LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 7 of total 7

Search options

  1. Article ; Online: Publisher Correction: The genomics of coloration provides insights into adaptive evolution.

    Orteu, Anna / Jiggins, Chris D

    Nature reviews. Genetics

    2020  Volume 21, Issue 8, Page(s) 503

    Abstract: An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...

    Abstract An amendment to this paper has been published and can be accessed via a link at the top of the paper.
    Language English
    Publishing date 2020-05-18
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2035157-4
    ISSN 1471-0064 ; 1471-0056
    ISSN (online) 1471-0064
    ISSN 1471-0056
    DOI 10.1038/s41576-020-0249-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: The genomics of coloration provides insights into adaptive evolution.

    Orteu, Anna / Jiggins, Chris D

    Nature reviews. Genetics

    2020  Volume 21, Issue 8, Page(s) 461–475

    Abstract: Coloration is an easily quantifiable visual trait that has proven to be a highly tractable system for genetic analysis and for studying adaptive evolution. The application of genomic approaches to evolutionary studies of coloration is providing new ... ...

    Abstract Coloration is an easily quantifiable visual trait that has proven to be a highly tractable system for genetic analysis and for studying adaptive evolution. The application of genomic approaches to evolutionary studies of coloration is providing new insight into the genetic architectures underlying colour traits, including the importance of large-effect mutations and supergenes, the role of development in shaping genetic variation and the origins of adaptive variation, which often involves adaptive introgression. Improved knowledge of the genetic basis of traits can facilitate field studies of natural selection and sexual selection, making it possible for strong selection and its influence on the genome to be demonstrated in wild populations.
    MeSH term(s) Adaptation, Biological ; Animals ; Biological Evolution ; Genetic Variation ; Genome ; Genomics/methods ; Multifactorial Inheritance ; Mutation ; Phenotype ; Pigmentation/genetics ; Pigments, Biological/genetics ; Quantitative Trait Loci ; Quantitative Trait, Heritable ; Selection, Genetic
    Chemical Substances Pigments, Biological
    Language English
    Publishing date 2020-05-07
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2035157-4
    ISSN 1471-0064 ; 1471-0056
    ISSN (online) 1471-0064
    ISSN 1471-0056
    DOI 10.1038/s41576-020-0234-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Colour polymorphism associated with a gene duplication in male wood tiger moths.

    Brien, Melanie N / Orteu, Anna / Yen, Eugenie C / Galarza, Juan A / Kirvesoja, Jimi / Pakkanen, Hannu / Wakamatsu, Kazumasa / Jiggins, Chris D / Mappes, Johanna

    eLife

    2023  Volume 12

    Abstract: Colour is often used as an aposematic warning signal, with predator learning expected to lead to a single colour pattern within a population. However, there are many puzzling cases where aposematic signals are also polymorphic. The wood tiger moth, ...

    Abstract Colour is often used as an aposematic warning signal, with predator learning expected to lead to a single colour pattern within a population. However, there are many puzzling cases where aposematic signals are also polymorphic. The wood tiger moth,
    MeSH term(s) Male ; Animals ; Moths/genetics ; Color ; Gene Duplication ; Wood ; Pigmentation/genetics
    Language English
    Publishing date 2023-10-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.80116
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Transposable Element Insertions Are Associated with Batesian Mimicry in the Pantropical Butterfly Hypolimnas misippus.

    Orteu, Anna / Kucka, Marek / Gordon, Ian J / Ng'iru, Ivy / van der Heijden, Eva S M / Talavera, Gerard / Warren, Ian A / Collins, Steve / Ffrench-Constant, Richard H / Martins, Dino J / Chan, Yingguang Frank / Jiggins, Chris D / Martin, Simon H

    Molecular biology and evolution

    2024  Volume 41, Issue 3

    Abstract: Hypolimnas misippus is a Batesian mimic of the toxic African Queen butterfly (Danaus chrysippus). Female H. misippus butterflies use two major wing patterning loci (M and A) to imitate three color morphs of D. chrysippus found in different regions of ... ...

