Shaping the biology of citrus: II. Genomic determinants of domestication

We performed genomic analyses on species and varieties of the genus Citrus to identify several determinants of domestication, based on the pattern of pummelo [Citrus maxima (Burr. f) Merr] and mandarin (Citrus reticulata Blanco) admixture into the ancestral genome, as well as population genetic test...

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Autores principales: González-Ibeas, Daniel, Ibanez, Victoria, Pérez-Román, Estela, Borredá, Carles, Terol, Javier, Talón, Manuel
Formato: article
Lenguaje:Inglés
Publicado: Wiley Online Library 2021
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Acceso en línea:http://hdl.handle.net/20.500.11939/7669
https://acsess.onlinelibrary.wiley.com/doi/10.1002/tpg2.20133
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author González-Ibeas, Daniel
Ibanez, Victoria
Pérez-Román, Estela
Borredá, Carles
Terol, Javier
Talón, Manuel
author_browse Borredá, Carles
González-Ibeas, Daniel
Ibanez, Victoria
Pérez-Román, Estela
Talón, Manuel
Terol, Javier
author_facet González-Ibeas, Daniel
Ibanez, Victoria
Pérez-Román, Estela
Borredá, Carles
Terol, Javier
Talón, Manuel
author_sort González-Ibeas, Daniel
collection ReDivia
description We performed genomic analyses on species and varieties of the genus Citrus to identify several determinants of domestication, based on the pattern of pummelo [Citrus maxima (Burr. f) Merr] and mandarin (Citrus reticulata Blanco) admixture into the ancestral genome, as well as population genetic tests at smaller scales. Domestication impacted gene families regulating pivotal components of citrus flavor (such as acidity) because in edible mandarin varieties, chromosome areas with negative Tajimas values were enriched with genes associated with the regulation of citric acid. Detection of sweeps in edible mandarins that diverged from wild relatives indicated that domestication reduced chemical defenses involving cyanogenesis and alkaloid synthesis, thus increasing palatability. Also, a cluster of SAUR genes in domesticated mandarins derived from the pummelo genome appears to contain candidate genes controlling fruit size. Similarly, conserved stretches of pure mandarin areas were likely important as well for domestication, as, for example, a fragment in chromosome 1 that is involved in the apomictic reproduction of most edible mandarins. Interestingly, our results also support the hypothesis that various genes subject to selective pressure during evolution or derived from whole genome duplication events later became potential targets of domestication.
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spelling ReDivia76692025-04-25T14:48:28Z Shaping the biology of citrus: II. Genomic determinants of domestication González-Ibeas, Daniel Ibanez, Victoria Pérez-Román, Estela Borredá, Carles Terol, Javier Talón, Manuel Gene families Chemical defenses F30 Plant genetics and breeding A50 Agricultural research B50 History F60 Plant physiology and biochemistry F70 Plant taxonomy and geography Q01 Food science and technology Q04 Food composition Citrus genomics Plant domestication Pummelos Mandarins Flavor Palatability We performed genomic analyses on species and varieties of the genus Citrus to identify several determinants of domestication, based on the pattern of pummelo [Citrus maxima (Burr. f) Merr] and mandarin (Citrus reticulata Blanco) admixture into the ancestral genome, as well as population genetic tests at smaller scales. Domestication impacted gene families regulating pivotal components of citrus flavor (such as acidity) because in edible mandarin varieties, chromosome areas with negative Tajimas values were enriched with genes associated with the regulation of citric acid. Detection of sweeps in edible mandarins that diverged from wild relatives indicated that domestication reduced chemical defenses involving cyanogenesis and alkaloid synthesis, thus increasing palatability. Also, a cluster of SAUR genes in domesticated mandarins derived from the pummelo genome appears to contain candidate genes controlling fruit size. Similarly, conserved stretches of pure mandarin areas were likely important as well for domestication, as, for example, a fragment in chromosome 1 that is involved in the apomictic reproduction of most edible mandarins. Interestingly, our results also support the hypothesis that various genes subject to selective pressure during evolution or derived from whole genome duplication events later became potential targets of domestication. 2021-10-18T10:08:41Z 2021-10-18T10:08:41Z 2021 article publishedVersion Gonzalez-Ibeas, D., Ibanez, V., Perez-Roman, E., Borreda, C., Terol, J. & Talon, M. (2021). Shaping the biology of citrus: II. Genomic determinants of domestication. Plant Genome. 2021, e20133. 1940-3372 (online ISSN) http://hdl.handle.net/20.500.11939/7669 10.1002/tpg2.20133 https://acsess.onlinelibrary.wiley.com/doi/10.1002/tpg2.20133 en info:eu-repo/grantAgreement/ERDF/POCV 2014-2020/51915 info:eu-repo/grantAgreement/ERDF/PCV 2021-2027/52002 o:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/RTI2018-097790-R-I00//DESARROLLO Y OBTENCION DE NUEVAS VARIEDADES DE CITRICOS MEDIANTE LA APLICACION DE HERRAMIENTAS GENOMICAS DE MEJORA BASADAS EN LOS METODOS DE SECUENCIACION DE NUEVA GENERACION This work has been financially supported by the following institutions: Ministerio de Ciencia, Innovación y Universidades (Spain) through grants # RTI2018-097790-R-100 andIJCI-2016-28184 and from the Instituto Valenciano de Investigaciones Agrarias (Spain), through grants 51915 and 52002. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess Wiley Online Library electronico
spellingShingle Gene families
Chemical defenses
F30 Plant genetics and breeding
A50 Agricultural research
B50 History
F60 Plant physiology and biochemistry
F70 Plant taxonomy and geography
Q01 Food science and technology
Q04 Food composition
Citrus
genomics
Plant domestication
Pummelos
Mandarins
Flavor
Palatability
González-Ibeas, Daniel
Ibanez, Victoria
Pérez-Román, Estela
Borredá, Carles
Terol, Javier
Talón, Manuel
Shaping the biology of citrus: II. Genomic determinants of domestication
title Shaping the biology of citrus: II. Genomic determinants of domestication
title_full Shaping the biology of citrus: II. Genomic determinants of domestication
title_fullStr Shaping the biology of citrus: II. Genomic determinants of domestication
title_full_unstemmed Shaping the biology of citrus: II. Genomic determinants of domestication
title_short Shaping the biology of citrus: II. Genomic determinants of domestication
title_sort shaping the biology of citrus ii genomic determinants of domestication
topic Gene families
Chemical defenses
F30 Plant genetics and breeding
A50 Agricultural research
B50 History
F60 Plant physiology and biochemistry
F70 Plant taxonomy and geography
Q01 Food science and technology
Q04 Food composition
Citrus
genomics
Plant domestication
Pummelos
Mandarins
Flavor
Palatability
url http://hdl.handle.net/20.500.11939/7669
https://acsess.onlinelibrary.wiley.com/doi/10.1002/tpg2.20133
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