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Title: Molecular evidence for three genetic species of Dipteryx in the Peruvian Amazon
Authors: García Dávila, Carmen
Aldana Gomero, David
Renno, Jean-François
Díaz Soria, Rossana
Hidalgo Pizango, Gabriel
Flores Llampazo, Gerardo
Castro Ruiz, Diana
Mejía de Loayza, Eduardo
Angulo Chávez, Carlos
Mader, Malte
Tysklind, Niklas
Paredes Villanueva, Kathelyn
Del Castillo Torres, Dennis
Degen, Bernd
Honorio Coronado, Eurídice
Keywords: Dipteryx charapilla
Dipteryx micrantha
Variación genética
Distancia genética
Secuencia de ADN
Madre de Dios
Issue Date: Dec-2019
Publisher: Springer Nature
Citation: Genetica (2019): 1-12
Abstract: There is a high international demand for timber from the genus Dipteryx, or “shihuahuaco” as it is known in Peru. Developing tools that allow the identification and discrimination of Dipteryx species is therefore important for supporting management of natural populations and to underpin legal trade of its timber. The objective of this study was the molecular characterization of Dipteryx species in the Peruvian Amazonia. Two plastid regions (cpDNA: trnH–psbA and matK) were sequenced and 11 microsatellite markers (nDNA) were genotyped for 32 individuals identified as Dipteryx charapilla, D. micrantha morphotype 1 and D. micrantha morphotype 2. Using the concatenated sequences of the plastid genes, we identified ten haplotypes that were not shared between the species or between the D. micrantha morphotypes. Haplotypic diversity was greater in D. micrantha morphotype 2 and D. charapilla than in D. micrantha morphotype 1, which presented only one haplotype with a wide distribution in Peru. The microsatellites allowed the discrimination of the same three clades and identified diagnostic alleles for each clade. These results allowed us to demonstrate that the two morphotypes of D. micrantha are different at both the plastid and nuclear markers, which supports the existence of three genetically distinct species in Peru. This study provides information for the genetic discrimination of Dipteryx species and emphasises the importance of conserving the genetic variability of this genus in the Peruvian Amazonia.
ISSN: 1573-6857
Appears in Collections:Artículos en revistas indexadas

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