000151363 001__ 151363
000151363 005__ 20251017144627.0
000151363 0247_ $$2doi$$a10.3390/agronomy11061121
000151363 0248_ $$2sideral$$a127254
000151363 037__ $$aART-2021-127254
000151363 041__ $$aeng
000151363 100__ $$aChikh-Rouhou H.
000151363 245__ $$aAssessing the genetic diversity and population structure of a tunisian melon (Cucumis melo l.) collection using phenotypic traits and ssr molecular markers
000151363 260__ $$c2021
000151363 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151363 5203_ $$aThe assessment of genetic diversity and structure of a gene pool is a prerequisite for efficient organization, conservation, and utilization for crop improvement. This study evaluated the genetic diversity and population structure of 24 Tunisian melon accessions, by using 24 phenotypic traits and eight microsatellite (SSR) markers. A considerable phenotypic diversity among accessions was observed for many characters including those related to agronomical performance. All the microsatellites were polymorphic and detected 30 distinct alleles with a moderate (0.43) polymorphic information content. Shannon’s diversity index (0.82) showed a high degree of polymorphism between melon genotypes. The observed heterozygosity (0.10) was less than the expected heterozygosity (0.12), displaying a deficit in heterozygosity because of selection pressure. Molecular clustering and structure analyses based on SSRs separated melon accessions into five groups and showed an intermixed genetic structure between landraces and breeding lines belonging to the different botanical groups. Phenotypic clustering separated the accessions into two main clusters belonging to sweet and non-sweet melon; however, a more precise clustering among inodorus, cantalupensis, and reticulatus subgroups was obtained using combined phenotypic–molecular data. The discordance between phenotypic and molecular data was confirmed by a negative correlation (r = -0.16, p = 0.06) as revealed by the Mantel test. Despite these differences, both markers provided important information about the diversity of the melon germplasm, allowing the correct use of these accessions in future breeding programs. Together they provide a powerful tool for future agricultural and conservation tasks.
000151363 536__ $$9info:eu-repo/grantAgreement/ES/DGA/A11-20R-PROVESOS$$9info:eu-repo/grantAgreement/ES/MCIU-FEDER/AGL2017-85563-C2-2-R
000151363 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000151363 590__ $$a3.949$$b2021
000151363 591__ $$aAGRONOMY$$b18 / 90 = 0.2$$c2021$$dQ1$$eT1
000151363 591__ $$aPLANT SCIENCES$$b55 / 239 = 0.23$$c2021$$dQ1$$eT1
000151363 592__ $$a0.654$$b2021
000151363 593__ $$aAgronomy and Crop Science$$c2021$$dQ1
000151363 594__ $$a3.9$$b2021
000151363 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151363 700__ $$aMezghani N.
000151363 700__ $$aMnasri S.
000151363 700__ $$aMezghani N.
000151363 700__ $$0(orcid)0000-0002-6727-5928$$aGarcés-Claver A.
000151363 773__ $$g11, 6 (2021), 1121 [17 pp.]$$pAgronomy (Basel)$$tAgronomy (Basel)$$x2073-4395
000151363 8564_ $$s411505$$uhttps://zaguan.unizar.es/record/151363/files/texto_completo.pdf$$yVersión publicada
000151363 8564_ $$s2761455$$uhttps://zaguan.unizar.es/record/151363/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151363 909CO $$ooai:zaguan.unizar.es:151363$$particulos$$pdriver
000151363 951__ $$a2025-10-17-14:24:53
000151363 980__ $$aARTICLE