New Zealand Journal of Botany abstracts
Self-incompatibility in the threatened shrub Olearia adenocarpa
(Asteraceae)
P. B. Heenan
R. D. Smissen
M. I. Dawson
Allan Herbarium
Landcare Research
P.O. Box 69
Lincoln 8152, New Zealand
Abstract Controlled self- and cross-pollinations
and seed set data for different genotypes of Olearia adenocarpa
were used to test for self-incompatibility. The self-pollination
experiments revealed two genotypes that are self-incompatible and four
genotypes that are, to varying degrees, self-compatible. One
self-compatible genotype had seed set (64.0%) comparable to the most
successful cross-pollination experiments (61.7–80.9%).
Cross-pollination experiments between different genotypes produced
variable amounts of seed. Some crosses failed to produce seed, which
indicates that these genotypes share S-alleles. Other cross-pollination
experiments produced up to 80.9% seeds. Amplified Fragment Length
Polymorphism genetic data obtained from 10 plants in one population
showed high levels of genetic diversity and heterozygosity, and this is
consistent with an outcrossing breeding system.
Keywords Asteraceae; Olearia; Olearia
adenocarpa; self-incompatibility; self-compatibility;
hand-pollinations; conservation; AFLP; New Zealand flora
B05022; Received 19 May 2005; accepted 1 August 2005; Online
publication date 4 October 2005
New Zealand Journal of Botany, 2005, Vol. 43: 831–841
0028–825X/05/4304–0831 © The Royal Society of New Zealand 2005
PDF file of entire paper: Print-quality
(2356K) | screen-quality (491K)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
