TY - JOUR
AU1 - SELIN, EVA
AB - AbstractThe pattern of morphological variation was investigated in isolated northern Scandinavian populations of Papaver radicatum, a perennial species with a disjunct distribution in the Scandinavian mountain range, Iceland and the Faroes. Canonical variates analysis and Ward's clustering were applied to data sets from wild-collected seed and capsule material, and from cultivated leaf material from seven populations of P. radicatum in northern Scandinavia, usually assigned to the sspp. subglobosum, hyperboreum and macrostigma. Automatized image acquisition and shape description techniques were used to describe variation in seed shape. The present study supports the multivariate analyses obtained with the southern Norwegian P. radicatum populations in that some of the assumed subspecies show inter-population variation and are not well delimited. In the analyses of capsule and seed morphology as well as leaf morphology, the populations of the sspp. hyperboreum and macrostigma are grouped together. Previous studies of chromosomal and morphological variation in southern Norwegian P. radicatum suggested that the degree of interracial differentiation was similar between all races regardless of their degree of geographic separation. The pattern of differentiation has been taken as a support of in situ refugial survival during the Weichselian glaciation. As in similar multivariate analyses of southem Norwegian P. radicatum, the multivariate analyses of northern Scandinavian P. radicatum do not confirm such a scenario. The results rather point to the possibility that populations from the sspp. hyperboreum and macrostigma complex were separated during the post-glacial hypsithemal. The morphologically distinct ssp. subglobosum could have been isolated at an earlier stage.
TI - Morphometric differentiation between populations of Papaver radicatum (Papaveraceae) in northern Scandinavia
JF - Botanical Journal of the Linnean Society
DO - 10.1111/j.1095-8339.2000.tb01546.x
DA - 2000-07-01
UR - https://www.deepdyve.com/lp/oxford-university-press/morphometric-differentiation-between-populations-of-papaver-radicatum-dTucgMMBHA
SP - 263
EP - 284
VL - 133
IS - 3
DP - DeepDyve
ER -