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新热带油棕（Mart.）迁地保育种质中花序和花性状的生物统计学变异性

Biometric variability of inflorescence and flower traits among ex situ accessions of the neotropical oilseed palm Mart.

作者信息

Meyer Catherine, Hilger Thomas, Kuki Kalcida Naomi, Motoike Sérgio Yoshimitsu, Cadisch Georg

机构信息

Hans-Ruthenberg-Institute for Tropical Agricultural Sciences University of Hohenheim Stuttgart Germany.

Department of Agronomy Federal University of Viçosa Viçosa Brazil.

出版信息

Ecol Evol. 2024 Jul 30;14(7):e70053. doi: 10.1002/ece3.70053. eCollection 2024 Jul.

DOI:10.1002/ece3.70053
PMID:39081824
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11287079/
Abstract

The oilseed palm genus is suitable for sustainable oil production in South America. The high phenotypic diversity of wild populations poses a challenge for the delimitation of the genus. Comparing the inflorescence architecture, a first-order panicle, and staminate and pistillate flower traits could be a valuable tool in resolving the taxonomic disarray. Thus, this study aims to characterize the differences in the inflorescence architecture and floral structures of three common and economically significant species: , , and . Biometric traits of the inflorescence architecture and floral structures of various accessions in an ex situ germplasm collection in Brazil were assessed. The unweighted pair group method with arithmetic mean (UPGMA) cluster analysis based on the Gower distance was used to measure dissimilarities between the individual plants of the accessions. To our best knowledge, this study provides the first evidence of the presence of second-order rachillae in the genus . Evaluated traits showed a high level of variation within and between accessions, emphasizing the phenotypic diversity of the genus. The accessions of were distinguishable from those of the other two species by their inflorescence architecture and flower traits. The dissimilarities between and were not sufficient to differentiate both. In conclusion, the quantitative assessment of inflorescence and floral traits is a valuable tool for taxonomic resolution of the genus.

摘要

油棕属植物适合在南美洲进行可持续的油脂生产。野生种群的高表型多样性给该属的界定带来了挑战。比较花序结构（一级圆锥花序）以及雄花和雌花的性状可能是解决分类学混乱的一个有价值的工具。因此，本研究旨在描述三种常见且具有经济重要性的物种：[物种1名称]、[物种2名称]和[物种3名称]在花序结构和花结构上的差异。对巴西一个异地种质库中各种种质的花序结构和花结构的生物特征进行了评估。基于Gower距离的算术平均非加权组对法（UPGMA）聚类分析被用于测量种质中各个植株之间的差异。据我们所知，本研究首次提供了该属中存在二级小穗轴的证据。评估的性状在种质内部和种质之间都表现出高度的变异性，突出了该属的表型多样性。[物种1名称]的种质通过其花序结构和花的性状与其他两个物种的种质区分开来。[物种]2和[物种]3之间的差异不足以区分两者。总之，对花序和花性状的定量评估是解决该属分类问题的一个有价值的工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/0068f1774d23/ECE3-14-e70053-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/0129409f7cf8/ECE3-14-e70053-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/4db92335eb50/ECE3-14-e70053-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/ad735102017b/ECE3-14-e70053-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/b1d9a13ee949/ECE3-14-e70053-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/bc23c35d32e1/ECE3-14-e70053-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/801a408f15f1/ECE3-14-e70053-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/eed3cbcffe32/ECE3-14-e70053-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/0068f1774d23/ECE3-14-e70053-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/0129409f7cf8/ECE3-14-e70053-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/4db92335eb50/ECE3-14-e70053-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/ad735102017b/ECE3-14-e70053-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/b1d9a13ee949/ECE3-14-e70053-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/bc23c35d32e1/ECE3-14-e70053-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/801a408f15f1/ECE3-14-e70053-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/eed3cbcffe32/ECE3-14-e70053-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/20b5/11287079/0068f1774d23/ECE3-14-e70053-g005.jpg

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本文引用的文献

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PLoS One. 2021 Jul 20;16(7):e0241025. doi: 10.1371/journal.pone.0241025. eCollection 2021.
2
Delineating species in the speciation continuum: A proposal.在物种形成连续统中界定物种：一项提议。
Evol Appl. 2019 Mar 25;12(4):657-663. doi: 10.1111/eva.12748. eCollection 2019 Apr.
3
Phenotypic plasticity and local adaptation favor range expansion of a Neotropical palm.
表型可塑性和局部适应性有利于一种新热带棕榈的分布范围扩张。
Ecol Evol. 2018 Jul 3;8(15):7462-7475. doi: 10.1002/ece3.4248. eCollection 2018 Aug.
4
2-Alkyl-3-methoxypyrazines are potent attractants of florivorous scarabs (Melolonthidae, Cyclocephalini) associated with economically exploitable Neotropical palms (Arecaceae).2-烷基-3-甲氧基吡嗪是与具有经济开发价值的新热带棕榈科植物相关的食花金龟（鳃金龟科，Cyclocephalini族）的强效引诱剂。
Pest Manag Sci. 2018 Feb 25. doi: 10.1002/ps.4895.
5
Fruit development, growth, and stored reserves in macauba palm (Acrocomia aculeata), an alternative bioenergy crop.大果柯棕（Acrocomia aculeata）作为一种替代生物能源作物的果实发育、生长及储存储备
Planta. 2016 Oct;244(4):927-38. doi: 10.1007/s00425-016-2558-7. Epub 2016 Jun 18.
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Mating System and Genetic Composition of the Macaw Palm (Acrocomia aculeata): Implications for Breeding and Genetic Conservation Programs.金刚鹦鹉棕榈（Acrocomia aculeata）的交配系统与遗传组成：对育种和遗传保护计划的启示
J Hered. 2016 Nov;107(6):527-36. doi: 10.1093/jhered/esw038. Epub 2016 Jun 9.
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Ann Bot. 2013 Nov;112(8):1477-93. doi: 10.1093/aob/mcs252. Epub 2012 Dec 13.
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