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Evaluation of genetic diversity and root traits of sea beet accessions of the Adriatic Sea coast |
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| Authors: | Piergiorgio Stevanato Daniele Trebbi Enrico Biancardi Giovanni Cacco J Mitchell McGrath Massimo Saccomani |
| Institution: | 1. DAFNAE, Dipartimento di Agronomia Animali Alimenti Risorse Naturali e Ambiente, Universit?? degli Studi di Padova, Viale dell??Universit?? 16, 35020, Legnaro, Italy 2. CRA-CIN, Centro di Ricerca per le Colture Industriali Sede distaccata di Rovigo, Viale Amendola 82, 45100, Rovigo, Italy 3. USDA-ARS, Sugar Beet and Bean Research Unit, 494 PSSB, Michigan State University, East Lansing, MI, 48824-1325, USA |
| Abstract: | Thirty-nine sea beet Beta vulgaris L. ssp. maritima (L.) Arcang.] accessions of the Adriatic coast were screened genetically and for their adaptive morpho-functional root traits in order to identify new sources of abiotic resistances for sugar beet breeding programs. Genetic diversity was evaluated with 21 microsatellites markers that identified 44 polymorphic alleles. Sea beets grouped into two main clusters: the West and the East Adriatic coast groups, with the latter showing higher genetic diversity. Among sea beet accessions with desirable root traits, four accessions have proved to be interesting for sugar beet B. vulgaris (L.) ssp. vulgaris] breeding aimed to improve tolerance to nutritional stresses. Lastovo (ID 29) and Zut (ID 34) accessions were characterized by the highest values of RER, TRL, FRL and RSA still maintaining a high value of RTD, while Grado (ID 21) an Portic (ID 23) accessions were characterized by the highest RTD, but with low values of RER, TRL, FRL and RSA parameters. |
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