5 Works

Measuring phylogenetic information of incomplete sequence data

Tae-Kun Seo, Olivier Gascuel & Jeffrey Thorne
Widely used approaches for extracting phylogenetic information from aligned sets of molecular sequences rely upon probabilistic models of nucleotide substitution or amino-acid replacement. The phylogenetic information that can be extracted depends on the number of columns in the sequence alignment and will be decreased when the alignment contains gaps due to insertion or deletion events. Motivated by the measurement of information loss, we suggest assessment of the Effective Sequence Length (ESL) of an aligned data...

Enduring evolutionary embellishment of cloudinids

Tae-Yoon Park, Jikhan Jung, Mirinae Lee, Sangmin Lee, Yong Yi Zhen, Hong Hua, Lucas V. Warren & Nigel C. Hughes
The Ediacaran–Cambrian transition and the following Cambrian Explosion are among the most fundamental events in the evolutionary history of animals. Understanding these events is enhanced when phylogenetic linkages can be established among animal fossils across this interval and their trait evolution monitored. Doing this is challenging because the fossil record of animal lineages that span this transition is sparse, preserved morphologies generally simple, and lifestyles in the Ediacaran and Cambrian quite different. Here we identify...

Contrasting early successional dynamics of bacterial and fungal communities in recently deglaciated soils of the maritime Antarctic

Hyeryeon Gyeong & Mincheol Kim
Although microorganisms are the very first colonizers of recently deglaciated soils even prior to plant colonization, the drivers and patterns of microbial community succession at early-successional stages remain poorly understood. The successional dynamics and assembly processes of bacterial and fungal communities were compared on a glacier foreland in the maritime Antarctic across the ~10-year soil-age gradient from bare soil to sparsely vegetated area. Bacterial communities shifted more rapidly than fungal communities in response to glacial...

Data for butterfly near-infrared adaptation research

Changku Kang, Sehyuk Lim, Won Young Lee, Yunji Choi, Devi Stuart-Fox & Blanca Huertas
Climatic gradients frequently predict large-scale ecogeographical patterns in animal coloration, but the underlying causes are often difficult to disentangle. We examined ecogeographical patterns of reflectance among 343 European butterfly species and isolated the role of selection for thermal benefits by comparing animal-visible and near-infrared (NIR) wavebands. NIR light accounts for ~50% of solar energy but cannot be seen by animals so functions primarily in thermal control. We found that reflectance of both dorsal and ventral...

Seasonal dynamics of sinking organic matter in the Pacific Arctic Ocean revealed by nitrogen isotope ratios of amino acids

Hyuntae Choi, Eun Jin Yang, Sung-Ho Kang, Dongseon Kim & Kyung-Hoon Shin
Biological sources of organic matter in sinking particles were investigated using nitrogen isotope analysis of amino acids in the Pacific Arctic Ocean, which has experienced a rapidly changing climate, sea-ice retreat, and enhanced primary production over the past few decades. The average trophic position based on differences in the nitrogen isotope ratios of glutamic acid and phenylalanine indicates the relative proportions of photoautotrophs and heterotrophs in sinking particles. Decreasing values (close to 1.0) in summer...

Registration Year

  • 2021

Resource Types

  • Dataset


  • Korea Polar Research Institute
  • Sao Paulo State University
  • Mokpo National University
  • Northwest University
  • Institut de Systématique, Évolution, Biodiversité
  • Korea Institute of Ocean Science and Technology
  • Natural History Museum
  • University of California, Riverside
  • Imperial College London
  • Hanyang University