Genetic diversity of Patellifolia patellaris from the Iberian Peninsula, a crop wild relative of cultivated beets

Abstract

The genetic diversity of Patellifolia patellaris has been investigated to generate information required for the organisation of a systematic genetic resources conservation action combining the best elements of the ex situ and in situ conservation concept. To this end, ten occurrences of the species were sampled on the Iberian Peninsula in Portugal and Spain. A total of 271 individuals was analysed using 24 microsatellite markers. The factorial analysis separated the material into two occurrences from Portugal, two occurrences sampled east of Gibraltar and six occurrences from the eastern Spanish coast.

Genetic and Genomic Tools to Asssist Sugar Beet Improvement: The Value of the Crop Wild Relatives

“…The taxonomic inconsistencies within the subfamily Betoideae have been reported (e.g., Ford-Lloyd, 2005 ; Hohmann et al, 2006 ) repeatedly (see Table 1 ). While the taxonomy of Beta section Beta is settled, uncertainties still exists with respect to section Corollinae and the genus Patellifolia (former Beta section Procumbentes ) (Frese, 2010 ; Frese et al, 2017 ).…”

“…An early diversification between Beta (GP1, GP2) and Patellifolia (GP3) is postulated, and within GP1 and GP2 an ecological divergence between West and East Mediterranean Beta species was identified (Romeiras et al, 2016 ). Also, Frese et al ( 2017 ) assessed genetic diversity in P. patellaris revealing that occurrences from Portugal are genetically different from the Spanish ones (Andrello et al, 2017 ), thus highlighting that Portuguese populations may harbor a different genetic variation that could be associated to the restricted coastal areas where they occur. Several genetic diversity studies in sea beet (e.g., Leys et al, 2014 ; Andrello et al, 2016 ) showed a distribution of genetic diversity according to ecogeographical ranges and, recently, discrimination in Portuguese populations from dissimilar habitats were accomplished (Ribeiro et al, 2016 ).…”

Genetic diversity and differentiation in Patellifolia (Amaranthaceae) in the Macaronesian archipelagos and the Iberian Peninsula and implications for genetic conservation programmes

“…The localities were visited by project partners to take plant samples. Further details on the collecting mission are reported by Frese et al (2017b). Information on the geographic origin of the sampled plant species and the material codes used in tables and figures is given in Table 1.…”

“…Furthermore, six occurrences of P. procumbens plus one P. webbiana summing up to a total number of 172 plants were analysed with 22 markers. The descriptor ''population identifier'' and ''site code'' was used in the final report of the GeDiPa project (Frese et al 2017b) and is listed here as a reference. Site codes printed in bold letter indicate the locality of recommended genetic reserves…”

“…Until recently, only few polymorphic microsatellite markers (El Bahloul and Gaboun 2013) were suited to investigate genetic diversity of Patellifolia. Nachtigall et al (2016) developed additional microsatellite markers which were used to study genetic diversity of P. patellaris from the Iberian Peninsula (Frese et al 2017a). The results of a comprehensive analysis of all occurrences of P. patellaris and P. procumbens/P.…”