caa a22 4500 44532418X CHVBK 20180317142714.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10681-011-0432-z doi (NATIONALLICENCE)springer-10.1007/s10681-011-0432-z Diversity in root architecture and response to P deficiency in seedlings of Cucumis melo L [Elektronische Daten] [Ana Fita, Fernando Nuez, Belén Picó] Breeding for more phosphorus (P)-efficient crops is one strategy to reduce the use of P fertilizers, thus mitigating the environmental and economic impacts of agriculture. Variation in root architecture and the response to P deficiency were studied in C. melo. Forty accessions representing genetic diversity within the species were screened for their root systems in normal and deficient P conditions at the seedling stage. Various parameters of P-uptake and P-use were analyzed in a subset of accessions at 40days. Significant differences in root architecture were observed, with the taproot systems prevailing among the wild and exotic accessions, and more branched root systems in cultivated stocks. Moreover, differences in the plastic response of roots to P starvation were observed. Variation in different P-use and -uptake traits correlated with the root architecture. Within ssp. melo, the inodorus and flexuosus landraces had larger and more branched roots and more efficient P-uptake, thereby providing a close genepool for breeding. Within ssp. agrestis, conomon and momordica accessions can be sources of interest for the enhancement of variation in root architecture and P-use efficiency into cultivated melons. Therefore, the diversity observed within C. melo species could be useful in breeding P-efficient melon cultivars. Springer Science+Business Media B.V., 2011 Root length nationallicence P-use efficiency nationallicence P-uptake efficiency nationallicence AFLPs : Amplified fragment length polymorphisms nationallicence ICP : Inductively coupled plasma nationallicence QTL : Quantitative trait loci nationallicence Fita Ana COMAV, Universitat Politècnica de València, Camino de Vera, 8E, Escalera J, CP 46022, Valencia, Spain aut Nuez Fernando COMAV, Universitat Politècnica de València, Camino de Vera, 8E, Escalera J, CP 46022, Valencia, Spain aut Picó Belén COMAV, Universitat Politècnica de València, Camino de Vera, 8E, Escalera J, CP 46022, Valencia, Spain aut Euphytica Springer Netherlands 181/3(2011-10-01), 323-339 0014-2336 181:3<323 2011 181 10681 https://doi.org/10.1007/s10681-011-0432-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0432-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fita Ana COMAV, Universitat Politècnica de València, Camino de Vera, 8E, Escalera J, CP 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Nuez Fernando COMAV, Universitat Politècnica de València, Camino de Vera, 8E, Escalera J, CP 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Picó Belén COMAV, Universitat Politècnica de València, Camino de Vera, 8E, Escalera J, CP 46022, Valencia, Spain aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 181/3(2011-10-01), 323-339 0014-2336 181:3<323 2011 181 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer