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Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China

Although Manchurian walnut (Juglans mandshurica Maxim) is widely distributed in northeast China, very few studies had been reported on its diversity among different populations. We surveyed 12 J. mandshurica populations in their native habitats across the northeast region of China and profiled 13 fr...

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Autores principales: Li, Zhixin, Wang, Weihuai, Zhang, Haixiao, Liu, Jinhong, Shi, Baoying, Dai, Weizhao, Liu, Kewu, Zhang, Hanguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8866725/
https://www.ncbi.nlm.nih.gov/pubmed/35222478
http://dx.doi.org/10.3389/fpls.2022.820457
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author Li, Zhixin
Wang, Weihuai
Zhang, Haixiao
Liu, Jinhong
Shi, Baoying
Dai, Weizhao
Liu, Kewu
Zhang, Hanguo
author_facet Li, Zhixin
Wang, Weihuai
Zhang, Haixiao
Liu, Jinhong
Shi, Baoying
Dai, Weizhao
Liu, Kewu
Zhang, Hanguo
author_sort Li, Zhixin
collection PubMed
description Although Manchurian walnut (Juglans mandshurica Maxim) is widely distributed in northeast China, very few studies had been reported on its diversity among different populations. We surveyed 12 J. mandshurica populations in their native habitats across the northeast region of China and profiled 13 fruit morphological traits. We found a large degree of variations for these traits, especially for fruit weight (coefficient of variation, or CV of 22.00%), nut weight (CV of 19.42%), and kernel weight (CV of 19.89%). Statistical analysis showed that a large portion of the total variation can be attributed to within-population variation (66.64%), followed by random error (20.96%). We also comprehensively quantified the nutritional composition including fatty acids, amino acids, vitamins, and micronutrients. Similar to fruit morphological traits, we found large variation for most kernel components, which mostly can be explained by within-population variation. Further correlation analysis revealed the dependence of some morphological and nutritional traits on key geographical and ecological factors such as latitude, accumulated temperature, and day length. For instance, a significant positive correlation was found between fruit dimensions and equivalent latitude and precipitation, indicating that such factors should be considered for breeding. Taken together, our data provided a rich dataset for characterizing the variation among J. mandshurica populations and a foundation for selective breeding.
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spelling pubmed-88667252022-02-25 Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China Li, Zhixin Wang, Weihuai Zhang, Haixiao Liu, Jinhong Shi, Baoying Dai, Weizhao Liu, Kewu Zhang, Hanguo Front Plant Sci Plant Science Although Manchurian walnut (Juglans mandshurica Maxim) is widely distributed in northeast China, very few studies had been reported on its diversity among different populations. We surveyed 12 J. mandshurica populations in their native habitats across the northeast region of China and profiled 13 fruit morphological traits. We found a large degree of variations for these traits, especially for fruit weight (coefficient of variation, or CV of 22.00%), nut weight (CV of 19.42%), and kernel weight (CV of 19.89%). Statistical analysis showed that a large portion of the total variation can be attributed to within-population variation (66.64%), followed by random error (20.96%). We also comprehensively quantified the nutritional composition including fatty acids, amino acids, vitamins, and micronutrients. Similar to fruit morphological traits, we found large variation for most kernel components, which mostly can be explained by within-population variation. Further correlation analysis revealed the dependence of some morphological and nutritional traits on key geographical and ecological factors such as latitude, accumulated temperature, and day length. For instance, a significant positive correlation was found between fruit dimensions and equivalent latitude and precipitation, indicating that such factors should be considered for breeding. Taken together, our data provided a rich dataset for characterizing the variation among J. mandshurica populations and a foundation for selective breeding. Frontiers Media S.A. 2022-02-10 /pmc/articles/PMC8866725/ /pubmed/35222478 http://dx.doi.org/10.3389/fpls.2022.820457 Text en Copyright © 2022 Li, Wang, Zhang, Liu, Shi, Dai, Liu and Zhang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Li, Zhixin
Wang, Weihuai
Zhang, Haixiao
Liu, Jinhong
Shi, Baoying
Dai, Weizhao
Liu, Kewu
Zhang, Hanguo
Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China
title Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China
title_full Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China
title_fullStr Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China
title_full_unstemmed Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China
title_short Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China
title_sort diversity in fruit morphology and nutritional composition of juglans mandshurica maxim in northeast china
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8866725/
https://www.ncbi.nlm.nih.gov/pubmed/35222478
http://dx.doi.org/10.3389/fpls.2022.820457
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