Range Wide Phylogeography of Dactylopius coccus (Hemiptera: Dactylopiidae)

Alex Van Dam, Liberato Portillo Martinez, Antonio Jeri Chavez, Bernie P. May

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The process of domestication and geographic origins of the cochineal insect (Dactylopius coccus Costa) has remained largely unstudied despite its importance as a global food colorant commodity. Ecological evidence supports Oaxaca Mexico as the geographic origin of this species. Other recent genetic studies have been inconclusive. Here, we fill in the remaining gaps in the ecological record and look for corroboration from mtDNA markers as to the origin of this species. We use three mtDNA genes (CO1, tRNA-Leucine, and CO2) spanning 1294 bp, along with climate niche modeling of Holocene and Pleistocene cochineal distributions. We find the center of origin of D. coccus to be Oaxaca Mexico based on mtDNA data and climate niche modeling. Further meta-genomic data are needed to rule out selective sweeps from past and present endosymbionts for these results to be definitive.
    Original languageEnglish
    JournalAnnals of the Entomological Society of America
    Volume108
    Issue number3
    Pages (from-to)299-310
    Number of pages12
    ISSN0013-8746
    DOIs
    Publication statusPublished - 2015

    Keywords

    • Dactylopius coccus
    • Geographic origin
    • Cochineal
    • Domestic origin

    Cite this