ISHS Acta Horticulturae 789: XV Meeting of the EUCARPIA Tomato Working Group
GENETIC RESOURCES OF LYCOPERSICON AT THE INSTITUTE FOR THE CONSERVATION AND IMPROVEMENT OF AGRODIVERSITY (COMAV) |
| Authors: | F. Nuez, M.J. Díez, J.V. Valcárcel, J. Cebolla-Cornejo, A. Pérez, S. Soler, S. Roselló, A.M. Adalid, L. Galiana, A. Sifres, B. Picó, J.M. Blanca, R. De Frutos |
| Keywords: | regeneration, characterization, evaluation, documentation, wild Lycopersicon species |
| DOI: | 10.17660/ActaHortic.2008.789.39 |
| Abstract:
The Genebank at the COMAV holds nearly 3500 accessions belonging to the Lycopersicon genus. The COMAV coordinates the organization of the genetic resources of vegetable plants in Spain through successive projects funded by the National Institute of Agricultural Research. Different collecting missions were carried out in Peru, Ecuador and Mexico, in collaboration with the Universities of Loja (Ecuador) and Piura (Perú) and 387 accessions of L. pimpinellifolium, 140 of L. peruvianum, 139 of L. hirsutum, 66 of L. parviflorum, approximately 30 of L. cheesmanii, L. chilense and L. pennellii and 13 of L. chmielewskii were collected. The seeds are held in the abovementioned Universities. A large proportion of L. esculentum accessions have been collected in Spain, including the Balearic Islands and the Canary Islands. The seeds at the COMAV Genebank are stored in climatic chambers at 3°C and dried with silicagel. Safety duplicates are stored in black boxes at the "Plant Genetic Resources Center" in Madrid (Spain) and at the "Vegetable Genebank" in Zaragoza (Spain). A large number of accessions have been regenerated and morphologically characterized. The data are published in a Catalogue. Molecular characterization has been performed on a large number of accessions of L. pimpinellifolium, L. esculentum, L. esculentum var. cerasiforme, L. cheesmanii and L. hirsutum, coming from Ecuador and Perú, by using AFLPs, SRAPs and microsatellite markers. Wild species have been characterized for their resistance to Tomato yellow leaf curl virus, Tomato spotted wilt virus and Pepino mosaic virus and for some internal quality characteristics, such as content of glucose, fructose, sucrose, acids, carotenoids and vitamins. The accessions selected have been introduced in the ongoing research lines at the COMAV. | |
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