6 Works

Data from: The genetic basis and experimental evolution of inbreeding depression in Caenorhabditis elegans

Ivo M. Chelo, S. Carvalho, M. Roque, S. R. Proulx & Henrique Teotónio
Determining the genetic basis of inbreeding depression is important for understanding the role of selection in the evolution of mixed breeding systems. Here, we investigate how androdioecy (a breeding system characterized by partial selfing and outcrossing) and dioecy (characterized by obligatory outcrossing) influence the experimental evolution of inbreeding depression in Caenorhabditis elegans. We derived inbred lines from ancestral and evolved populations and found that the dioecious lineages underwent more extinction than androdioecious lineages. For both...

Data from: Parasites affect food web structure primarily through increased diversity and complexity

Jennifer A. Dunne, Kevin D. Lafferty, Andrew P. Dobson, Ryan F. Hechinger, Armand M. Kuris, Neo D. Martinez, John P. McLaughlin, Kim N. Mouritsen, Robert Poulin, Karsten Reise, Daniel B. Stouffer, David W. Thieltges, Richard J. Williams & Claus Dieter Zander
Comparative research on food web structure has revealed generalities in trophic organization, produced simple models, and allowed assessment of robustness to species loss. These studies have mostly focused on free-living species. Recent research has suggested that inclusion of parasites alters structure. We assess whether such changes in network structure result from unique roles and traits of parasites or from changes to diversity and complexity. We analyzed seven highly resolved food webs that include metazoan parasite...

Data from: Structural, compositional and trait differences between native and non-native dominated grassland patches

Nicole A. Molinari & Carla M. D'Antonio
1. Non-native species with growth forms that are different from the native flora may alter the physical structure of the area they invade, thereby changing the resources available to resident species. This in turn can select for species with traits suited for the new growing environment. 2. We used adjacent uninvaded and invaded grassland patches to evaluate whether the shift in dominance from a native perennial bunchgrass, Nassella pulchra, to the early season, non-native annual...

Data from: Combined analyses of kinship and FST suggest potential drivers of chaotic genetic patchiness in high gene flow populations

Matthew Iacchei, Tal Ben-Horin, Kimberly A. Selkoe, Christopher E. Bird, Francisco J. Garcia-Rodriguez & Robert J. Toonen
We combine kinship estimates with traditional F-statistics to explain contemporary drivers of population genetic differentiation despite high gene flow. We investigate range-wide population genetic structure of the California spiny (or red rock) lobster (Panulirus interruptus) and find slight, but significant global population differentiation in mtDNA (ΦST = 0.006, P = 0.001; Dest_Chao = 0.025) and seven nuclear microsatellites (FST = 0.004, P < 0.001; Dest_Chao = 0.03), despite the species’ 240- to 330-day pelagic larval...

Data from: Influence of late Quaternary climate change on present patterns of genetic variation in valley oak, Quercus lobata Née

Paul F. Gugger, Makihiko Ikegami & Victoria L. Sork
Phylogeography and ecological niche models (ENMs) suggest that late Quaternary glacial cycles have played a prominent role in shaping present population genetic structure and diversity, but have not applied quantitative methods to dissect the relative contribution of past and present climate vs. other forces. We integrate multilocus phylogeography, climate-based ENMs and multivariate statistical approaches to infer the effects of late Quaternary climate change on contemporary genetic variation of valley oak (Quercus lobata Née). ENMs indicated...

Data from: Lights out: the evolution of bacterial bioluminescence in Loliginidae

Frank E. Anderson, Alexis Bergman, Samantha H. Cheng, M. Sabrina Pankey & Tooraj Valinassab
Representatives of several metazoan clades engage in symbiotic interactions with bioluminescent bacteria, but the evolution and maintenance of these interactions remain poorly understood. Uroteuthis is a genus of loliginid squid (Cephalopoda: Loliginidae) characterized by paired ventral photophores (light organs) housing bioluminescent bacteria. While previous phylogenetic studies have suggested that Uroteuthis is closely related to Loliolus, a genus of non-bioluminescent species, this relationship remains unresolved. To illuminate Uroteuthis and Loliolus phylogeny and its implications for the...

Registration Year

  • 2013
    6

Resource Types

  • Dataset
    6

Affiliations

  • University of California, Santa Barbara
    6
  • University of California Los Angeles
    2
  • Estación Biológica de Doñana
    1
  • University of Hamburg
    1
  • Princeton University
    1
  • Aarhus University
    1
  • Santa Fe Institute
    1
  • Texas A&M University
    1
  • Royal Netherlands Institute for Sea Research
    1
  • University of Otago
    1