Description of morphological characters of wild Lactuca L. spp. genetic resources (English-Czech version)

https://doi.org/10.17221/4461-HORTSCICitation:Doležalová I., Křístková E., Lebeda A., Vinter V. (2002): Description of morphological characters of wild Lactuca L. spp. genetic resources (English-Czech version). Hort. Sci. (Prague), 29: 56-83.
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Of about 100 Lactuca species, there are only 22 represented in world gene bank collections. The description of morphological and other important features of wild lettuce accessions and a correct taxonomic ranging increase their potential successful utilization. A broad study of 22 wild Lactuca species, their morphology, anatomy, karyology, DNA content and isozyme variation, and a search of large number of literature sources (description keys, floras, monographs) provided a base for an elaboration of a descriptor set. This set consists of 88 descriptors and 24 of them are elucidated by figures. It provides a tool for Lactuca species characterization and determination and for a discrimination of an infraspecific variation. Obtained data can be used for description of wild Lactuca genetic resources and also for research purposes.
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