<abstract xmlns="http://www.w3.org/1999/xhtml"> Pinus canariensis is endemic to the western Canary Islands (NW coast of Africa), where it forms forest spanning an altitude from 500 to 2500 m. There are dramatic changes in environmental conditions (temperature, moisture and solar radiation) over short distances due to this elevation gradient in the Canary Island pine forest. Those differences in environmental conditions may lead to asynchronous flowering times among elevations. In this study we used nuclear and chloroplast microsatellites to characterize the genetic structure of two altitudinal transects on the southern slopes of Tenerife Island to test for genetic isolation among altitudes. Although significant differentiation among sites was detected, this differentiation was very low (FST = 0.013 with chloroplast markers, FST= 0.019 with nuclear markers) and appeared to be unrelated to altitude. The contrasting results between nuclear and chloroplast markers are also discussed in terms of statistical accuracy of markers and genome inheritance.</abstract>

Pinus canariensis is endemic to the western Canary Islands (NW coast of Africa), where it forms forest spanning an altitude from 500 to 2500 m. There are dramatic changes in environmental conditions (temperature, moisture and solar radiation) over short distances due to this elevation gradient in the Canary Island pine forest. Those differences in environmental conditions may lead to asynchronous flowering times among elevations. In this study we used nuclear and chloroplast microsatellites to characterize the genetic structure of two altitudinal transects on the southern slopes of Tenerife Island to test for genetic isolation among altitudes. Although significant differentiation among sites was detected, this differentiation was very low (FST = 0.013 with chloroplast markers, FST= 0.019 with nuclear markers) and appeared to be unrelated to altitude. The contrasting results between nuclear and chloroplast markers are also discussed in terms of statistical accuracy of markers and genome inheritance.

The Effect of Altitude on the Pattern of Gene Flow in the Endemic Canary Island Pine, Pinus canariensis

United Kingdom of Great Britain and Northern Ireland

Silvae Genetica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Pinus canariensis is endemic to the western Canary Islands (NW coast of Africa), where it forms forest spanning an altitude from 500 to 2500 m. There are...

The Effect of Altitude on the Pattern of Gene Flow in the Endemic Canary Island Pine, Pinus canariensis

Publié en ligne: 14 oct. 2017

Pages: 357 - 363

Reçu: 08 nov. 2007

DOI: https://doi.org/10.1515/sg-2008-0052

Mots clés
chloroplast microsatellites, nuclear microsatellites, population differentiation, isolation by altitude

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The Effect of Altitude on the Pattern of Gene Flow in the Endemic Canary Island Pine, Pinus canariensis

Publié en ligne: 14 oct. 2017

Pages: 357 - 363

Reçu: 08 nov. 2007

DOI: https://doi.org/10.1515/sg-2008-0052

Mots cléschloroplast microsatellites, nuclear microsatellites, population differentiation, isolation by altitude

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
chloroplast microsatellites, nuclear microsatellites, population differentiation, isolation by altitude