We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Heritabilities of lateral and vertical herkogamy in Lysimachia arvensis.
- Authors
Jiménez‐López, Francisco Javier; Arista, Montserrat; Talavera, María; Pannell, John R.; Ortiz, Pedro L.
- Abstract
Herkogamy, spatial separation between stigma and anthers within a flower, is important in regulating plant‐mating systems. We studied phenotypic variation and heritability of herkogamy traits in Lysimachia arvensis (=Anagallis arvensis) that show both lateral and vertical herkogamy in the same flower, a rare strategy in flowering plants. Both lateral and vertical herkogamy showed continuous variation in 15 natural populations. Lateral herkogamy, measured as the angle between style and stamens, ranged from 5.6 to 66.5°; vertical herkogamy ranged from reverse to approach herkogamy. Herkogamy traits were constant within plants but variable among plants and populations. Flowers with marked lateral herkogamy showed mainly reverse herkogamy, whereas flowers with low lateral herkogamy showed mainly approach herkogamy. Both herkogamy traits showed a high degree of narrow sense heritability (h2 = 0.843 for lateral and h2 = 0.635 for vertical herkogamy). We discuss the possibility that variation in both herkogamy traits among populations of L. arvensis is a consequence of differential selective pressures under different pollination environments. Lysimachia arvensis shows two consecutive types of herkogamy in the same flower, a very rare fact in flowering plants. Both herkogamy types showed a continuous variation, were very variable among plants and populations and showed a high degree of narrow sense heritability. Variation in both herkogamy traits among populations could be a consequence of differential selective pressures under different pollination environments.
- Subjects
POLLINATION; HERITABILITY; STAMEN; LYSIMACHIA; POLLEN
- Publication
Plant Species Biology, 2019, Vol 34, Issue 1, p31
- ISSN
0913-557X
- Publication type
Article
- DOI
10.1111/1442-1984.12229