Solanum malmeanum, a promising wild relative for potato breeding

Crop wild relatives are gaining increasing attention. Their use in plant breeding is essential to broaden the genetic basis of crops as well as to meet industrial demands, for global food security and sustainable production. Solanum malmeanum (Solanum sect. Petota, Solanaceae) is a wild relative of...

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Main Authors: Rodrigo Nicolao, Paola Gaiero, Caroline M. Castro, Gustavo Heiden
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-02-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.1046702/full
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author Rodrigo Nicolao
Paola Gaiero
Caroline M. Castro
Gustavo Heiden
author_facet Rodrigo Nicolao
Paola Gaiero
Caroline M. Castro
Gustavo Heiden
author_sort Rodrigo Nicolao
collection DOAJ
description Crop wild relatives are gaining increasing attention. Their use in plant breeding is essential to broaden the genetic basis of crops as well as to meet industrial demands, for global food security and sustainable production. Solanum malmeanum (Solanum sect. Petota, Solanaceae) is a wild relative of potatoes (S. tuberosum) from Southern South America, occurring in Argentina, Brazil, Paraguay and Uruguay. This wild potato has been largely mistaken for or historically considered as conspecific with S. commersonii. Recently, it was reinstated at the species level. Retrieving information on its traits and applied uses is challenging, because the species name has not always been applied correctly and also because species circumscriptions and morphological criteria applied to recognize it have not been consistent. To overcome these difficulties, we performed a thorough literature reference survey, herbaria specimens’ identification revision and genebank database queries to review and update the information available on this potato wild relative, contributing to an increase in research on it to fully understand and explore its potential for potato breeding. Scarce studies have been carried out concerning its reproductive biology, resistance against pests and diseases as well as tolerance to abiotic stresses and evaluation of quality traits. The scattered information available makes it less represented in genebanks and genetic studies are missing. We compile, update and present available information for S. malmeanum on taxonomy, geographical distribution, ecology, reproductive biology, relationship with its closest relatives, biotic and abiotic stresses resistance and quality traits and discuss ways to overcome sexual barriers of hybridization and future perspectives for its use in potato breeding. As a final remark, we highlight that this species’ potential uses have been neglected and must be unlocked. Thus, further studies on morphological and genetic variability with molecular tools are fundamental for an efficient conservation and applied use of this promising genetic resource.
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spelling doaj.art-aef15caa7bce4922bcac01ae1de558542023-02-20T06:19:32ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-02-011310.3389/fpls.2022.10467021046702Solanum malmeanum, a promising wild relative for potato breedingRodrigo Nicolao0Paola Gaiero1Caroline M. Castro2Gustavo Heiden3Programa de Pós-Graduação em Agronomia/Fitomelhoramento - Universidade Federal de Pelotas (UFPel), Pelotas, RS, BrazilDepartamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Montevideo, UruguayLaboratório de Recursos Genéticos, Embrapa Clima Temperado, Pelotas, RS, BrazilLaboratório de Recursos Genéticos, Embrapa Clima Temperado, Pelotas, RS, BrazilCrop wild relatives are gaining increasing attention. Their use in plant breeding is essential to broaden the genetic basis of crops as well as to meet industrial demands, for global food security and sustainable production. Solanum malmeanum (Solanum sect. Petota, Solanaceae) is a wild relative of potatoes (S. tuberosum) from Southern South America, occurring in Argentina, Brazil, Paraguay and Uruguay. This wild potato has been largely mistaken for or historically considered as conspecific with S. commersonii. Recently, it was reinstated at the species level. Retrieving information on its traits and applied uses is challenging, because the species name has not always been applied correctly and also because species circumscriptions and morphological criteria applied to recognize it have not been consistent. To overcome these difficulties, we performed a thorough literature reference survey, herbaria specimens’ identification revision and genebank database queries to review and update the information available on this potato wild relative, contributing to an increase in research on it to fully understand and explore its potential for potato breeding. Scarce studies have been carried out concerning its reproductive biology, resistance against pests and diseases as well as tolerance to abiotic stresses and evaluation of quality traits. The scattered information available makes it less represented in genebanks and genetic studies are missing. We compile, update and present available information for S. malmeanum on taxonomy, geographical distribution, ecology, reproductive biology, relationship with its closest relatives, biotic and abiotic stresses resistance and quality traits and discuss ways to overcome sexual barriers of hybridization and future perspectives for its use in potato breeding. As a final remark, we highlight that this species’ potential uses have been neglected and must be unlocked. Thus, further studies on morphological and genetic variability with molecular tools are fundamental for an efficient conservation and applied use of this promising genetic resource.https://www.frontiersin.org/articles/10.3389/fpls.2022.1046702/fullconservationcrop wild relativesfood securitygenetic resourcesgenebankgermplasm
spellingShingle Rodrigo Nicolao
Paola Gaiero
Caroline M. Castro
Gustavo Heiden
Solanum malmeanum, a promising wild relative for potato breeding
Frontiers in Plant Science
conservation
crop wild relatives
food security
genetic resources
genebank
germplasm
title Solanum malmeanum, a promising wild relative for potato breeding
title_full Solanum malmeanum, a promising wild relative for potato breeding
title_fullStr Solanum malmeanum, a promising wild relative for potato breeding
title_full_unstemmed Solanum malmeanum, a promising wild relative for potato breeding
title_short Solanum malmeanum, a promising wild relative for potato breeding
title_sort solanum malmeanum a promising wild relative for potato breeding
topic conservation
crop wild relatives
food security
genetic resources
genebank
germplasm
url https://www.frontiersin.org/articles/10.3389/fpls.2022.1046702/full
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AT gustavoheiden solanummalmeanumapromisingwildrelativeforpotatobreeding