    Abstract Hypolimnas misippus is a Batesian mimic of the toxic African Queen butterfly (Danaus chrysippus). Female H. misippus butterflies use two major wing patterning loci (M and A) to imitate three color morphs of D. chrysippus found in different regions of Africa. In this study, we examine the evolution of the M locus and identify it as an example of adaptive atavism. This phenomenon involves a morphological reversion to an ancestral character that results in an adaptive phenotype. We show that H. misippus has re-evolved an ancestral wing pattern present in other Hypolimnas species, repurposing it for Batesian mimicry of a D. chrysippus morph. Using haplotagging, a linked-read sequencing technology, and our new analytical tool, Wrath, we discover two large transposable element insertions located at the M locus and establish that these insertions are present in the dominant allele responsible for producing mimetic phenotype. By conducting a comparative analysis involving additional Hypolimnas species, we demonstrate that the dominant allele is derived. This suggests that, in the derived allele, the transposable elements disrupt a cis-regulatory element, leading to the reversion to an ancestral phenotype that is then utilized for Batesian mimicry of a distinct model, a different morph of D. chrysippus. Our findings present a compelling instance of convergent evolution and adaptive atavism, in which the same pattern element has independently evolved multiple times in Hypolimnas butterflies, repeatedly playing a role in Batesian mimicry of diverse model species.
    MeSH term(s) Animals ; Butterflies/genetics ; DNA Transposable Elements ; Biological Mimicry/genetics ; Phenotype ; Africa ; Wings, Animal/anatomy & histology
    Chemical Substances DNA Transposable Elements
    Language English
    Publishing date 2024-02-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 998579-7
    ISSN 1537-1719 ; 0737-4038
    ISSN (online) 1537-1719
    ISSN 0737-4038
    DOI 10.1093/molbev/msae041
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: The dynamics of cyanide defences in the life cycle of an aposematic butterfly: Biosynthesis versus sequestration

    Pinheiro de Castro, Érika C / Demirtas, Rojan / Orteu, Anna / Olsen, Carl Erik / Motawie, Mohammed Saddik / Zikan Cardoso, Márcio / Zagrobelny, Mika / Bak, Søren

    Insect biochemistry and molecular biology. 2020 Jan., v. 116

    2020  

    Abstract: Heliconius butterflies are highly specialized in Passiflora plants, laying eggs and feeding as larvae only on them. Interestingly, both Heliconius butterflies and Passiflora plants contain cyanogenic glucosides (CNglcs). While feeding on specific ... ...

