Data from: Comparing and co-analysing microsatellite and morphological data for species delimitation in the New Zealand native Myosotis pygmaea species group (Boraginaceae)
Prebble, Jessica M.
Meudt, Heidi M.
Tate, Jennifer A.
Symonds, V. Vaughan
Published May 10, 2020 on Dryad.
Cite this dataset
Prebble, Jessica M.; Meudt, Heidi M.; Tate, Jennifer A.; Symonds, V. Vaughan (2020). Data from: Comparing and co-analysing microsatellite and morphological data for species delimitation in the New Zealand native Myosotis pygmaea species group (Boraginaceae) [Dataset]. Dryad. https://doi.org/10.5061/dryad.k8ft12q
Delimiting species boundaries in recent plant radiations can be challenging. The New Zealand native Myosotis pygmaea (Boraginaceae) species group is a case in point. This species complex is of interest as it includes threatened species as well as possibly threatened unnamed putative taxa. Integrative taxonomic approaches using multiple lines of evidence are frequently used to overcome the difficulties of identifying lineages resulting from recent radiations. Here we analyse genotypic data from nearly 500 Myosotis individuals using microsatellite markers, and compare and co-analyse this dataset with previously published morphological data. Within the M. pygmaea group, several genetic clusters can be identified, none of which align exactly with the current taxonomy and morphological variation previously identified. When co-analysing the molecular and morphological data, M. brevis can be distinguished from the remainder of the M. pygmaea species group, but no other species or previously recognised morphological groups are supported. Other groupings within the molecular dataset appear to reflect geographic structure. Within the M. pygmaea species group, the resulting pattern of low within, and high between, population genetic variation is consistent with self-fertilization and low levels of seed dispersal.
Myosotis pygmaea group SSR data
This data file contains scored SSR data of 12 markers for 497 individuals in the Myosotis pygmaea species group. It is formatted by GenAlEx. Missing data is represented by a 0. The population codes in this file are based on collector numbers, whereas in the related publication the populations are identified by two letter codes. The associated file titled "voucher information for specimens" translates between the two codes.
Voucher information for specimens
This file contains voucher information for the individuals included in the SSR datafile, as well as translating between the population codes used in the data file and those used in the publication