Utilization of Wild Relatives in the Breeding of Tomato and Other Major Vegetables

Ebert, Andreas W.; Schafleitner, Roland

doi:10.1002/9781118854396.ch9

Cited by 19 publications

(18 citation statements)

References 170 publications

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“…Virtually all significant resistance genes to tomato diseases were sourced from wild relatives. An overview of such disease resistance genes introduced from wild species into cultivated tomato was provided by Ebert and Schafleitner [86]. However, it is essential to strengthen similar research in other major and minor vegetable crops as well.…”

Section: Vegetable Genetic Resources As Building Blocks For Vegetablementioning

confidence: 99%

The Role of Vegetable Genetic Resources in Nutrition Security and Vegetable Breeding

Ebert

2020

Plants

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Malnutrition, comprising undernutrition, micronutrient deficiency, and overnutrition, is more widespread than hunger per se and affects most nations around the globe. The diversity and the quality of food produced and consumed are decisive factors when addressing the triple burden of malnutrition. In this context, fruit, vegetables, and nuts are increasingly moving into the focus of the nutrition community. Agricultural policies and investments in agriculture are predominantly focused on staple food production, neglecting the economic and nutritional potential of fruit and vegetables. While global vegetables are well represented in genebanks around the globe, this is much less the case for traditional vegetables. Collecting efforts in hotspots of vegetable diversity in Africa and Asia are required to conserve this germplasm before it is being replaced by modern varieties. Home gardens, community seedbanks, and variety introduction through vegetable seed kits are ways how genebanks can link with the farming community to strengthen the informal seed sector. This in turn may result in more diverse production systems and increased consumption of fruit and vegetables. In the formal seed sector, vegetable breeders need access to a wide diversity of genetic resources, predominantly farmers’ varieties, landraces, and crop wild relatives. Genomics-assisted breeding is increasingly facilitating the introgression of favorable genes and quantitative trait loci (QTLs) with complex inheritance patterns from wild species into cultigens. This will lead to wider use of crop wild relatives in the development of resilient cultivars.

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Section: Vegetable Genetic Resources As Building Blocks For Vegetablementioning

confidence: 99%

The Role of Vegetable Genetic Resources in Nutrition Security and Vegetable Breeding

Ebert

2020

Plants

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“…lycopersicum (SLL) in Mesoamerica (Blanca et al, 2012;Blanca et al, 2015). The fact that SP can freely hybridize with SLL has enabled the incorporation of SP alleles into modern tomato cultivars to improve disease resistance, abiotic stress tolerance and other fruit quality traits (Ebert and Schafleitner, 2015). Due to the importance of SP, draft genome assemblies of two accessions, LA1589 (Tomato Genome Consortium, 2012) and LA0480 (Razali et al, 2018), have been generated using Illumina short-read sequencing technology.…”

Section: Introductionmentioning

confidence: 99%

Genome of Solanum pimpinellifolium provides insights into structural variants during tomato breeding

Wang

Gao

Jiao

et al. 2020

Preprint

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Solanum pimpinellifolium (SP) is the wild progenitor of cultivated tomato. Because of its remarkable stress tolerance and intense flavor, SP has been used as an important germplasm donor in modern breeding of tomato. Here we present a high-quality chromosome-scale genome sequence of SP LA2093. Genome comparison identifies more than 92,000 high-confidence structural variants (SVs) between LA2093 and the modern cultivar, Heinz 1706. Genotyping these SVs in ~600 representative tomato accessions unravels alleles under selection during tomato domestication, improvement and modern breeding, and discovers numerous novel SVs underlying genes known to regulate important breeding traits such as fruit weight and lycopene content.Expression quantitative trait locus (eQTL) analysis detects hotspots harboring master regulators controlling important fruit quality traits, including cuticular wax accumulation and flavonoid biosynthesis, and novel SVs contributing to these complex regulatory networks. The LA2093 genome sequence and the identified SVs provide rich resources for future research and biodiversity-based breeding.

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“…The genetic material from local varieties and their wild relatives is of crucial importance in developing improved varieties, such as for tomatoes. Virtually all significant disease resistant genes have been sourced from wild relatives (Ebert and Schafleitner, 2015). Therefore, breeding of fruit and vegetable varieties must be supported by conservation and characterization of their genetic diversity combined with that of their wild relatives.…”

Section: Conservationmentioning

confidence: 99%

Fruit and vegetables

Beed¹,

Taguchi²,

Telemans³

et al. 2021

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The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) or the Agricultural Research Centre for International Development (CIRAD) concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO or CIRAD in preference to others of a similar nature that are not mentioned.The views expressed in this information product are those of the author(s) and do not necessarily reflect the views or policies of FAO or CIRAD.

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Utilization of Wild Relatives in the Breeding of Tomato and Other Major Vegetables

Cited by 19 publications

References 170 publications

The Role of Vegetable Genetic Resources in Nutrition Security and Vegetable Breeding

The Role of Vegetable Genetic Resources in Nutrition Security and Vegetable Breeding

Genome of Solanum pimpinellifolium provides insights into structural variants during tomato breeding

Fruit and vegetables

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