    Abstract Heliconius butterflies are highly specialized in Passiflora plants, laying eggs and feeding as larvae only on them. Interestingly, both Heliconius butterflies and Passiflora plants contain cyanogenic glucosides (CNglcs). While feeding on specific Passiflora species, Heliconius melpomene larvae are able to sequester simple cyclopentenyl CNglcs, the most common CNglcs in this plant genus. Yet, aromatic, aliphatic, and modified CNglcs have been reported in Passiflora species and they were never tested for sequestration by heliconiine larvae. As other cyanogenic lepidopterans, H. melpomene also biosynthesize the aliphatic CNglcs linamarin and lotaustralin, and their toxicity does not rely exclusively on sequestration. Although the genes encoding the enzymes in the CNglc biosynthesis have not yet been biochemically characterized in butterflies, the cytochromes P450 CYP405A4, CYP405A5, CYP405A6 and CYP332A1 have been hypothesized to be involved in this pathway in H. melpomene. In this study, we determine how the CNglc composition and expression of the putative P450s involved in the biosynthesis of these compounds vary at different developmental stages of Heliconius butterflies. We also establish which kind of CNglcs H. melpomene larvae can sequester from Passiflora. By analysing the chemical composition of the haemolymph from larvae fed with different Passiflora diets, we show that H. melpomene is able to sequestered prunasin, an aromatic CNglcs, from P. platyloba. They are also able to sequester amygdalin, gynocardin, [C13/C14]linamarin and [C13/C14]lotaustralin painted on the plant leaves. The CNglc tetraphyllin B-sulphate from P. caerulea is not detected in the larval haemolymph, suggesting that such modified CNglcs cannot be sequestered by Heliconius. Although pupae and virgin adults contain dihydrogynocardin resulting from larval sequestration, this compound was metabolized during adulthood, and not used as nuptial gift or transferred to the offspring. Thus, we speculate that dihydrogynocardin is catabolized to recycle nitrogen and glucose, and/or to produce fitness signals during courtship. Mature adults have a higher concentration of CNglcs than any other developmental stages due to increased de novo biosynthesis of linamarin and lotaustralin. Accordingly, all CYP405As are expressed in adults, whereas larvae mostly express CYP405A4. Our results shed light on the importance of CNglcs for Heliconius biology and their coevolution with Passiflora.
    Keywords Heliconius melpomene ; Passiflora caerulea ; adulthood ; adults ; amygdalin ; biosynthesis ; butterflies ; chemical composition ; coevolution ; courtship ; cyanides ; cytochrome P-450 ; diet ; eggs ; enzymes ; genes ; glucose ; glucosides ; hemolymph ; insect larvae ; leaves ; mimicry (behavior) ; nitrogen ; progeny ; prunasin ; pupae ; toxicity
    Language English
    Dates of publication 2020-01
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1483248-3
    ISSN 1879-0240 ; 0965-1748
    ISSN (online) 1879-0240
    ISSN 0965-1748
    DOI 10.1016/j.ibmb.2019.103259
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article ; Online: A novel terpene synthase controls differences in anti-aphrodisiac pheromone production between closely related Heliconius butterflies.

    Darragh, Kathy / Orteu, Anna / Black, Daniella / Byers, Kelsey J R P / Szczerbowski, Daiane / Warren, Ian A / Rastas, Pasi / Pinharanda, Ana / Davey, John W / Fernanda Garza, Sylvia / Abondano Almeida, Diana / Merrill, Richard M / McMillan, W Owen / Schulz, Stefan / Jiggins, Chris D

    PLoS biology

    2021  Volume 19, Issue 1, Page(s) e3001022

    Abstract: Plants and insects often use the same compounds for chemical communication, but not much is known about the genetics of convergent evolution of chemical signals. The terpene (E)-β-ocimene is a common component of floral scent and is also used by the ... ...

    Abstract Plants and insects often use the same compounds for chemical communication, but not much is known about the genetics of convergent evolution of chemical signals. The terpene (E)-β-ocimene is a common component of floral scent and is also used by the butterfly Heliconius melpomene as an anti-aphrodisiac pheromone. While the biosynthesis of terpenes has been described in plants and microorganisms, few terpene synthases (TPSs) have been identified in insects. Here, we study the recent divergence of 2 species, H. melpomene and Heliconius cydno, which differ in the presence of (E)-β-ocimene; combining linkage mapping, gene expression, and functional analyses, we identify 2 novel TPSs. Furthermore, we demonstrate that one, HmelOS, is able to synthesise (E)-β-ocimene in vitro. We find no evidence for TPS activity in HcydOS (HmelOS ortholog of H. cydno), suggesting that the loss of (E)-β-ocimene in this species is the result of coding, not regulatory, differences. The TPS enzymes we discovered are unrelated to previously described plant and insect TPSs, demonstrating that chemical convergence has independent evolutionary origins.
    MeSH term(s) Alkyl and Aryl Transferases/genetics ; Alkyl and Aryl Transferases/metabolism ; Animals ; Aphrodisiacs/antagonists & inhibitors ; Avoidance Learning/drug effects ; Butterflies/genetics ; Butterflies/metabolism ; Evolution, Molecular ; Female ; Genes, Insect ; Male ; Pheromones/metabolism ; Pheromones/pharmacology ; Phylogeny ; Sexual Behavior, Animal/drug effects ; Species Specificity
    Chemical Substances Aphrodisiacs ; Pheromones ; Alkyl and Aryl Transferases (EC 2.5.-) ; terpene synthase (EC 2.5.1.-)
    Language English
    Publishing date 2021-01-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2126776-5
    ISSN 1545-7885 ; 1544-9173
    ISSN (online) 1545-7885
    ISSN 1544-9173
    DOI 10.1371/journal.pbio.3001022
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: The dynamics of cyanide defences in the life cycle of an aposematic butterfly: Biosynthesis versus sequestration.

