Dynamics of an ant-ant obligate mutualism: colony growth, density dependence and frequency dependence.


:In insect societies, worker vs. queen development (reproductive caste) is typically governed by environmental factors, but many Pogonomyrmex seed-harvester ants exhibit strict genetic caste determination, resulting in an obligate mutualism between two reproductively isolated lineages. Same-lineage matings produce fertile queens while alternate-lineage matings produce sterile workers. Because new virgin queens mate randomly with multiple males of each lineage type, and both worker and queen phenotypes are required for colony growth and future reproduction, fitness is influenced by the relative frequency of each lineage involved in the mutualistic breeding system. While models based solely on frequency-dependent selection predict the convergence of lineage frequencies towards equal (0.5/0.5), we surveyed the lineage ratios of 49 systems across the range of the mutualism and found that the global lineage frequency differed significantly from equal. Multiple regression analysis of our system survey data revealed that the density and relative frequency of one lineage decreases at lower elevations, while the frequency of the alternate lineage increases with total colony density. While the production of the first worker cohort is largely frequency dependent, relying on the random acquisition of worker-biased sperm stores, subsequent colony growth is independent of lineage frequency. We provide a simulation model showing that a net ecological advantage held by one lineage can lead to the maintenance of stable but asymmetric lineage frequencies. Collectively, these findings suggest that a combination of frequency-dependent and frequency-independent mechanisms can generate many different localized and independently evolving system equilibria.


Mol Ecol


Molecular ecology


Anderson KE,Wheeler DE,Yang K,Linksvayer TA




Has Abstract


2011-04-01 00:00:00












  • Genetic variation and population differentiation in the lichen-forming ascomycete Xanthoria parietina on the island Storfosna, central Norway.

    abstract::Genetic diversity and fine-scale population structure in the lichen-forming ascomycete Xanthoria parietina was investigated using sequence variation in part of the intergenic spacer (IGS) and the complete internal transcribed spacer (ITS) regions of the nuclear ribosomal DNA. Sampling included 213 and 225 individuals,...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Lindblom L,Ekman S

    更新日期:2006-05-01 00:00:00

  • Factors affecting the reproductive success of dominant male meerkats.

    abstract::Identifying traits that affect the reproductive success of individuals is fundamental for our understanding of evolutionary processes. In cooperative breeders, a dominant male typically restricts mating access to the dominant female for extended periods, resulting in pronounced variation in reproductive success among ...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Spong GF,Hodge SJ,Young AJ,Clutton-Brock TH

    更新日期:2008-05-01 00:00:00

  • A DNA test to sex ratite birds.

    abstract::DNA-based sex tests now exist for many avian species. However, none of these tests are widely applicable to ratites. We present DNA sequence data for a locus that is W chromosome-linked in the kiwi, ostrich, cassowary, rhea, and emu. At the amino acid level, this sequence has significant homology to X-linked genes in ...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Huynen L,Millar CD,Lambert DM

    更新日期:2002-04-01 00:00:00

  • Density-related changes in selection pattern for major histocompatibility complex genes in fluctuating populations of voles.

    abstract::Host-pathogen interactions are of particular interest in studies of the interplay between population dynamics and natural selection. The major histocompatibility complex (MHC) genes of demographically fluctuating species are highly suitable markers for such studies, because they are involved in initiating the immune r...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Bryja J,Charbonnel N,Berthier K,Galan M,Cosson JF

    更新日期:2007-12-01 00:00:00

  • Dispersal ability and habitat requirements determine landscape-level genetic patterns in desert aquatic insects.

    abstract::Species occupying the same geographic range can exhibit remarkably different population structures across the landscape, ranging from highly diversified to panmictic. Given limitations on collecting population-level data for large numbers of species, ecologists seek to identify proximate organismal traits-such as disp...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Phillipsen IC,Kirk EH,Bogan MT,Mims MC,Olden JD,Lytle DA

    更新日期:2015-01-01 00:00:00

  • Invasion genetics of the Mediterranean fruit fly: variation in multiple nuclear introns.

