ISSN:
1615-6110
Keywords:
Musci
;
Hypopterygiaceae
;
Lopidium concinnum
;
Palaeoaustral taxon
;
genetic similarity
;
chloroplast DNA
;
trnTUGU —trnLUAA intergenic spacer
;
trnLUAA intron
;
trnLUAA —trnFGAA intergenic spacer
;
non-coding region
;
stenoevolutionary taxon
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Evolutionary relationship between disjunct populations of the palaeoaustral moss taxonLopidium concinnum (Hypopterygiaceae) from New Zealand and southern South America were studied using non-coding chloroplast DNA sequences. No or only slight changes could be observed within the sequences oftrnTUGU —trnLUAA 5′exon intergenic spacer,trnLUAA intron andtrnLUAA 3′exon —trnFGAA intergenic spacer. This indicates nearly no genetic divergence between extant New Zealand and Chilean populations, i.e. no significant differing pathways of evolution within the 80–60 million years of disrupted areas with interrupted gene flow. Molecular data support the idea of an old Gondwanan relict species of stenoevolutionary character. Ecological data on short-range dispersal strengthen this assessment.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01087035
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