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New polymorphic nuclear microsatellites from Aristotelia chilensis (Mol.) Stuntz (Elaeocarpaceae)

Version 2 2024-09-18, 23:38
Version 1 2023-05-21, 08:30
journal contribution
posted on 2024-09-18, 23:38 authored by M Cona, MH Castro, P Leon-Lobos, F Correa, Gregory JordanGregory Jordan, A Bastias, B Sagredo, P Hinrichsen

Maqui (Aristotelia chilensis [Molina] Stuntz) is a dioecious small tree native to Chile and southwestern Argentina. This species has gained attention due to its high polyphenol content and anti-oxidant capacity. Nevertheless, genetics studies and information about A. chilensis population genetics are scarce and even contradictory. In fact, the available species-specific simple sequence repeat (SSR) markers are not informative at all, and so we decided to identify and characterize new ones able to trace individual genotypes, a basic tool intended for different genetic studies. We identified and characterized 15 new polymorphic SSR markers for A. chilensis. These markers were evaluated in three populations distributed along 1000 km of Central Chile, exhibiting up to 10 alleles per locus and a combined expected heterozygosity of 0.858. Markers were also informative in two related species, Aristotelia peduncularis (Labill.) Hook. f. and Crinodendron patagua Molina (Elaeocarpaceae), with 13 and six SSRs showing clear amplification patterns, respectively. This new set of SSR markers are highly polymorphic and informative, being the first ones available for the effective fingerprinting of maqui genotypes. A proof of concept of that was the differentiation of six maqui accessions that are under domestication for productive purposes, based on a subset of the polymorphic SSR markers.

History

Publication title

Chilean Journal of Agricultural Research

Volume

800

Issue

2

Pagination

153-160

ISSN

0718-5839

Department/School

Biological Sciences

Publisher

Instituto de Investigaciones Agropecuarias

Publication status

  • Accepted

Place of publication

Chile

Rights statement

Copyright 2020 Instituto de Investigaciones Agropecuarias (INIA)

Socio-economic Objectives

280102 Expanding knowledge in the biological sciences

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