Topic
Lewinia
About: Lewinia is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 14 citations.
Papers
TL;DR: The Lewinia rails (L. mirifi ca, L. pectoralis and L. muelleri) as discussed by the authors have a very wide spatial and ecological range, and their mitochondrial molecular analysis (cyt b and CR) reveals genetic distances of less than 1%.
Abstract: Despite the capacity for dispersal, range size varies considerably among birds species. Many species have restricted geographic spread, whilst others routinely travel long distances to reach preferred habitat. �怀 ese alternatives are well expressed amongst the rails (Rallidae) and a varying tendency for movement results in overlapping distribution patterns. Here, we examine the situation of a particular lineage, the Lewinia rails ( L. mirifi ca, L. pectoralis and L. muelleri ) that inhabit a very wide spatial and ecological range. Lewinia occurs from the Philippines, north of the equator in Oceania, to Australia and the subantarctic Auckland Islands far to the south. Allopatric distribution and diff erences in plumage colour result in their treatment as distinct species but our mitochondrial molecular analysis (cyt b and CR) reveals genetic distances of less than ! 1%. �怀 e genetic and phylogeographical structure in the Lewinia lineage includes shared nuclear sequence alleles and this is consistent with a callibrated multigene phylogeny suggesting trans-hemispheric dispersal since the middle Pleistocene. Despite this recent history, available morphometric data indicates that the subantarctic population has relatively small wings for its mass, and this implies adaptation away from fl ight. Lewinia provides a nice example of the way dispersal and adaptation intersect over short time frames to generate diversity.
13 citations
TL;DR: Based on the concatenated nucleotide sequences of the complete mitochondrial DNA genes of 16 Rallidae species, reconstruction of phylogenetic trees and analysis of the molecular clock of Porzana fusca and P. pusilla indicated that these species from a sister group, which in turn are sister group to Rallina eurizonoides.
Abstract: The complete mitochondrial genome sequences of Porzana fusca and Porzana pusilla were determined. The two avian species share a high degree of homology in terms of mitochondrial genome organization and gene arrangement. Their corresponding mitochondrial genomes are 16,935 and 16,978 bp and consist of 37 genes and a control region. Their PCGs were both 11,365 bp long and have similar structure. Their tRNA gene sequences could be folded into canonical cloverleaf secondary structure, except for tRNASer (AGY), which lost its "DHU" arm. Based on the concatenated nucleotide sequences of the complete mitochondrial DNA genes of 16 Rallidae species, reconstruction of phylogenetic trees and analysis of the molecular clock of P. fusca and P. pusilla indicated that these species from a sister group, which in turn are sister group to Rallina eurizonoides. The genus Gallirallus is a sister group to genus Lewinia, and these groups in turn are sister groups to genus Porphyrio. Moreover, molecular clock analyses suggested that the basal divergence of Rallidae could be traced back to 40.47 (41.46‒39.45) million years ago (Mya), and the divergence of Porzana occurred approximately 5.80 (15.16‒0.79) Mya.
6 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2017 | 1 |
| 2016 | 1 |