    abstract::Biological invasions generally start from low initial population sizes, leading to reduced genetic variation in nuclear and especially mitochondrial DNA. Consequently, genetic approaches for the study of invasion history and population structure are difficult. An extreme example is the Mediterranean fruit fly, Ceratit...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Villablanca FX,Roderick GK,Palumbi SR

    更新日期:1998-05-01 00:00:00

  • Loss of dendritic connectivity in southern California's urban riverscape facilitates decline of an endemic freshwater fish.

    abstract::Life history adaptations and spatial configuration of metapopulation networks allow certain species to persist in extreme fluctuating environments, yet long-term stability within these systems relies on the maintenance of linkage habitat. Degradation of such linkages in urban riverscapes can disrupt this dynamic in aq...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Richmond JQ,Backlin AR,Galst-Cavalcante C,O'Brien JW,Fisher RN

    更新日期:2018-01-01 00:00:00

  • Multiple dispersal vectors drive range expansion in an invasive marine species.

    abstract::The establishment and subsequent spread of invasive species is widely recognized as one of the most threatening processes contributing to global biodiversity loss. This is especially true for marine and estuarine ecosystems, which have experienced significant increases in the number of invasive species with the increa...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Richardson MF,Sherman CD,Lee RS,Bott NJ,Hirst AJ

    更新日期:2016-10-01 00:00:00

  • Epigenetic variation reflects dynamic habitat conditions in a rare floodplain herb.

    abstract::Variation of DNA methylation is thought to play an important role for rapid adjustments of plant populations to dynamic environmental conditions, thus compensating for the relatively slow response time of genetic adaptations. However, genetic and epigenetic variation of wild plant populations has not yet been directly...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Schulz B,Eckstein RL,Durka W

    更新日期:2014-07-01 00:00:00

  • Resolution of natural groups using iterative assignment tests: an example from two species of Australian native rats (Rattus).

    abstract::Sympatric individuals of Rattus fuscipes and Rattus leucopus, two Australian native rats from the tropical wet forests of north Queensland, are difficult to distinguish morphologically and are often confused in the field. When we started a study on fine-scale movements of these species, using microsatellite markers, w...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Vázquez-Domínguez E,Paetkau D,Tucker N,Hinten G,Moritz C

    更新日期:2001-08-01 00:00:00

  • Origin and in situ diversification in Hemidactylus geckos of the Socotra Archipelago.

    abstract::The Socotra Archipelago is an ancient continental fragment of Gondwanan origin and one of the most isolated landforms on Earth and a biodiversity hot spot. Yet, the biogeography and evolutionary history of its endemic fauna still remain largely overlooked. We investigate the origin, tempo and mode of diversification i...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Gómez-Díaz E,Sindaco R,Pupin F,Fasola M,Carranza S

    更新日期:2012-08-01 00:00:00

  • Population structure and phylogeography of Solanum pimpinellifolium inferred from a nuclear gene.

    abstract::Phylogeographical studies are emerging as a powerful tool for understanding the population structure and evolution of wild relatives of crop species. Because of their value as genetic resources, there is great interest in exploring the distribution of variation in wild relatives of cultivated plants. In this study, we...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Caicedo AL,Schaal BA

    更新日期:2004-07-01 00:00:00

  • Multiple gene genealogies and AFLPs suggest cryptic speciation and long-distance dispersal in the basidiomycete Serpula himantioides (Boletales).

    abstract::Serpula himantioides (Boletales, Basidiomycota) produces thin resupinate basidiocarps on dead coniferous wood worldwide and causes damage in buildings as well. In this study, we present evidence for the existence of at least three phylogenetically defined cryptic species (referred to as Sib I-III) within the morphospe...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Kauserud H,Stensrud O,Decock C,Shalchian-Tabrizi K,Schumacher T

    更新日期:2006-02-01 00:00:00

  • Genome scans on experimentally evolved populations reveal candidate regions for adaptation to plant resistance in the potato cyst nematode Globodera pallida.

    abstract::Improving resistance durability involves to be able to predict the adaptation speed of pathogen populations. Identifying the genetic bases of pathogen adaptation to plant resistances is a useful step to better understand and anticipate this phenomenon. Globodera pallida is a major pest of potato crop for which a resis...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Eoche-Bosy D,Gautier M,Esquibet M,Legeai F,Bretaudeau A,Bouchez O,Fournet S,Grenier E,Montarry J

