection of the target sex from specific DNA markers, even when using crude extract. This study shows that RPA could be used for sex determination in papaya, and the findings could contribute to developing a point-of-need strategy due to their sensitivity and specificity.https://www.mdpi.com/2813-0464/3/4/27recombinase polymerase amplification<i>Carica papaya</i> L.isothermal amplificationmolecular sexinghermaphrodite
spellingShingle José Guadalupe Ávila-Hernández
Alejandro Coreño-Alonso
Mario Alberto Pantoja-Alonso
Francisco Javier Córdoba-Andrade
Rogelio González-González
Corina E. Díaz-Quezada
Alberto Camas-Reyes
Agustino Martínez-Antonio
Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya
Applied Biosciences
recombinase polymerase amplification
<i>Carica papaya</i> L.
isothermal amplification
molecular sexing
hermaphrodite
title Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya
title_full Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya
title_fullStr Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya
title_full_unstemmed Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya
title_short Step-by-Step Development of a Recombinase Polymerase Amplification (RPA) Assay for Sex Identification in Papaya
title_sort step by step development of a recombinase polymerase amplification rpa assay for sex identification in papaya
topic recombinase polymerase amplification
<i>Carica papaya</i> L.
isothermal amplification
molecular sexing
hermaphrodite
url https://www.mdpi.com/2813-0464/3/4/27
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