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The pattern of variation in leaflet shape and reproductive characters in Lathyrus vernus (L.) Bernh. (Fabaceae)

Widén, Björn LU and Schiemann, Katarina LU (2003) In Plant Systematics and Evolution 240(1-4). p.41-54
Abstract
The pattern of variation in characters closely connected with reproductive fitness and in a presumably weakly selected character, leaflet shape, was studied in the forest-herb Lathyrus vernus. Plants from twenty populations, representing three geographically distinct regions (C. Europe, S. Sweden and C. Sweden), were transplanted to a common garden. Leaflet shape, described using elliptic Fourier coefficients and moment invariants, showed significant variation between regions and between population within regions, and a tendency for differences in leaflet shape to increase with the geographic distance separating the populations. Pairwise comparisons of populations also revealed a positive association between the difference in leaflet shape... (More)
The pattern of variation in characters closely connected with reproductive fitness and in a presumably weakly selected character, leaflet shape, was studied in the forest-herb Lathyrus vernus. Plants from twenty populations, representing three geographically distinct regions (C. Europe, S. Sweden and C. Sweden), were transplanted to a common garden. Leaflet shape, described using elliptic Fourier coefficients and moment invariants, showed significant variation between regions and between population within regions, and a tendency for differences in leaflet shape to increase with the geographic distance separating the populations. Pairwise comparisons of populations also revealed a positive association between the difference in leaflet shape (when quantified using moment invariants) and the genetic distance based on allozyme data from an earlier study. There were significant between-population and between-region differences for most of the reproductive characters, whereas the association between the between-population distance in reproductive characters and geographic or genetic distance failed to reach significance. Leaflet shape and reproductive characters generally showed higher levels of differentiation than the allozymes. L. vernus did not show any significant differences in fitness-related characters between small and large populations measured in cultivation, although individuals from small populations flowered earlier and had a higher mortality during four years in cultivation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Plant Systematics and Evolution
volume
240
issue
1-4
pages
41 - 54
publisher
Springer
external identifiers
  • wos:000186411200003
  • scopus:0242659852
ISSN
1615-6110
DOI
10.1007/s00606-003-0020-3
language
English
LU publication?
yes
id
37d7d926-1afd-4c7a-af92-6c29a4331d53 (old id 137588)
date added to LUP
2007-07-03 09:57:04
date last changed
2017-01-01 05:07:38
@article{37d7d926-1afd-4c7a-af92-6c29a4331d53,
  abstract     = {The pattern of variation in characters closely connected with reproductive fitness and in a presumably weakly selected character, leaflet shape, was studied in the forest-herb Lathyrus vernus. Plants from twenty populations, representing three geographically distinct regions (C. Europe, S. Sweden and C. Sweden), were transplanted to a common garden. Leaflet shape, described using elliptic Fourier coefficients and moment invariants, showed significant variation between regions and between population within regions, and a tendency for differences in leaflet shape to increase with the geographic distance separating the populations. Pairwise comparisons of populations also revealed a positive association between the difference in leaflet shape (when quantified using moment invariants) and the genetic distance based on allozyme data from an earlier study. There were significant between-population and between-region differences for most of the reproductive characters, whereas the association between the between-population distance in reproductive characters and geographic or genetic distance failed to reach significance. Leaflet shape and reproductive characters generally showed higher levels of differentiation than the allozymes. L. vernus did not show any significant differences in fitness-related characters between small and large populations measured in cultivation, although individuals from small populations flowered earlier and had a higher mortality during four years in cultivation.},
  author       = {Widén, Björn and Schiemann, Katarina},
  issn         = {1615-6110},
  language     = {eng},
  number       = {1-4},
  pages        = {41--54},
  publisher    = {Springer},
  series       = {Plant Systematics and Evolution},
  title        = {The pattern of variation in leaflet shape and reproductive characters in Lathyrus vernus (L.) Bernh. (Fabaceae)},
  url          = {http://dx.doi.org/10.1007/s00606-003-0020-3},
  volume       = {240},
  year         = {2003},
}