Prehistory, Identity, and Archaeological Representation in Nordic Museums

In this article, I examine the variable representation of Saami (Lapp) prehistory in several Nordic museums. The analysis is situated at the intersection of (1) the examination of the ideology of archaeological practice, (2) the discourse about creation of indigenous identity, and (3) the visual culture of museum exhibitions. I describe and analyze displays about archaeology and prehistory from seven museums in Sweden, Finland, and Norway. The presentation of Saami prehistory differs significantly between majority community museums and those run by Saami communities. These presentations reflect ideologies implicated in building indigenous, nationalist, and pannational identities as well as in establishing legitimacy of Saami claims to land and heritage. Representations of the past are inevitably political because they are about linking people, place, and legitimacy. Ambiguities in these uses of prehistory are discussed, as is the globalizing role of the European Union.     

Gene regulatory divergence among species estimated by altered developmental patterns in interspecific hybrids

Disturbances in the schedules of gene expression in developing interspecific fish hybrids have been used to draw inferences about the extent of gene regulatory divergence between species and about the degree to which this gene regulatory divergence is correlated with structural gene divergence, as estimated by genetic distance. Sperm from each of 10 different species representing six genera within the family Centrarchidae was used to fertilize eggs of the Florida largemouth bass (Micropterus salmoides floridanus). The genetic distances (D; Nei 1978) between the parental species used to form the hybrids ranged from 0.133 to 0.974. The developmental success and temporal patterns of gene expression of each of the hybrids were compared with those of the Florida largemouth bass. As the genetic distance between the paternal species and the Florida largemouth bass increased, there was a general decline in developmental success in the hybrid embryos as demonstrated by the observed reductions in the percentage of hatching and by progressively earlier and more extensive morphological abnormalities. Concomitantly, progressively more marked alterations in developmental schedules of expression of 15 enzyme loci occurred in the hybrids as the genetic distance between parental species increased. However, observed deviations from this trend for a few species may represent an uncoupling of the rates and modes of evolution of structural genes from those for genes regulating developmental processes.