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Morphoagronomic characterization and wholegenome resequencing of eight highly diverse wild and weedy *** and *** *** accessions used for the first interspecific tomato MAGIC population

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Horticulture Research 2020年第1期7卷 477-492页

作者： Pietro Gramazio Leandro Pereira-Dias Santiago Vilanova Jaime Prohens Salvador Soler Javier Esteras alfonso garmendia María JoséDíez Faculty of Life and Environmental Sciences University of Tsukuba1-1-1 Tennodai305-8572 TsukubaJapan Instituto de Conservación y Mejora de la Agrodiversidad Valenciana Universitat Politècnica de ValènciaCamino de Vera 1446022 ValenciaSpain Departamento de Ecosistemas Agroforestales Universitat Politècnica de ValènciaCamino de Vera 1446022 ValenciaSpain Instituto Agroforestal Mediterráneo Universitat Politècnica de ValènciaCamino de Vera 1446022 ValenciaSpain

The wild Solanum pimpinellifolium(SP)and the weedy *** ***(SLC)are largely unexploited genetic reservoirs easily accessible to breeders,as they are fully cross-compatible with cultivated tomato(*** ***).We performed a comprehensive morphological and genomic characterization of four wild SP and four weedy SLC accessions,selected to maximize the range of variation of both *** eight accessions are the founders of the first tomato interspecific multi-parent advanced generation inter-cross(MAGIC)*** morphoagronomic characterization was carried out with 39 descriptors to assess plant,inflorescence,fruit and agronomic traits,revealing the broad range of diversity *** of the morphological variation observed in SP was likely associated to the adaptation of the accessions to different environments,while in the case of SLC to both human activity and adaptation to the ***-genome resequencing of the eight accessions revealed over 12 million variants,ranging from 1.2 to 1.9 million variants in SLC and from 3.1 to 4.8 million in SP,being 46.3%of them(4,897,803)private *** genetic principal component analysis also confirmed the high diversity of SP and the complex evolutionary history of *** was also reflected in the analysis of the potential footprint of common ancestors or old introgressions identified within and between the two *** functional characterization of the variants revealed a significative enrichment of GO terms related to changes in cell walls that would have been negatively selected during domestication and *** comprehensive morphoagronomic and genetic characterization of these accessions will be of great relevance for the genetic analysis of the first interspecific MAGIC population of tomato and provides valuable knowledge and tools to the tomato community for genetic and genomic studies and for breeding purposes.

关键词： agronomic breeding MAGIC

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