The genetic structure of Eucalyptus globulus forest was examined using progeny vigor as an indirect measure of parental relatedness. Seven trees were crossed with pollen from trees: 0 m (selfing); 21 m (nearest flowering neighbors), 250 m, 500 m, 1 km, 10 km, and 100 km away from the female. Only selfing depressed seed set. Growth of the 21 m progenies was intermediate to selfing and the longer distance pollinations, suggesting tight family clusters occur due to limited seed dispersal. Under this structure biparental inbreeding may be common, however, the cumulative impact of inbreeding seems negligible as relatedness did not appear to decline with distance between mates beyond 50 m.

Item Type:	Refereed Article
Research Division:	Biological Sciences
Research Group:	Genetics
Research Field:	Population, Ecological and Evolutionary Genetics
Objective Division:	Plant Production and Plant Primary Products
Objective Group:	Forestry
Objective Field:	Native Forests
Author:	Hardner, CM (Mr Craig Martin Hardner)
Author:	Potts, BM (Professor Brad Potts)
Author:	Gore, PL (Mr Peter Gore)
ID Code:	15010
Year Published:	1998
Web of Science® Times Cited:	43
Deposited By:	CRC for Forestry
Deposited On:	1998-08-01
Last Modified:	2011-08-09
Downloads:	0