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86543 - Isolated intermediates - products of long distance gene dispersal, phantom hybridity or convergent evolution.pdf (306.25 kB)

Isolated intermediates - products of long distance gene dispersal, phantom hybridity or convergent evolution? The case of the half-barked Eucalyptus amygdalina

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posted on 2023-05-17, 19:39 authored by James KirkpatrickJames Kirkpatrick, Bradley PottsBradley Potts
Apparent intermediates between Eucalyptus amygdalina and E. pulchella occur well outside the recognized range of the latter species. Progenies of these isolated intermediates were grown in uniform conditions with progenies of trees of E. pulchella, E. amygdaline and apparent hybrids between these two species that are found where they occur parapatrically. The isolated intermediate population proved identical with E. amygdalina in seedling characteristics, while the parapatric intermediates were more variable than the other populations, this variability probably being partly the result of hybridization between E. amygdalina and either E. tenuiramis or E. risdonii. The allopatric intermediate population is more likely to have resulted from convergence of E. amygdalina in the direction of E. pulchella than from phantom hybridity or long distance gene migration.

History

Publication title

Papers and Proceedings of the Royal Society of Tasmania

Volume

121

Pagination

15-22

ISSN

0080-4703

Department/School

School of Geography, Planning and Spatial Sciences

Publisher

Royal Society of Tasmania

Place of publication

Hobart

Rights statement

Copyright 1987 Royal Society of Tasmania

Repository Status

  • Open

Socio-economic Objectives

Terrestrial biodiversity

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