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Artículo

Epigenetic consequences of interploidal hybridisation in synthetic and natural interspecific potato hybrids

Cara, NicolásIcon ; Ferrer, María SoledadIcon ; Masuelli, Ricardo WilliamsIcon ; Camadro, Elsa LucilaIcon ; Marfil, Carlos FedericoIcon
Fecha de publicación: 06/2019
Editorial: Wiley Blackwell Publishing, Inc
Revista: New Phytologist
ISSN: 0028-646X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biotecnología Agrícola y Biotecnología Alimentaria

Resumen

Interploidal hybridisation can generate changes in plant chromosome numbers, which might exert effects additional to the expected due to genome merger per se (i.e., genetic, epigenetic and phenotypic novelties).Wild potatoes are suitable to address this question in an evolutionary context. To this end, we performed genetic (AFLP and SSR), epigenetic (MSAP), and cytological comparisons in: i) natural populations of the diploid cytotype of the hybrid taxonomic species Solanum x rechei (2n=2x, 3x) and its parental species, the triploid cytotype of Solanum microdontum (2n=2x, 3x) and Solanum kurtzianum (2n=2x); and ii) newly synthesised intraploidal (2x x 2x) and interploidal (3x x 2x) S. microdontum x S. kurtzianum hybrids.Aneuploidy was detected in S. x rechei and the synthetic interploidal progeny; this phenomenon might have originated the significantly higher number of methylation changes observed in the interploidal vs. the intraploidal hybrids. The wide epigenetic variability induced by interploidal hybridisation is consistent with the novel epigenetic pattern established in S. x rechei compared to its parental species in nature.These results suggest that aneuploid potato lineages can persist throughout the short term, and possibly medium term, and that differences in parental ploidy resulting in aneuploidy are an additional source of epigenetic variation.
Palabras clave: ANEUPLOIDY , CROP WILD RELATIVES , DNA METHYLATION , INTROGRESSION , SOLANUM SECTION PETOTA , SOLANUM KURTZIANUM , SOLANUM MICRODONTUM , SOLANUM X RECHEI
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/105208
DOI: http://dx.doi.org/10.1111/nph.15706
URL: https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.15706
Colecciones
Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Articulos(IBAM)
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Citación
Cara, Nicolás; Ferrer, María Soledad; Masuelli, Ricardo Williams; Camadro, Elsa Lucila; Marfil, Carlos Federico; Epigenetic consequences of interploidal hybridisation in synthetic and natural interspecific potato hybrids; Wiley Blackwell Publishing, Inc; New Phytologist; 222; 4; 6-2019; 1981-1993
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