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Inheritance and recombination of mitochondrial genomes in plants, fungi and animals.
TLDR
It is argued that occasional biparental mitochondrial transmission may allow organisms to achieve the best of both worlds by facilitating mutational clearance but continuing to restrict the spread of selfish genetic elements. Expand
Signs of sex: what we know and how we know it.
TLDR
The strengths and weaknesses of various molecular- and organismal-based approaches for recognizing signs of sex and their applications and relevance to evolutionary biology are considered. Expand
Adaptation and colonization history affect the evolution of clines in two introduced species.
TLDR
Phenotypic clines generally persisted when tested against the neutral expectation, although some clines disappeared (and one cline emerged) when the effects of genetic ancestry were statistically removed, and Colonization history, estimated using genetic markers, is a useful null model for tests of adaptive trait divergence. Expand
Accelerated mutation accumulation in asexual lineages of a freshwater snail.
TLDR
The accelerated rate of mutation accumulation observed in asexual P. antipodarum provides some of the most direct evidence to date for a link between asexuality and mutation accumulation and implies that mutational buildup could be rapid enough to contribute to the short-term evolutionary mechanisms that favor sexual reproduction. Expand
What Can Asexual Lineage Age Tell Us about the Maintenance of Sex?
TLDR
It is found that the distribution of asexual lineage age estimates follows a surprisingly regular distribution, to the extent that asexual taxa viewed as “scandalously” ancient merely fall on the high end of this distribution, which is interpreted to mean that similar mechanisms may determine a sexual lineage age across eukaryotic taxa. Expand
WIDE VARIATION IN PLOIDY LEVEL AND GENOME SIZE IN A NEW ZEALAND FRESHWATER SNAIL WITH COEXISTING SEXUAL AND ASEXUAL LINEAGES
TLDR
The discovery of widespread variation in ploidy level and genome size in such a well‐studied system highlights the importance of broad, extensive, and ecologically representative sampling in uncovering ploidsylevel and genome‐size variation in natural populations. Expand
Mitochondrial haplotypes and the New Zealand origin of clonal European Potamopyrgus, an invasive aquatic snail
TLDR
The results clearly demonstrate the New Zealand origin of European populations and imply the successful colonization by two distinct mitochondrial lineages, which is consistent with previous data based on nuclear markers. Expand
Nesting fidelity and molecular evidence for natal homing in the freshwater turtle, Graptemys kohnii
TLDR
Females showed high fidelity to nesting areas, even after being transplanted several kilometres away, and the patterns of fidelity and genotype distributions are consistent with homing at a scale that may affect population sex ratios. Expand
The causes of mutation accumulation in mitochondrial genomes
TLDR
It is concluded that a sexual orientation may not be the primary determinant of the high mutation load in mitochondrial DNA (mtDNA), and an experimental framework using variation in mating system between closely related species to disentangle the root causes of mutation accumulation in mitochondrial genomes is described. Expand
EVIDENCE FOR MAINTENANCE OF SEX BY PATHOGENS IN PLANTS
TLDR
It is shown that plant species attacked by more fungal pathogen species have higher outcrossing rates than plants with fewer enemies, which is consistent with the hypothesis that pathogen‐mediated selection may contribute to the maintenance of outCrossing in species of seed plants. Expand
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