The origin of the serpentine endemic Minuartia laricifolia subsp. ophiolitica by vicariance and competitive exclusion
The origin of the serpentine endemic Minuartia laricifolia subsp. ophiolitica by vicariance and competitive exclusion
复制标题
蛇纹石特有种落叶松叶蛇绿亚种的起源与竞争排斥
DOI：
10.1111/mec.12266
复制
发表时间：
2013
影响因子：
4.9
通讯作者：
Kadereit
中科院分区：
文献类型：
--
作者：
Merges;Kadereit
肥沃的土壤孕育着一种独特的植物群，这种植物群富含特有植物。我们研究了Minuartia laricifolia的蛇纹石特有种的演化，它有两个生态上不同的亚种，间断分布：subsp.laricifoliaon硅质岩在阿尔卑斯山西部和比利牛斯山东部和subsp.ophioliticaon蛇纹石在亚平宁山脉北方。通过对30个居群的AFLP和叶绿体序列分析，探讨了它们之间的关系以及第四纪气候变化对它们的分布和生态的影响，结果表明，落叶松叶微囊藻（Minuartia laricifolia）可分为4个类群，其中1个类群仅由蛇珊瑚亚属（subsp.ophiolitica）组成，而落叶松叶亚属（subsp.laricifolia）则分为3个类群：滨海阿尔卑斯山（Maritime Alps）、西北阿尔卑斯山（northe-western Alps）和中部阿尔卑斯山（Central Alps）。在相邻连接树中回收了相同的组，尽管subsp. ophiolitica嵌套在subsp. laricifolia的海洋阿尔卑斯山脉组中。ophiolitica亚种包含三种不同的叶绿体单倍型，这些单倍型也在laricifolia亚种的滨海阿尔卑斯山群中发现。鉴于其高度的遗传多样性，subsp. ophiolitica似乎是从subsp.laricifoliaby vacariance而不是通过长距离扩散产生的。遗传和地理证据指向海洋阿尔卑斯山种群的亚种。laricifoliaas最近的亲戚subsp. ophiolitica。我们假设，在冰川时期，当植被更加开放时，落叶松也能够在亚平宁山脉北方的非蛇纹石岩石上生长，但只有适应蛇纹石的种群能够持续到现在，因为它们被更有利的栖息地竞争排斥。
Serpentine soils harbour a unique flora that is rich in endemics. We examined the evolution of serpentine endemism inMinuartia laricifolia, which has two ecologically distinct subspecies with disjunct distributions: subsp.laricifoliaon siliceous rocks in the western Alps and eastern Pyrenees and subsp.ophioliticaon serpentine in the northern Apennines. We analysed AFLPs and chloroplast sequences from 30 populations to examine their relationships and how their current distributions and ecologies were influenced by Quaternary climatic changes.Minuartia laricifoliawas divided into four groups with a BAPS cluster analysis of the AFLP data, one group consisted only of subsp.ophiolitica, while three groups were found within subsp.laricifolia: Maritime Alps, north‐western Alps and central Alps. The same groups were recovered in a neighbour‐joining tree, although subsp.ophioliticawas nested within the Maritime Alps group of subsp.laricifolia. Subspeciesophioliticacontained three different chloroplast haplotypes, which were also found in the Maritime Alps group of subsp.laricifolia. Given its high genetic diversity, subsp.ophioliticaappears to have arisen from subsp.laricifoliaby vicariance instead of by long‐distance dispersal. Genetic and geographic evidence point to the Maritime Alps populations of subsp.laricifoliaas the closest relatives of subsp.ophiolitica. We hypothesize thatM. laricifoliawas also able to grow on nonserpentine rocks in the northern Apennines during glacial periods when the vegetation was more open, but that only the serpentine‐adapted populations were able to persist until the present due to their competitive exclusion from more favourable habitats.
登录
查看更多内容
影响因子：
0.9
作者：
H. Meusel;E. Jäger;E. Weinert;S. Rauschert
通讯作者：
S. Rauschert
通过裂变径迹分析洞察利古里亚亚平宁山脉（意大利）的热演化
影响因子：
2.7
作者：
M. Balestrieri;E. Abbate;G. Bigazzi
通讯作者：
G. Bigazzi
蛇纹石和非蛇纹石 Achillea millefolium 种质在蛇纹石基质耐受性以及对有机和无机修饰的响应方面存在差异
影响因子：
4.9
作者：
R. O’Dell;V. Claassen
通讯作者：
V. Claassen
影响因子：
2.2
作者：
C. Bartolini
通讯作者：
C. Bartolini
加州蛇纹草原上的植物分布：岩石丘陵是本地物种的空间避难所吗？
影响因子：
1.7
作者：
W. Gram;E. Borer;K. L. Cottingham;E. Seabloom;V. Boucher;L. Goldwasser;F. Micheli;B. Kendall;R. S. Burton
通讯作者：
R. S. Burton