Multivariate analysis of morphological variables in tamarind (Tamarindus indica L.).

IF 4.3 2区 生物学 Q1 PLANT SCIENCES
Ali Khadivi, Farhad Mirheidari, Abdolvahid Saeidifar, Younes Moradi, Yazgan Tunç
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Abstract

Background: Tamarind (Tamarindus indica L.) is a tree belonging to the Fabaceae family. This tree grows in subtropical and semi-arid tropical regions, and it is particularly common in India, Africa, and Southeast Asia. In this study, the morphological variations of 55 tamarind accessions collected from two areas of Sistan-va-Baluchestan province in Iran were evaluated using correlation matrix, principal component, and hierarchical cluster analyses based on 61 variables.

Results: One-way ANOVA (p < 0.05) showed significant differences among the examined accessions. The coefficient of variation (CV) ranged from 8.50% (lateral petal width) to 110.44% (flesh adherence to skin). 45 out of 61 traits (73.77% in total) had a CV greater than 20.00%. This value indicated that there was a high degree of variation among the examined accessions. Leaf length ranged from 35.38 to 97.68 mm, leaf width from 17.98 to 33.65 mm, fruit length ranged from 33.23 to 127.24 mm, and fruit seed weight from 0.65 to 9.79 g. Tree growth vigor, tree height, and branch flexibility were dominant with high values (28, 33, and 29 accessions, respectively). Peak of fruiting season was classified as late-April (15 accessions) and early-May (40 accessions). The obtained correlation data indicated significant relationships between leaf length and leaf width (r = 0.646**), fruit length and fruit weight (r = 0.710**), as well as fruit length and fruit seed weight (r = 0.599**). According to the principal component analysis, the first 17 principal components explained 83.28% of the total variation. The accessions are distributed across the four regions of the scatter plot. There were 15 accessions in cluster 1, 11 accessions in cluster 2, 18 accessions in cluster 3, and 11 accessions in cluster 4. According to the hierarchical cluster analysis, four clusters were formed, with the highest number of accessions in the B2 subgroup (34 accessions). The first 20 accessions were determined based on their individual quantitative trait performances, with the best results listed as follows: Bahoukalat-37, Bahoukalat-36, Bahoukalat-31, Bahoukalat-33, Tis-10, Bahoukalat-32, Bahoukalat-2, Bahoukalat-16, Bahoukalat-1, Tis-8, Bahoukalat-4, Bahoukalat-10, Tis-7, Bahoukalat-6, Bahoukalat-3, Bahoukalat-34, Tis-1, Bahoukalat-5, and Bahoukalat-29, respectively.

Conclusions: This study addresses key gaps in tamarind research, offering important insights into its genetic diversity and morphological traits. The results are expected to be a valuable resource for plant breeding programs, supporting the development of more adaptable and sustainable tamarind varieties. Further studies on accessions from diverse ecological conditions could deepen our understanding of its genetic diversity and aid future breeding efforts.

罗望子(Tamarindus indica L.)形态变量的多变量分析。
背景:罗望子(Tamarindus indica L.)是一种豆科植物。这种树生长在亚热带和半干旱的热带地区,在印度、非洲和东南亚特别常见。本研究采用相关矩阵、主成分分析和基于61个变量的层次聚类分析方法,对伊朗锡斯坦-俾路支斯坦省两个地区55份罗望子材料的形态差异进行了评价。结论:该研究填补了罗望子研究的关键空白,为罗望子的遗传多样性和形态特征提供了重要的见解。研究结果有望成为植物育种计划的宝贵资源,支持开发适应性更强、可持续发展的罗望子品种。对不同生态条件下的选育材料进行进一步的研究,可以加深我们对其遗传多样性的认识,为今后的育种工作提供帮助。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
BMC Plant Biology
BMC Plant Biology 生物-植物科学
CiteScore
8.40
自引率
3.80%
发文量
539
审稿时长
3.8 months
期刊介绍: BMC Plant Biology is an open access, peer-reviewed journal that considers articles on all aspects of plant biology, including molecular, cellular, tissue, organ and whole organism research.
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