I. Monographs

Oja T. 2006. Phylogenetic relationships and systematics in genus Bromus (Poaceae). in:Plant Genome, vol.1, part D, chapter 9.
Oja T. 1998. PhD thesis "Isoenzyme diversity and phylogenetic affinities
among the Eurasian annual bromes (Bromus L., Poaceae)".

II. Scientific articles in international magazines

ISI CC referred articles:

1. Oja, T. & Paal, J. 2007. Multivariate analysis of morphological variation among closely related species Bromus japonicus, B. squarrosus and B. arvensis (Poaceae) in comparison with isozyme evidences. Nord. J. Bot. 24: 691-702.

2. Kull, T. & Oja T. 2007. Low allozyme variation in Carex loliaceae (Cyperaceae), a declining woodland sedge. Ann. Bot. Fennici 44: 267-275.

3. Oja T. 2006. Preliminary isozyme evidence on the hybrid origin and diploid progenitors of Bromus pectinatus (Poaceae). Proceedings of the Third International Conference on the Comparative Biology of the Monocotyledons and the Fourth International Symposium on Grass Systematics and Evolution. pp. 449–452.

4. Oja, T. Isozyme evidence on the genetic diversity, mating system and evolution of Bromus intermedius (Poaceae) PLANT SYST EVOL, 254 (3-4): 199 - 208 AUG 2005

5. Oja, T; Jaaska, V; Vislap, V Breeding system, evolution and taxonomy of Bromus arvensis, B.japonicus and B.squarrosus (Poaceae) PLANT SYST EVOL, 242 (1-4): 101-117 NOV 2003

6. Oja, T Bromus fasciculatus Presl - a third diploid progenitor of Bromus section Genea allopolyploids (Poaceae) HEREDITAS, 137 (2): 113-118 2002

7. Oja, T; Laarmann, H Comparative study of the ploidy series Bromus sterilis,
B. diandrus and B-rigidus (Poaceae) based on chromosome numbers, morphology and isozymes
PLANT BIOLOGY, 4 (4): 484-491 JUL 2002

8. Oja, T. Genetic divergence and interspecific differentiation in the Bromus madritensis complex (Poaceae) based on isozyme data BIOCHEM SYST ECOL, 30 (5): 433-449 MAY 2002

9. Oja, T. Allozyme diversity and interspecific differentiation of the two diploid
bromegrass species, Bromus tectorum L and B.sterilis L (Poaceae)
PLANT BIOLOGY, 1 (6): 679-686 NOV 1999

10. Oja, T; Jaaska, V Allozyme diversity and phylogenetic relationships among diploid annual bromes (Bromus, Poaceae) ANN BOT FENN, 35 (2): 123-130 1998

11. Oja, T. Isoenzyme diversity and phylogenetic affinities in the section Bromus of the grass genus Bromus (Poaceae)
BIOCHEM SYST ECOL, 26 (4): 403-413 JUN 1998

12. Oja, T, Jaaska, V. Isoenzyme data on the genetic divergence and allopolyploidy in the section Genea of the grass genus Bromus (Poaceae).
HEREDITAS, 125(2-3): 249-255 1996.

III. Other scientific articles

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