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Molecular evidence for three genetic species of Dipteryx in the Peruvian Amazon
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...
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Published in: | Genetica 2020-02, Vol.148 (1), p.1-11 |
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Main Authors: | , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | 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
mat
K) 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. |
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ISSN: | 0016-6707 1573-6857 |
DOI: | 10.1007/s10709-019-00082-2 |