    更新日期:2017-09-01 00:00:00

  • Ecological and evolutionary drivers of haemoplasma infection and bacterial genotype sharing in a Neotropical bat community.

    abstract::Most emerging pathogens can infect multiple species, underlining the importance of understanding the ecological and evolutionary factors that allow some hosts to harbour greater infection prevalence and share pathogens with other species. However, our understanding of pathogen jumps is based primarily around viruses, ...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Becker DJ,Speer KA,Brown AM,Fenton MB,Washburne AD,Altizer S,Streicker DG,Plowright RK,Chizhikov VE,Simmons NB,Volokhov DV

    更新日期:2020-04-01 00:00:00

  • Quantitative and qualitative assessment of pollen DNA metabarcoding using constructed species mixtures.

    abstract::Pollen DNA metabarcoding-marker-based genetic identification of potentially mixed-species pollen samples-has applications across a variety of fields. While basic species-level pollen identification using standard DNA barcode markers is established, the extent to which metabarcoding (a) correctly assigns species identi...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Bell KL,Burgess KS,Botsch JC,Dobbs EK,Read TD,Brosi BJ

    更新日期:2019-01-01 00:00:00

  • How the truffle got its mate: insights from genetic structure in spontaneous and planted Mediterranean populations of Tuber melanosporum.

    abstract::The life cycles and dispersal of edible fungi are still poorly known, thus limiting our understanding of their evolution and domestication. The prized Tuber melanosporum produces fruitbodies (fleshy organs where meiospores mature) gathered in natural, spontaneously inoculated forests or harvested in plantations of nur...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Taschen E,Rousset F,Sauve M,Benoit L,Dubois MP,Richard F,Selosse MA

    更新日期:2016-11-01 00:00:00

  • A molecular diagnostic tool for the preliminary assessment of host-parasitoid associations in biological control programmes for a new invasive pest.

    abstract::Evaluation of host-parasitoid associations can be tenuous using conventional methods. Molecular techniques are well placed to identify trophic links and resolve host-parasitoid associations. Establishment of the highly invasive brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), outside Asia has p...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Gariepy TD,Haye T,Zhang J

    更新日期:2014-08-01 00:00:00

  • Plant dispersal in the sub-Antarctic inferred from anisotropic genetic structure.

    abstract::Climatic conditions and landscape features often strongly affect species' local distribution patterns, dispersal, reproduction and survival and may therefore have considerable impacts on species' fine-scale spatial genetic structure (SGS). In this study, we demonstrate the efficacy of combining fine-scale SGS analyses...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Born C,Le Roux PC,Spohr C,McGeoch MA,Van Vuuren BJ

    更新日期:2012-01-01 00:00:00

  • Challenging the inbreeding hypothesis in a eusocial mammal: population genetics of the naked mole-rat, Heterocephalus glaber.

    abstract::The role of genetic relatedness in the evolution of eusociality has been the topic of much debate, especially when contrasting eusocial insects with vertebrates displaying reproductive altruism. The naked mole-rat, Heterocephalus glaber, was the first described eusocial mammal. Although this discovery was based on an ...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Ingram CM,Troendle NJ,Gill CA,Braude S,Honeycutt RL

    更新日期:2015-10-01 00:00:00

  • Host use evolution in Chrysochus milkweed beetles: evidence from behaviour, population genetics and phylogeny.

    abstract::In two sister species of leaf beetles with overlapping host associations, Chrysochus auratus and C. cobaltinus, we established diet breadth and food preference of local populations for evaluation together with genetic differentiation between populations. While C. auratus turned out to be monophagous on the same plant ...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Dobler S,Farrell BD

    更新日期:1999-08-01 00:00:00

  • Can clone size serve as a proxy for clone age? An exploration using microsatellite divergence in Populus tremuloides.

    abstract::In long-lived clonal plants, the overall size of a clone is often used to estimate clone age. The size of a clone, however, might be largely determined by physical or biotic interactions, obscuring the relationship between clone size and age. Here, we use the accumulation of mutations at 14 microsatellite loci to esti...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Ally D,Ritland K,Otto SP

