Old but still good: genetic diversity of ancient pecan genotypes from southern Brazil

In this study, AFLP and S-SAP markers were employed to characterize the genetic diversity of ancient accessions of pecan from southern Brazil. The evaluated plants were selected and preserved by the farmers and are remnants of the first introduction of seedlings from the U.S.A into southern Brazil aiming at developing research towards establishing commercial orchards. High levels of genetic diversity were estimated, suggesting that these plants have an important genetic background for the establishment of a germplasm collection with a wide genetic basis, for the development of breeding programs for this fruit crop. Cluster analysis of the genetic datasets revealed some correlation between the nuts' morphometric traits and genetic markers. Such correlation should be further exploited. These ancient genotypes must be evaluated for other agronomic traits of interest and included in core collections of pecans.PMID:37556714 | DOI:10.1590/0001-3765202320220885

Source: An Acad Bras Cienc - August 9, 2023 Category: Science Authors: Luana O Oliveira Daniele D Santos Dalvan C Beise Tales Poletto Igor Poletto Marlove F B Muniz Joana N O Zeist Valdir M Stefenon Source Type: research