Morphological and Molecular Characterization of Zanthoxylum zanthoxyloides (Rutaceae) from Burkina Faso

被引:8
作者
Ouedraogo, Lassane [1 ,2 ]
Fuchs, Dominik [3 ]
Schaefer, Hanno [3 ]
Kiendrebeogo, Martin [2 ]
机构
[1] CNRST, Inst Environm & Rech Agr, 03 BP 7047, Ouagadougou 03, Burkina Faso
[2] Univ Joseph Ki Zerbo, Lab Biochim & Chim Appl, 09 BP 848, Ouagadougou 03, Burkina Faso
[3] Tech Univ Munich, Plant Biodivers Res, Emil Ramann Str 2, D-85354 Freising Weihenstephan, Germany
来源
PLANTS-BASEL | 2019年 / 8卷 / 09期
关键词
Burkina Faso; genetic diversity; morphological characterization; Zanthoxylum zanthoxyloides; BIOGEOGRAPHY; PHYLOGENY; MOUNTAINS; TREE;
D O I
10.3390/plants8090353
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Zanthoxylum zanthoxyloides is a West African forest tree that is used for example against malaria and sickle cell anemia in Burkina Faso. The goal of this study was to analyze the genetic and morphological diversity of the species within wild populations in Burkina Faso, where it is potentially under threat due to the uncontrolled harvesting of its roots. Seventy-two trees from three different sites in Southwestern Burkina Faso were analyzed. Each tree was characterized by 12 traits specifying the period of flowering and maturity as well as morphological characteristics of the stem, leaves, and seeds. The molecular analysis was performed using two plastid DNA regions (psbA-trnH and trnL-trnF) and two nuclear regions (GBSSI and ITS) to identify the genetic diversity of the species for further development of a management plan for ex situ reproduction and in situ conservation. We found variability in morphological traits correlating with the geographic distance of the study sites. The molecular analysis, in contrast, revealed hardly any genetic variability among the tested trees and no population structure. Whether the differences in morphological traits are caused by different environmental conditions or by genetic variability in genes linked to morphological traits needs further testing. The apparent lack of genetic differentiation suggests that germplasm throughout the study region is suitable for planting in conservation actions. Efficient conservation management should involve local communities, especially those interested in traditional medicine.
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页数:15
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