Works (8)

Updated: August 6th, 2023 21:15

2022 journal article

Polygenic sex determination produces modular sex polymorphism in an African cichlid fish

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 119(14).

By: E. Moore n, P. Ciccotto*, E. Peterson n, M. Lamm n, R. Albertson* & R. Roberts n

author keywords: sex chromosomes; Malawi African cichlids; sexual dimorphism; sex determination
MeSH headings : Animals; Cichlids / genetics; Cichlids / physiology; Female; Genetic Fitness; Male; Phenotype; Polymorphism, Genetic; Sex Characteristics; Sex Chromosomes / genetics; Sex Determination Processes
TL;DR: This work investigates how sex differences emerge in a species with more than one set of sex chromosomes, measuring a variety of morphological, physiological, and behavioral traits and finds that significant creation or loss of variation in diverse traits can occur during transitions among sex chromosome systems. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID
Added: May 10, 2022

2020 journal article

Exploratory behaviour is associated with microhabitat and evolutionary radiation in Lake Malawi cichlids

ANIMAL BEHAVIOUR, 160, 121–134.

By: Z. Johnson*, E. Moore n, R. Wong*, J. Godwin n, J. Streelman* & R. Roberts n

author keywords: behavioural integration; behavioural modularity; habitat preference; light-dark; novel stimuli; novel tank; open field; scototaxis; stress response; thigmotaxis
TL;DR: This study investigates behavioural responses to novel environments, or exploratory behaviours, in a previously untested vertebrate system, Lake Malawi cichlid fishes, which comprises hundreds of phenotypically diverse species that have diverged in the past one million years. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID
Added: February 27, 2020

2019 journal article

Chromosome-scale assemblies reveal the structural evolution of African cichlid genomes

GIGASCIENCE, 8(4).

author keywords: genome assembly; African cichlids; comparative genomics; genome rearrangements; chromosome evolution; karyotype; inversion; recombination; transposable elements; genetic maps
MeSH headings : Animals; Chromosome Mapping; Cichlids / genetics; Computational Biology / methods; DNA Transposable Elements; Diploidy; Evolution, Molecular; Genetic Linkage; Genome; Genomics / methods; Karyotype; Molecular Sequence Annotation; Recombination, Genetic; Repetitive Sequences, Nucleic Acid
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID
Added: July 29, 2019

2019 journal article

Variation in pigmentation gene expression is associated with distinct aposematic color morphs in the poison frog Dendrobates auratus

BMC EVOLUTIONARY BIOLOGY, 19.

author keywords: Aposematism; Coloration; Color variation; Poison frog
MeSH headings : Animals; Anura / genetics; Color; Gene Expression Regulation; Gene Ontology; Melanins / metabolism; Phenotype; Principal Component Analysis; Skin Pigmentation / genetics; Transcriptome / genetics
TL;DR: This work has taken a transcriptomics-based approach to elucidate the underlying genetic mechanisms affecting color and pattern in a highly polytypic poison frog, and finds differential expression of a suite of genes that control melanogenesis, melanocyte differentiation, and melanocyte proliferation. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: May 6, 2019

2017 journal article

An allelic series at pax7a is associated with colour polymorphism diversity in Lake Malawi cichlid fish

MOLECULAR ECOLOGY, 26(10), 2625–2639.

By: R. Roberts n, E. Moore n & T. Kocher*

author keywords: allelic series; cichlid fish; colour morphs; pax7; pigmentation
MeSH headings : Africa, Eastern; Alleles; Animals; Cichlids / genetics; Color; Female; Fish Proteins / genetics; Lakes; PAX2 Transcription Factor / genetics; Phenotype; Pigmentation / genetics
TL;DR: It is confirmed that pax7a-associated blotch morphs result primarily from modulation of melanophore development and survival, and should serve as a case study for understanding the molecular genetic control of pX7a expression and the evolution of sex-associated alleles. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2017 journal article

Genetic sex determination in Astatotilapia calliptera, a prototype species for the Lake Malawi cichlid radiation

SCIENCE OF NATURE, 104(5-6).

By: E. Peterson n, M. Cline n, E. Moore n, N. Roberts n & R. Roberts n

author keywords: Sex chromosome; Genetic sex determination; Cichlid; Fish; Astatotilapia calliptera
MeSH headings : Animal Distribution; Animals; Cichlids / classification; Cichlids / genetics; Cichlids / physiology; Female; Genetic Markers / genetics; Male; Sex Chromosomes / genetics; Sex Determination Processes / genetics; Species Specificity
TL;DR: This study identifies a male heterogametic XY system segregating at linkage group (LG) 7 in an A. calliptera line that originated from Lake Malawi, at a locus previously shown to act as an XY sex determination system in multiple species of Lake Malawian cichlids. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2016 journal article

Genital morphology and allometry differ by species and sex in Malawi cichlid fishes

Hydrobiologia, 791(1), 127–143.

By: E. Moore n & R. Roberts n

author keywords: Genital morphology; Cichlid fishes; Sexual dimorphism; Anogenital distance; Genital papilla
TL;DR: It is found that the most sexually distinct morphology is in the Lake Malawi rock cichlids and the least sexual dimorphism in the riverine outgroup; additionally, diversity in metrics within genus indicates that these traits are recently evolving. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, ORCID, Crossref
Added: August 6, 2018

2013 article

Polygenic sex determination

Moore, E. C., & Roberts, R. B. (2013, June 17). CURRENT BIOLOGY, Vol. 23, pp. R510–R512.

By: E. Moore n & R. Roberts n

MeSH headings : Animals; Female; Male; Multifactorial Inheritance; Sex Chromosomes / genetics; Sex Determination Processes / genetics; Sex Determination Processes / physiology; Signal Transduction
TL;DR: Sex determination is the mechanism by which sexual organisms direct gonad development towards distinct but reproductively compatible outcomes. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: August 6, 2018

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