Parthenogenesis without costs in a grasshopper with hybrid origins

Autor: Michael R. Kearney, Moshe E. Jasper, Vanessa L. White, Ian J. Aitkenhead, Mark J. Blacket, Jacinta D. Kong, Steven L. Chown, Ary A. Hoffmann

Publikováno v: Science. 376:1110-1114

The rarity of parthenogenetic species is typically attributed to the reduced genetic variability that accompanies the absence of sex, yet natural parthenogens can be surprisingly successful. Ecological success is often proposed to derive from hybridi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b47b87a6c092f0fbb1736d1a0bd6c8f
https://doi.org/10.1126/science.abm1072

Hydrogen-Oxidizing Bacteria Are Abundant in Desert Soils and Strongly Stimulated by Hydration

Autor: Steven L. Chown, Chris Greening, Don A. Cowan, Sean K. Bay, Rachael Lappan, Karen Jordaan, Laura Meredith, Nimrod Wieler, Eleonora Chiri, Xiyang Dong, Ian J. Aitkenhead

Publikováno v: mSystems
mSystems, Vol 5, Iss 6 (2020)

Desert ecosystems, spanning a third of the earth’s surface, harbor remarkably diverse microbial life despite having a low potential for photosynthesis. In this work, we reveal that atmospheric hydrogen serves as a major previously overlooked energy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dcc1ba6ae79150ff937c3096e4cf58e
http://europepmc.org/articles/PMC7677003

Sex-specific effects of mitochondrial haplotype on metabolic rate in Drosophila melanogaster support predictions of the Mother's Curse hypothesis

Autor: Steven L. Chown, Damian K. Dowling, Ian J. Aitkenhead, David J. Clancy, Venkatesh Nagarajan-Radha

Publikováno v: Philos Trans R Soc Lond B Biol Sci

Evolutionary theory proposes that maternal inheritance of mitochondria will facilitate the accumulation of mitochondrial DNA (mtDNA) mutations that are harmful to males but benign or beneficial to females. Furthermore, mtDNA haplotypes sampled from a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bade591a49fa1cedb8d60003a03ee5e0
https://europepmc.org/articles/PMC6939370/

Comparing thermal performance curves across traits: how consistent are they?

Autor: Steven L. Chown, Mads Fristrup Schou, Ian J. Aitkenhead, Marina Telonis Scott, Carla M. Sgrò, Charlene Janion-Scheepers, Allannah Clemson, Vanessa Kellermann

Publikováno v: Kellermann, V, Chown, S L, Schou, M F, Aitkenhead, I, Janion-Scheepers, C, Clemson, A, Scott, M T & Sgrò, C M 2019, ' Comparing thermal performance curves across traits : How consistent are they? ', Journal of Experimental Biology, vol. 222, no. 11, jeb193433. https://doi.org/10.1242/jeb.193433

Thermal performance curves (TPCs) are intended to approximate the relationship between temperature and fitness, and are commonly integrated into species distributional models for understanding climate change responses. However, TPCs may vary across t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3fa4a857a950068243eb571f8eb5ee1
https://doi.org/10.1242/jeb.193433

Tracheal branching in ants is area-decreasing, violating a central assumption of network transport models.

Autor: Ian J Aitkenhead, Grant A Duffy, Citsabehsan Devendran, Michael R Kearney, Adrian Neild, Steven L Chown

Publikováno v: PLoS Computational Biology, Vol 16, Iss 4, p e1007853 (2020)

The structure of tubular transport networks is thought to underlie much of biological regularity, from individuals to ecosystems. A core assumption of transport network models is either area-preserving or area-increasing branching, such that the summ

Externí odkaz: https://doaj.org/article/7c8dd091b1c24789b32be190db381265