Journal article
Reproductive biology of three commercially valuable Santalum species: Development of flowers and inflorescences, breeding systems, and interspecific crossability
Euphytica, Vol.184(3), pp.323-333
2012
Abstract
Santalum (sandalwood) spp. are hemi-parasitic trees, the heartwood of which produces valuable aromatic oil. There appears to be a significant commercial opportunity for establishment of a planted sandalwood resource. However, lack of basic biological knowledge is one constraint on such development. The study reported here addresses one such constraint. Controlled pollination using 13 genotypes of Santalum lanceolatum was undertaken to elucidate (i) self-incompatibility (ii) intraspecific cross-compatibility in the species, and (iii) interspecific cross-compatibility with S. album and S. austrocaledonicum. S. lanceolatum may be considered to have a facultative allogamous (incomplete outbreeding) breeding system. This study found variation between genotypes in the level of putative self-incompatibility: some (20%) were found to set seed following self-pollination, while the remaining 80% had no seed development with such pollinations. However, a significantly greater proportion of genotypes developed seed following intraspecific cross-pollination (62%) compared with self-pollination (20%). While total geographic isolation and significant morphological divergence exists between S. lanceolatum with each of S. album and S. austrocaledonicum this study found no indication of reproductive barrier(s) between them, indicating potential for use of interspecific hybridization in genetic improvement, but also suggesting the potential of undesirable gene flow between native and introduced species. © 2011 Springer Science+Business Media B.V.
Details
- Title
- Reproductive biology of three commercially valuable Santalum species: Development of flowers and inflorescences, breeding systems, and interspecific crossability
- Authors
- H T Tamla (Author) - James Cook UniversityJ P Cornelius (Author) - James Cook UniversityTony Page (Author) - James Cook University
- Publication details
- Euphytica, Vol.184(3), pp.323-333
- Publisher
- Springer Netherlands
- DOI
- 10.1007/s10681-011-0530-y
- ISSN
- 0014-2336
- Organisation Unit
- Forest Research Institute; University of the Sunshine Coast, Queensland; Tropical Forests & People Research Centre; Australian Centre for Pacific Islands Research; Forest Industries Research Centre
- Language
- English
- Record Identifier
- 99450183002621
- Output Type
- Journal article
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