Insights into Aotearoa New Zealand's biogeographic history provided by the study of natural hybrid zones
JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND(2024)
摘要
Hybridisation is commonly observed in geographical zones of contact between distinct lineages. These contact zones have long been of interest for biogeographers because they provide insight into the evolutionary and ecological processes that influence the distribution of species as well as the process of speciation. Here we review research on hybrid zones and zones of past introgression, both terrestrial and marine, in Aotearoa New Zealand. Many of New Zealand's hybrid zones occur between lineages or species that diverged prior to the Last Glacial Maximum (LGM), with numerous divergences dating to the early Pleistocene or Pliocene. Few secondary contact zones have been detected in terrestrial plants and in marine taxa. This may reflect a lack of the intensive sampling required to detect hybrid zones in these groups but for plants may also indicate widespread Pleistocene survival across the country. Lastly, we suggest avenues for research into New Zealand hybrid zones that are likely to be fruitful.
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关键词
Biogeography,contact zone,hybridisation,hybrid zone,introgression,New Zealand,phylogeography,suture zone
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