    更新日期:2008-11-01 00:00:00

  • Climate rather than geography separates two European honeybee subspecies.

    abstract::Both climatic and geographical factors play an important role for the biogeographical distribution of species. The Carpathian mountain ridge has been suggested as a natural geographical divide between the two honeybee subspecies Apis mellifera carnica and A. m. macedonica. We sampled one worker from one colony each at...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Coroian CO,Muñoz I,Schlüns EA,Paniti-Teleky OR,Erler S,Furdui EM,Mărghitaş LA,Dezmirean DS,Schlüns H,de la Rúa P,Moritz RF

    更新日期:2014-05-01 00:00:00

  • Selective sweeps and intercontinental migration in the cosmopolitan moss Ceratodon purpureus (Hedw.) Brid.

    abstract::The moss Ceratodon purpureus has long been used as a model system in plant development and physiology. However, the molecular population genetics of the species remains virtually unexplored. In this study, we used population genetic analyses of DNA sequence data from three unlinked loci (atpB-rbcL spacer, adk, and phy...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: McDaniel SF,Shaw AJ

    更新日期:2005-04-01 00:00:00

  • Detecting the signature of selection on immune genes in highly structured populations of wild sheep (Ovis dalli).

    abstract::The confounding effects of population structure complicate efforts to identify regions of the genome under the influence of selection in natural populations. Here we test for evidence of selection in three genes involved in vertebrate immune function - the major histocompatibility complex (MHC), interferon gamma (IFNG...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Worley K,Carey J,Veitch A,Coltman DW

    更新日期:2006-03-01 00:00:00

  • Genomic characterization of sex-identification markers in Sebastes carnatus and Sebastes chrysomelas rockfishes.

    abstract::Fish have evolved a variety of sex-determining (SD) systems including male heterogamy (XY), female heterogamy (ZW) and environmental SD. Little is known about SD mechanisms of Sebastes rockfishes, a highly speciose genus of importance to evolutionary and conservation biology. Here, we characterize the sex determinatio...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Fowler BL,Buonaccorsi VP

    更新日期:2016-05-01 00:00:00

  • Drift, not selection, shapes toll-like receptor variation among oceanic island populations.

    abstract::Understanding the relative role of different evolutionary forces in shaping the level and distribution of functional genetic diversity among natural populations is a key issue in evolutionary and conservation biology. To do so accurately genetic data must be analysed in conjunction with an unambiguous understanding of...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Gonzalez-Quevedo C,Spurgin LG,Illera JC,Richardson DS

    更新日期:2015-12-01 00:00:00

  • Checking the geographical origin of oak wood: molecular and statistical tools.

    abstract::New methods for better identification of timber geographical origin would constitute an important technical element in the forest industry, for phytosanitary certification procedures or in the chain of custody developed for the certification of timber from sustainably managed forests. In the case of the European white...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Deguilloux MF,Pemonge MH,Bertel L,Kremer A,Petit RJ

    更新日期:2003-06-01 00:00:00

  • Does genetic distance between parental species influence outcomes of hybridization among coral reef butterflyfishes?

    abstract::Christmas Island is located at the overlap of the Indian and Pacific Ocean marine provinces and is a hot spot for marine hybridization. Here, we evaluate the ecological framework and genetic consequences of hybridization between butterflyfishes Chaetodon guttatissimus and Chaetodon punctatofasciatus. Further, we compa...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Montanari SR,Hobbs JP,Pratchett MS,Bay LK,Van Herwerden L

    更新日期:2014-06-01 00:00:00

  • Landscape genomics of Quercus lobata reveals genes involved in local climate adaptation at multiple spatial scales.

    abstract::Understanding how the environment shapes genetic variation provides critical insight about the evolution of local adaptation in natural populations. At multiple spatial scales and multiple geographic contexts within a single species, such information could address a number of fundamental questions about the scale of l...

    journal_title:Molecular ecology

    pub_type: 杂志文章


    authors: Gugger PF,Fitz-Gibbon ST,Albarrán-Lara A,Wright JW,Sork VL

    更新日期:2020-11-12 00:00:00