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The importance of phylogeny and ecology in microgeographical variation in the morphology of four Canarian species of Aeonium (Crassulaceae)

Jörgensen, Tove LU (2002) In Biological Journal of the Linnean Society 76(4). p.521-533
Abstract
The relative importance of natural selection in the diversification of organisms. can be assessed indirectly using matrix correspondence. The present study determines the environmental and genetic correlates of microgeographical variation in the growth form, leaf form and flower morphology in populations of four Aeonium species from section Leuconium using partial regression methods. The phylogeny of the four species and the other 12 species in the section was deduced from amplified fragment length polymorphism (AFLP). Pubescence of floral organs and flower size correlate with the phylogeny while traits related to growth form, leaf form, flower construction and inflorescence size correlate with ecological factors. The variation in the... (More)
The relative importance of natural selection in the diversification of organisms. can be assessed indirectly using matrix correspondence. The present study determines the environmental and genetic correlates of microgeographical variation in the growth form, leaf form and flower morphology in populations of four Aeonium species from section Leuconium using partial regression methods. The phylogeny of the four species and the other 12 species in the section was deduced from amplified fragment length polymorphism (AFLP). Pubescence of floral organs and flower size correlate with the phylogeny while traits related to growth form, leaf form, flower construction and inflorescence size correlate with ecological factors. The variation in the latter four traits may therefore reflect selection by current ecological conditions while variation in pubescence and flower size may reflect historical events like neutral mutations, founder events and drift. Additionally, the morphological analyses revealed a large amount of variation in all traits within populations. This suggests a possible influence of microhabitat on the variation in morphology of Aeonium in the Canary Islands. (C) 2002 The Linnean Society of London, Biological Journal of the Linnean Society, 76, 521-533. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Biological Journal of the Linnean Society
volume
76
issue
4
pages
521 - 533
publisher
Linnean Society of London
external identifiers
  • wos:000177484900005
  • scopus:0036695540
ISSN
0024-4066
DOI
10.1046/j.1095-8312.2002.00088.x
language
English
LU publication?
yes
id
bbb8b746-8e1f-49e7-ad96-fa13d82749ff (old id 147182)
date added to LUP
2007-07-02 11:27:13
date last changed
2017-01-01 04:55:42
@article{bbb8b746-8e1f-49e7-ad96-fa13d82749ff,
  abstract     = {The relative importance of natural selection in the diversification of organisms. can be assessed indirectly using matrix correspondence. The present study determines the environmental and genetic correlates of microgeographical variation in the growth form, leaf form and flower morphology in populations of four Aeonium species from section Leuconium using partial regression methods. The phylogeny of the four species and the other 12 species in the section was deduced from amplified fragment length polymorphism (AFLP). Pubescence of floral organs and flower size correlate with the phylogeny while traits related to growth form, leaf form, flower construction and inflorescence size correlate with ecological factors. The variation in the latter four traits may therefore reflect selection by current ecological conditions while variation in pubescence and flower size may reflect historical events like neutral mutations, founder events and drift. Additionally, the morphological analyses revealed a large amount of variation in all traits within populations. This suggests a possible influence of microhabitat on the variation in morphology of Aeonium in the Canary Islands. (C) 2002 The Linnean Society of London, Biological Journal of the Linnean Society, 76, 521-533.},
  author       = {Jörgensen, Tove},
  issn         = {0024-4066},
  language     = {eng},
  number       = {4},
  pages        = {521--533},
  publisher    = {Linnean Society of London},
  series       = {Biological Journal of the Linnean Society},
  title        = {The importance of phylogeny and ecology in microgeographical variation in the morphology of four Canarian species of Aeonium (Crassulaceae)},
  url          = {http://dx.doi.org/10.1046/j.1095-8312.2002.00088.x},
  volume       = {76},
  year         = {2002},
}