Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina

IF 1.1 4区 农林科学 Q3 FORESTRY Silvae Genetica Pub Date : 2020-01-01 DOI:10.2478/sg-2020-0007
C. Vega, I. Teich, M. Acosta, D. L. Lauenstein, A. Verga, A. Cosacov
{"title":"Morphological and molecular characterization of a hybrid zone between Prosopis alba and P. nigra in the Chaco region of northwestern Argentina","authors":"C. Vega, I. Teich, M. Acosta, D. L. Lauenstein, A. Verga, A. Cosacov","doi":"10.2478/sg-2020-0007","DOIUrl":null,"url":null,"abstract":"Abstract The Gran Chaco is the largest dry forest in South America. One of the key taxa of this biome is the genus Prosopis (Fabaceae) which contains several economically important species. One of the characteristics of this genus is its natural capacity to exchange genetic information among congeneric species, generating zones of high morphological and genetic variability at contact points. The study and management of these contact areas can contribute to the dynamic conservation of these native genetic resources. In this study, we analysed three sites within a gradient of land aridity, where P. nigra and P. alba grow in sympatry and apparently hybridize. This is the first study performed in both, Prosopis pure sites and hybrid swarm, which includes a spatially explicit approach and simultaneously analyses fruit and leaf morphological variation, together with molecular information (microsatellites markers). We performed a multivariate morphological analysis, Bayesian genetic clustering and multivariate associations between genetic and morphological variability in the pure parental populations and in the hybrid swarm, considering possible spatial autocorrelation. Bayesian cluster analysis revealed two distinct groups corresponding to each species, differentiating the pure morphotypes from sites 1 and 2. Site 3, corresponding to the hybrid swarm, was composed of pure P. alba and P. nigra trees and hybrid individuals. We found morphological and molecular evidence of hybridization between P. alba and P. nigra, and detected novel phenotypes in the hybrid site.","PeriodicalId":21834,"journal":{"name":"Silvae Genetica","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Silvae Genetica","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.2478/sg-2020-0007","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FORESTRY","Score":null,"Total":0}
引用次数: 4

Abstract

Abstract The Gran Chaco is the largest dry forest in South America. One of the key taxa of this biome is the genus Prosopis (Fabaceae) which contains several economically important species. One of the characteristics of this genus is its natural capacity to exchange genetic information among congeneric species, generating zones of high morphological and genetic variability at contact points. The study and management of these contact areas can contribute to the dynamic conservation of these native genetic resources. In this study, we analysed three sites within a gradient of land aridity, where P. nigra and P. alba grow in sympatry and apparently hybridize. This is the first study performed in both, Prosopis pure sites and hybrid swarm, which includes a spatially explicit approach and simultaneously analyses fruit and leaf morphological variation, together with molecular information (microsatellites markers). We performed a multivariate morphological analysis, Bayesian genetic clustering and multivariate associations between genetic and morphological variability in the pure parental populations and in the hybrid swarm, considering possible spatial autocorrelation. Bayesian cluster analysis revealed two distinct groups corresponding to each species, differentiating the pure morphotypes from sites 1 and 2. Site 3, corresponding to the hybrid swarm, was composed of pure P. alba and P. nigra trees and hybrid individuals. We found morphological and molecular evidence of hybridization between P. alba and P. nigra, and detected novel phenotypes in the hybrid site.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
阿根廷西北部查科地区白颡鱼与黑颡鱼杂交带的形态和分子特征
大查科是南美洲最大的干燥森林。该生物群系的关键分类群之一是豆豆属(豆科),其中包含几个重要的经济物种。该属的一个特征是其在同类物种之间交换遗传信息的自然能力,在接触点产生高形态和遗传变异区。对这些接触区域的研究和管理有助于这些本地遗传资源的动态保护。在这项研究中,我们分析了在一个土地干旱梯度内的三个地点,在那里黑桫椤和白桫椤共生生长并明显杂交。这是第一次在纯地点和杂交群体中进行的研究,包括空间明确的方法,同时分析果实和叶片的形态变化,以及分子信息(微卫星标记)。考虑到可能的空间自相关性,我们对纯亲本群体和杂交群体的遗传和形态变异进行了多变量形态学分析、贝叶斯遗传聚类和多变量相关性分析。贝叶斯聚类分析显示,每个物种对应两个不同的类群,与位点1和2的纯形态相区分。位点3为杂交群,由纯白桦和黑桫椤树和杂交个体组成。我们在形态学和分子生物学上发现了白桦和黑桫椤杂交的证据,并在杂交位点发现了新的表型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Silvae Genetica
Silvae Genetica 农林科学-林学
CiteScore
2.20
自引率
10.00%
发文量
10
审稿时长
3 months
期刊介绍: Silvae Genetica is an international peer reviewed journal with more than 65 year tradition and experience in all fields of theoretical and applied Forest Genetics and Tree breeding. It continues "Zeitschrift für Forstgenetik und Forstpflanzenzüchtung" (Journal of Forest Genetics and Forest Tree Breeding) founded by W. LANGNER in 1951.
期刊最新文献
Identification of superior hybrid clones for fibre biometry in Eucalyptus camaldulensis × E. tereticornis using multi trait stability index A Novel Set of Chloroplast SSR Markers for the Genus Juglans Reveals Within Species Differentiation An improved and effective DNA extraction protocol for Pyracantha crenulata with optimal PCR reliability Accuracy Evaluation of Visible-Near Infrared Spectroscopy for Detecting Insect Damage in Acorns of Quercus acuta High-molecular-weight DNA extraction for broadleaved and conifer tree species
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1