Table 2

Comparison of species boundaries for New Zealand and Australian Ourisia using different methods

Morphology [33]

Tree-building analysis

Structure analysis

PCO-MC analysis

Species delimitation (this paper)


Ourisia caespitosa

✓ (3 lineages)

✓ (2 clusters)

no change, but further investigation of lineages within species is required

O. confertifolia

(not distinguished)4

no change

O. crosbyi

(not distinguished)1

(not distinguished)5

no change

O. glandulosa

(not distinguished)3

(not distinguished)4

no change

O. macrocarpa

NO

NO

NO

recognize O. macrocarpa s.s. (see below)

O. macrocarpa subsp. calycina

(not distinguished)5

recognize at species level, O. calycina

O. macrocarpa subsp. macrocarpa

recognize at species level, O. macrocarpa

O. macrophylla

(not distinguished)1

(not distinguished)5

no change

O. macrophylla subsp.lactea

(not distinguished)1

(not distinguished)5

no change

O. macrophylla subsp. macrophylla

(not distinguished)1

(not distinguished)5

no change

O. modesta

no change

O. remotifolia

no change

O. sessilifolia

no change

O. sessilifolia subsp. sessilifolia

(poorly resolved)2

(not distinguished)2

(not distinguished)2

no change, but further investigation of lineages within species is required

O. sessilifolia subsp. splendida

(poorly resolved)2

(not distinguished)2

(not distinguished)2

no change, but further investigation of lineages within species is required

O. simpsonii

no change

O. spathulata

(not distinguished)3

(not distinguished)4

no change

O. vulcanica

(not distinguished)1

(not distinguished)5

no change

O. integrifolia (Tasmania)

no change


Comparison of species boundaries using morphology [33], tree-building analysis of combined AFLP data (Bayesian inference, Fig. 3), Structure analysis of combined AFLP data (K = 12, Fig. 5), and PCO-MC analysis of the combined AFLP data (Fig. 6), and the recommendation for species delimitation within Ourisia based on all analyses. Superscript numbers indicate the species and subspecies that are found in the same cluster in the tree-building, Structure, or PCO-MC analysis (and are therefore poorly resolved or not distinguishable): 1Ourisia crosbyi, O. macrophylla subsp. lactea, O. macrophylla subsp. macrophylla, and O. vulcanica; 2O. sessilifolia subsp. sessilifolia and subsp. splendida; 3O. glandulosa and O. spathulata; 4O. confertifolia, O. glandulosa and O. spathulata; 5O. crosbyi, O. macrocarpa subsp. calycina, O. macrophylla subsp. lactea, O. macrophylla subsp. macrophylla, and O. vulcanica.

Meudt et al. BMC Evolutionary Biology 2009 9:111   doi:10.1186/1471-2148-9-111

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