植物结构的几何形态计量学,作为一种表型工具,以区分多角菊。和Polylepis racemosa Ruiz&Pav。厄瓜多尔联合造林

IF 0.9 Q4 ECOLOGY Neotropical Biodiversity Pub Date : 2021-01-01 DOI:10.1080/23766808.2021.1906138
Joselin Carolina Caiza Guamba, D. Corredor, C. Galárraga, Jean Pierre Herdoiza, Michelle Santillán, M. C. Segovia-Salcedo
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引用次数: 5

摘要

摘要在厄瓜多尔,原生森林正在逐渐消失。为了缓解这些问题,该国已经实施了几项重新造林计划。为了恢复安第斯森林,从秘鲁引进了总状聚伞属,因为它与印加聚伞属等本土物种相似。该属具有重要的生态功能,有助于减轻当地气候变化的影响。然而,接近自然种群的引进物种的重新造林威胁到了Polylapis原生森林的遗传多样性。从长远来看,它可能会引发杂交过程,并给生态系统保护带来问题。本研究使用几何形态计量学(GM),在伊利尼扎斯生态保护区、莫詹达泻湖和卡扬贝-科卡国家公园三个种群中,利用P.incana和P.raceosa的叶片、气孔、花朵和花粉的形式,快速、经济地区分物种。为了获得数据,对复合叶进行了扫描,对气孔和花粉进行了增加400倍的拍照,对花朵进行了增加100倍的拍照。使用ImageJ软件分别对叶片、气孔、花朵和花粉的15、10、12和9个地标(LM)进行数字化。然后,在MorphoJ软件中对形状变量进行统计分析。结果表明,判别函数分析(DFA)表明,叶片和花朵可以作为区分本属物种的指标,丢弃气孔和花粉。然后,叶和花的典型变分分析(CVA)表明,联合复造林的物种分为两个不同的物种;除了Mojanda种群的花朵,那里有少数个体的交集,它们具有相似的表型特征,因此可以被认为是潜在的杂交个体。这项研究提供了关于在国家保护区系统内外引入的威胁安第斯高地的物种位置的信息。最后,转基因是一种通过形态学特征监测生物多样性和歧视有复杂分类学问题的物种的可利用工具。
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Geometry morphometrics of plant structures as a phenotypic tool to differentiate Polylepis incana Kunth. and Polylepis racemosa Ruiz & Pav. reforested jointly in Ecuador
ABSTRACT In Ecuador, there is a progressive loss of the native forest. To mitigate these problems, several reforestation plans have been carried out in the country. To recover the Andean forest, Polylepis racemosa was introduced from Peru, due to its similarity to native species like Polylepis incana. This genus fulfills important ecological functions that help mitigate the effects of local climate change. However, reforestation of introduced species close to natural populations threatens the genetic diversity of Polylepis native forests. In the long term, it can trigger hybridization processes and create problems for ecosystem conservation. This study used geometry morphometric (GM), to differentiate species quickly and economically, using the form of leaves, stomata, flowers, and pollen of P. incana and P. racemosa in three populations: Illinizas Ecological Reserve, Mojanda Lagoons and Cayambe-Coca National Park. To obtain the data, the composite leaves were scanned, the stomata and pollen were photographed with an increase of 400× and on flowers with 100×. 15, 10, 12, and 9 landmarks (LM) were digitized for leaves, stomata, flowers, and pollen, respectively, using ImageJ software. Then, the shape variables and statistical analysis were performed in MorphoJ software. As a result, it was obtained that the discriminant function analysis (DFA) shows that leaves and flowers can be used as indicators to differentiate species from this genus, discarding stomata and pollen. After that, Canonical Variate Analysis (CVA) of leaves and flowers showed that reforested species jointly are separated into two different species; except for the flowers of the population of Mojanda, where there is an intersection of few individuals, which share similar phenotypic characteristics so they can be considered as potentially hybrid individuals. This study generates information on the location of species introduced inside and outside the National System of Protected Areas that threaten the Andean highlands. Finally, GM is an accessible tool for monitoring biodiversity through morphological characteristics and discriminating against species with complex taxonomic problems.
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来源期刊
Neotropical Biodiversity
Neotropical Biodiversity Environmental Science-Ecology
CiteScore
1.80
自引率
0.00%
发文量
39
审稿时长
24 weeks
期刊最新文献
Caracterización de poblaciones de especies endémicas en bosque tropical seco semideciduo. Parque Nacional Machalilla, Manabí, Ecuador Morphoanatomical leaf traits of herbaceous species raised in a cronosequence of naturally regenerated areas of tropical deciduous forest Hospederos y patrones de prevalencia de parásitos aviares Philornis (Diptera: muscidae) en la costa de Ecuador Vulnerability of elevation-restricted endemic birds of the Cordillera de Talamanca (Costa Rica and Panama) to climate change Reproductive events of birds from Southern Ecuador
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