    Pinheiro de Castro, Érika C / Demirtas, Rojan / Orteu, Anna / Olsen, Carl Erik / Motawie, Mohammed Saddik / Zikan Cardoso, Márcio / Zagrobelny, Mika / Bak, Søren

    Insect biochemistry and molecular biology

    2019  Volume 116, Page(s) 103259

    Abstract: Heliconius butterflies are highly specialized in Passiflora plants, laying eggs and feeding as larvae only on them. Interestingly, both Heliconius butterflies and Passiflora plants contain cyanogenic glucosides (CNglcs). While feeding on specific ... ...

    Abstract Heliconius butterflies are highly specialized in Passiflora plants, laying eggs and feeding as larvae only on them. Interestingly, both Heliconius butterflies and Passiflora plants contain cyanogenic glucosides (CNglcs). While feeding on specific Passiflora species, Heliconius melpomene larvae are able to sequester simple cyclopentenyl CNglcs, the most common CNglcs in this plant genus. Yet, aromatic, aliphatic, and modified CNglcs have been reported in Passiflora species and they were never tested for sequestration by heliconiine larvae. As other cyanogenic lepidopterans, H. melpomene also biosynthesize the aliphatic CNglcs linamarin and lotaustralin, and their toxicity does not rely exclusively on sequestration. Although the genes encoding the enzymes in the CNglc biosynthesis have not yet been biochemically characterized in butterflies, the cytochromes P450 CYP405A4, CYP405A5, CYP405A6 and CYP332A1 have been hypothesized to be involved in this pathway in H. melpomene. In this study, we determine how the CNglc composition and expression of the putative P450s involved in the biosynthesis of these compounds vary at different developmental stages of Heliconius butterflies. We also establish which kind of CNglcs H. melpomene larvae can sequester from Passiflora. By analysing the chemical composition of the haemolymph from larvae fed with different Passiflora diets, we show that H. melpomene is able to sequestered prunasin, an aromatic CNglcs, from P. platyloba. They are also able to sequester amygdalin, gynocardin, [C
    MeSH term(s) Animals ; Biological Coevolution ; Butterflies/chemistry ; Butterflies/enzymology ; Butterflies/growth & development ; Butterflies/metabolism ; Cytochrome P-450 Enzyme System/genetics ; Cytochrome P-450 Enzyme System/metabolism ; Gene Expression Profiling ; Glucosides/metabolism ; Glycosides/biosynthesis ; Glycosides/metabolism ; Herbivory ; Larva/enzymology ; Larva/metabolism ; Life Cycle Stages/physiology ; Nitriles/metabolism ; Passiflora/chemistry
    Chemical Substances Glucosides ; Glycosides ; Nitriles ; Cytochrome P-450 Enzyme System (9035-51-2) ; linamarin (H3V9RP3WLO) ; lotaustralin (P588137A94)
    Language English
    Publishing date 2019-11-04
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1483248-3
    ISSN 1879-0240 ; 0965-1748
    ISSN (online) 1879-0240
    ISSN 0965-1748
    DOI 10.1016/j.ibmb.2019.103259
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top