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Population differentiation and natural selection for water-use efficiency in Impatiens capensis (Balsaminaceae)

Publication ,  Journal Article
Heschel, MS; Donohue, K; Hausmann, N; Schmitt, J
Published in: International Journal of Plant Sciences
November 1, 2002

In xeric environments, water-use efficiency (WUE) is likely to be a target of natural selection. Higher WUE is expected to confer a fitness advantage in drought conditions, but this prediction has rarely been tested. To examine the relationships between WUE and fitness, two common garden experiments were conducted. Inbred lines of Impatiens capensis derived from wet and relatively dry sites were planted into dry field conditions in an open and a woodland site. The lines from the dry population increased their instantaneous WUE in response to the dry conditions of the field to a greater degree than lines from the wet population. High instantaneous WUE also conferred a fitness advantage in the stressful conditions of the field. Thus, WUE may be an important trait for I. capensis populations in adapting to drier conditions.

Duke Scholars

Published In

International Journal of Plant Sciences

DOI

ISSN

1058-5893

Publication Date

November 1, 2002

Volume

163

Issue

6

Start / End Page

907 / 912

Related Subject Headings

  • Evolutionary Biology
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
  • 0603 Evolutionary Biology
 

Citation

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ICMJE
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Heschel, M. S., Donohue, K., Hausmann, N., & Schmitt, J. (2002). Population differentiation and natural selection for water-use efficiency in Impatiens capensis (Balsaminaceae). International Journal of Plant Sciences, 163(6), 907–912. https://doi.org/10.1086/342519
Heschel, M. S., K. Donohue, N. Hausmann, and J. Schmitt. “Population differentiation and natural selection for water-use efficiency in Impatiens capensis (Balsaminaceae).” International Journal of Plant Sciences 163, no. 6 (November 1, 2002): 907–12. https://doi.org/10.1086/342519.
Heschel MS, Donohue K, Hausmann N, Schmitt J. Population differentiation and natural selection for water-use efficiency in Impatiens capensis (Balsaminaceae). International Journal of Plant Sciences. 2002 Nov 1;163(6):907–12.
Heschel, M. S., et al. “Population differentiation and natural selection for water-use efficiency in Impatiens capensis (Balsaminaceae).” International Journal of Plant Sciences, vol. 163, no. 6, Nov. 2002, pp. 907–12. Scopus, doi:10.1086/342519.
Heschel MS, Donohue K, Hausmann N, Schmitt J. Population differentiation and natural selection for water-use efficiency in Impatiens capensis (Balsaminaceae). International Journal of Plant Sciences. 2002 Nov 1;163(6):907–912.
Journal cover image

Published In

International Journal of Plant Sciences

DOI

ISSN

1058-5893

Publication Date

November 1, 2002

Volume

163

Issue

6

Start / End Page

907 / 912

Related Subject Headings

  • Evolutionary Biology
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
  • 0603 Evolutionary Biology