Variation in fruits and seeds traits of Saba senegalensis (A. DC.) Pichon along a climatic gradient in Burkina Faso, West Africa: implications for its sustainable management

IF 1.6 3区 农林科学 Q2 AGRONOMY
Sata Diawara, Fidèle Bognounou, Patrice Savadogo, Amadé Ouédraogo
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Abstract

Environmental heterogeneity and genetic variation may be reflected in the within-species variation of different fruit traits. These traits related variations are important for guiding the process of adapting wild plants for human use through domestication. Saba senegalensis (A.DC.) Pichon is a multi-purpose woody liana found throughout sub-Saharan Africa. It has high nutritional and economic values. Yet, limited research has been undertaken to understand the role of genetic status and the environment on the intraspecific variation in S. senegalensis individuals.

This study investigated the variations in fruit and seed traits of S. senegalensis along a climatic gradient in Burkina Faso, sub-Sahara Africa. A total of 900 mature fruits were collected from 180 randomly selected parent trees from six sites along a climatic gradient in the Sudanian and Sudano-sahelian zones. We measured seven fruit traits(length, width, weight, pericarp thickness, number of seeds per fruit, pulp weight, and sugar rate) and three seed traits(length, width, and weight).The data collected was used to calculate broad-sense heritability and we also performed a Random Forest analysis to detect the most influential environmental variables in fruit and seed traits variability. The variation in fruit and seed traits was mainly determined by genetic factors, but all traits were also influenced by environmental factors such as climatic variables. The pulpiest fruit came from the both zones. However, the sweetest fruits originated from the Sudano-sahelian zone. The findings of this study may have practical implications for S. senegalensis management and improvement strategies in Burkina Faso.

Abstract Image

西非布基纳法索 Saba senegalensis (A. DC.) Pichon 果实和种子性状沿气候梯度的变异:对其可持续管理的影响
环境异质性和遗传变异可能反映在不同果实性状的种内变异上。这些与性状相关的变异对于指导野生植物通过驯化适应人类使用的过程非常重要。Saba senegalensis (A.DC.) Pichon 是一种多用途木本藤本植物,分布于撒哈拉以南非洲地区。它具有很高的营养和经济价值。本研究调查了撒哈拉以南非洲布基纳法索气候梯度上 S. senegalensis 果实和种子性状的变化。我们从苏丹和苏丹-萨赫勒地区气候梯度的六个地点随机选取了 180 株母树,共采集了 900 个成熟果实。我们测量了 7 个果实性状(长度、宽度、重量、果皮厚度、单果种子数、果肉重量和糖度)和 3 个种子性状(长度、宽度和重量)。果实和种子性状的变异主要由遗传因素决定,但所有性状也受到气候变量等环境因素的影响。这两个区域的果实果肉最硬。然而,最甜的果实来自苏丹-萨赫勒区。本研究的结果可能对布基纳法索塞内加尔柚的管理和改良策略有实际意义。
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来源期刊
Genetic Resources and Crop Evolution
Genetic Resources and Crop Evolution 农林科学-农艺学
CiteScore
4.10
自引率
10.00%
发文量
178
审稿时长
3 months
期刊介绍: Genetic Resources and Crop Evolution is devoted to all aspects of plant genetic resources research. It publishes original articles in the fields of taxonomical, morphological, physiological, biochemical, genetical, cytological or ethnobotanical research of genetic resources and includes contributions to gene-bank management in a broad sense, that means to collecting, maintenance, evaluation, storage and documentation. Areas of particular interest include: -crop evolution -domestication -crop-weed relationships -related wild species -history of cultivated plants including palaeoethnobotany. Genetic Resources and Crop Evolution also publishes short communications, e.g. newly described crop taxa, nomenclatural notes, reports of collecting missions, evaluation results of gene-bank material etc. as well as book reviews of important publications in the field of genetic resources. Every volume will contain some review articles on actual problems. The journal is the internationalized continuation of the German periodical Die Kulturpflanze, published formerly by the Institute of Plant Genetics and Crop Plant Research at Gatersleben, Germany. All contributions are in the English language and are subject to peer reviewing.
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