title: The population structure and diversity of eggplant from Asia and the Mediterranean Basin.
abstract: A collection of 238 eggplant breeding lines, heritage varieties and selections within local landraces provenanced from Asia and the Mediterranean Basin was phenotyped with respect to key plant and fruit traits, and genotyped using 24 microsatellite loci distributed uniformly throughout the genome. STRUCTURE analysis based on the genotypic data identified two major sub-groups, which to a large extent mirrored the provenance of the entries. With the goal to identify true-breeding types, 38 of the entries were discarded on the basis of microsatellite-based residual heterozygosity, along with a further nine which were not phenotypically uniform. The remaining 191 entries were scored for a set of 19 fruit and plant traits in a replicated experimental field trial. The phenotypic data were subjected to principal component and hierarchical principal component analyses, allowing three major morphological groups to be identified. All three morphological groups were represented in both the "Occidental" and the "Oriental" germplasm, so the correlation between the phenotypic and the genotypic data sets was quite weak. The relevance of these results for evolutionary studies and the further improvement of eggplant are discussed. The population structure of the core set of germplasm shows that it can be used as a basis for an association mapping approach.
authors.affiliation: DISAFA - Plant Genetics and Breeding, University of Torino, Grugliasco, Torino, Italy ; CRA-ORL - Research Unit for Vegetable Crops, Montanaso Lombardo, Lodi, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Cericola
authors.forename: Ezio
authors.initials: E
authors.lastname: Portis
authors.forename: Laura
authors.initials: L
authors.lastname: Toppino
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Barchi
authors.forename: Nazareno
authors.initials: N
authors.lastname: Acciarri
authors.forename: Tommaso
authors.initials: T
authors.lastname: Ciriaci
authors.forename: Tea
authors.initials: T
authors.lastname: Sala
authors.forename: Giuseppe Leonardo
authors.initials: GL
authors.lastname: Rotino
authors.forename: Sergio
authors.initials: S
authors.lastname: Lanteri
mesh_terms: D001208:Asia; D001947:Breeding; D014644:Genetic Variation; D005828:Genetics, Population; D018745:Genome, Plant / Q000235:genetics; D005838:Genotype; D019083:Mediterranean Region; D018895:Microsatellite Repeats / Q000235:genetics*; D010641:Phenotype; D025341:Principal Component Analysis; D032323:Solanum melongena / Q000033:anatomy & histology* / Q000145:classification / Q000235:genetics*; D013045:Species Specificity
references.citation: J Hered. 2001 Jan-Feb;92(1):93-4
references.pmid: 11336240
references.citation: Proc Natl Acad Sci U S A. 2008 Sep 16;105(37):13701-2
references.pmid: 18784363
references.citation: Mol Ecol. 2005 Jul;14(8):2611-20
references.pmid: 15969739
references.citation: Mol Phylogenet Evol. 2012 Jun;63(3):685-701
references.pmid: 22387533
references.citation: J Agric Food Chem. 2005 Aug 10;53(16):6272-5
references.pmid: 16076105
references.citation: Theor Appl Genet. 1995 May;90(6):767-70
references.pmid: 24172917
references.citation: Genetics. 2000 Jun;155(2):945-59
references.pmid: 10835412
references.citation: Genome. 2010 Oct;53(10):805-15
references.pmid: 20962887
references.citation: Genet Mol Res. 2011 Jun 14;10(2):1141-55
references.pmid: 21710466
references.citation: Theor Appl Genet. 2002 Aug;105(2-3):182-191
references.pmid: 12582518
references.citation: J Agric Food Chem. 2010 Jul 14;58(13):7597-603
references.pmid: 20527988
references.citation: Theor Appl Genet. 2006 Mar;112(5):977-83
references.pmid: 16402186
references.citation: PLoS One. 2012;7(7):e41748
references.pmid: 22848589
references.citation: Plant J. 2004 Apr;38(1):193-202
references.pmid: 15053772
references.citation: PLoS One. 2012;7(8):e43740
references.pmid: 22912903
references.citation: Proc Natl Acad Sci U S A. 1991 May 15;88(10):4494-7
references.pmid: 11607182
references.citation: Plant Foods Hum Nutr. 1997;51(4):321-30
references.pmid: 9650725
references.citation: Ann Bot. 2008 Dec;102(6):891-7
references.pmid: 18819950
references.citation: BMC Genomics. 2008 Jul 30;9:357
references.pmid: 18667065
references.citation: Evolution. 2002 Oct;56(10):1921-30
references.pmid: 12449479
references.citation: Trends Plant Sci. 2007 Feb;12(2):57-63
references.pmid: 17224302
references.citation: Theor Appl Genet. 2009 Mar;118(5):927-35
references.pmid: 19132336
references.citation: PLoS One. 2013;8(2):e57039
references.pmid: 23451138
references.citation: J Leukoc Biol. 2005 Mar;77(3):337-43
references.pmid: 15601667
references.citation: BMC Plant Biol. 2008 Apr 02;8:31
references.pmid: 18384667
references.citation: Cancer Res. 1967 Feb;27(2):209-20
references.pmid: 6018555
references.citation: J Agric Food Chem. 2010 Mar 24;58(6):3371-9
references.pmid: 20187646
references.citation: Theor Appl Genet. 2013 Feb;126(2):289-305
references.pmid: 22983567
references.citation: Theor Appl Genet. 2012 May;124(8):1403-13
references.pmid: 22301906
references.citation: Genome. 1993 Feb;36(1):181-6
references.pmid: 18469981
references.citation: Food Chem Toxicol. 2010 Oct;48(10):3017-21
references.pmid: 20691749
references.citation: J Agric Food Chem. 2012 Nov 28;60(47):11821-31
references.pmid: 23134376
references.citation: Clin Chim Acta. 2003 Feb;328(1-2):39-44
references.pmid: 12559597
references.citation: Theor Appl Genet. 2009 Oct;119(6):1143-53
references.pmid: 19662343
references.citation: Food Funct. 2011 Jul;2(7):395-9
references.pmid: 21894326
references.citation: Int J Food Sci Nutr. 2004 Aug;55(5):423-9
references.pmid: 15545051
references.citation: Theor Appl Genet. 1999 Aug;99(3-4):626-33
references.pmid: 22665198
references.citation: Genet Mol Res. 2010 Aug 10;9(3):1568-76
references.pmid: 20714999
references.citation: PLoS One. 2012;7(11):e47659
references.pmid: 23155371