The Genetics of Mating Song Evolution Underlying Rapid Speciation: Linking Quantitative Variation to Candidate Genes for Behavioral Isolation

By Xu, Mingzi; Shaw, Kerry L. | Genetics, March 2019 | Go to article overview

The Genetics of Mating Song Evolution Underlying Rapid Speciation: Linking Quantitative Variation to Candidate Genes for Behavioral Isolation


Xu, Mingzi, Shaw, Kerry L., Genetics


SPECIATION can arise from divergence in reproductive phenotypes (Coyne and Orr 2004). Divergent mating behaviors can result in reproductive barriers by causing assortative mating within incipient species. It is well documented that mating behaviors and morphologies diverge early in the speciation process, suggesting an explanation for why prezygotic barriers evolve sooner than postzygotic barriers in the origin of species (e.g., Mendelson 2003; SánchezGuillén et al. 2014). Moreover, some of the most rapid speciation rates known, such as those in Lake Victoria cichlid fish (Seehausen et al. 2008), Hawaiian Laupala crickets (Mendelson and Shaw 2005), Baltic Sea European flounders (Momigliano et al. 2017), and a putative case in Galapagos finches (Lamichhaney et al. 2018), occur when species diverge in mating behaviors and associated structures. Thus, studying the genetics and evolution ofbehavioral barriers can contribute to an emerging general principle of speciation.

Because evolution is a genetic process, characterizing the genetic architecture and identifying genes involved in behavioral barriers is crucial to understanding targets of selection and establishing causal links among genes, pathways, and mating behaviors in the early stages of speciation. In animals, however, courtship is often complex and multimodal, involving many traits (e.g., Greenspan and Ferveur 2000; Rundus et al. 2010; Starnberger et al. 2014; Ullrich et al. 2016; Mowles et al. 2017). Accordingly, it can be difficult to isolate specific behaviors for genetic analysis. Perhaps because of these complexities, we have a limited understanding of the evolutionary genetics of mating behaviors that contribute to reproductive barriers despite its general importance in speciation.

While some progress has been made in understanding the genetic basis of natural variation in visual and olfactory signals, such as cuticular hydrocarbons, sex pheromones, and body coloration [e.g., Gleason et al. 2005, 2009; Kronforst et al. 2006; Sæ ther et al. 2007; Lassance et al. 2010, 2013; Merrill et al 2011; Niehuis et al. 2011; Bay et al. 2017; also reviewed by Groot et al. (2016)], many organisms use acoustic signals involving rhythmic neuromuscular behaviors for which we still have a very limited genetic understanding. Even in Drosophila, where acoustic behavior is expressed widely in courtship, we lack a gene-based understanding of natural variation (but see Gleason and Ritchie 2004; Ding et al 2016). Rhythmic, temporal patterns of such mating "songs" are often species-specific and known components of reproductive barriers among species of insects, fish and amphibians (Gerhardt and Huber 2002; Hartbauer and Römer 2016; Barkan et al. 2017; Smith et al. 2018). The rhythmic elements of song are a result of regularly patterned motor output, products of localized, neural circuits called central pattern generators (CPGs; Chagnaud and Bass 2014; Katz 2016; Schöneich and Hedwig 2017). Compared with other rhythmic mating behaviors such as courtship dance, song rhythms are easy to isolate and measure.

To date, genetic studies of song rhythm variation have revealed a polygenic genetic architecture in insects, including fruit flies, lacewings, crickets, grasshoppers, and moths (Shaw 1996; Williams et al. 2001; Henry et al. 2002; Gleason and Ritchie 2004; Saldamando et al. 2005; Shaw et al. 2007; Ellison et al. 2011; Limousin et al. 2012). However, the causal genes underlying natural variation remain elusive in most cases. Eleven candidate genes that regulate interpulse interval in Drosophila melanogaster, including ion channel genes, transcription factors, and transcription/translation regulators, have been identified through experimentally generated mutations [reviewed by Gleason (2005), also see Turner etal. (2013) and Fedotov etal. (2014, 2018)]. These discoveries offer insight into the types of genes capable of modulating song rhythmicity in naturally occurring systems and thus are reasonable candidate genes for interspecific variation in other singing insects. …

The rest of this article is only available to active members of Questia

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Note: primary sources have slightly different requirements for citation. Please see these guidelines for more information.

Cited article

The Genetics of Mating Song Evolution Underlying Rapid Speciation: Linking Quantitative Variation to Candidate Genes for Behavioral Isolation
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
Items saved from this article
  • Highlights & Notes
  • Citations
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Search by... Author
    Show... All Results Primary Sources Peer-reviewed

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.