Solving the 250-year- old mystery of the origin and global spread of the German cockroach, Blattella germanica
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00587128" target="_blank" >RIV/60077344:_____/24:00587128 - isvavai.cz</a>
Alternative codes found
RIV/00023272:_____/24:10136555 RIV/00216208:11310/24:10483145
Result on the web
<a href="https://www.pnas.org/doi/reader/10.1073/pnas.2401185121" target="_blank" >https://www.pnas.org/doi/reader/10.1073/pnas.2401185121</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1073/pnas.2401185121" target="_blank" >10.1073/pnas.2401185121</a>
Alternative languages
Result language
angličtina
Original language name
Solving the 250-year- old mystery of the origin and global spread of the German cockroach, Blattella germanica
Original language description
The origin of the German cockroach, Blattella germanica, is enigmatic, in part because it is ubiquitous worldwide in human-built structures but absent from any natural habitats. The first historical records of this species are from ca. 250 years ago (ya) from central Europe (hence its name). However, recent research suggests that the center of diversity of the genus is Asian, where its closest relatives are found. To solve this paradox, we sampled genome-wide markers of 281 cockroaches from 17 countries across six continents. We confirm that B. germanica evolved from the Asian cockroach Blattella asahinai approximately 2,100 ya, probably by adapting to human settlements in India or Myanmar. Our genomic analyses reconstructed two primary global spread routes, one older, westward route to the Middle East coinciding with various Islamic dynasties (~1,200 ya), and another younger eastward route coinciding with the European colonial period (~390 ya). While Europe was not central to the early domestication and spread of the German cockroach, European advances in long-distance transportation and temperature-controlled housing were likely important for the more recent global spread, increasing chances of successful dispersal to and establishment in new regions. The global genetic structure of German cockroaches further supports our model, as it generally aligns with geopolitical boundaries, suggesting regional bridgehead populations established following the advent of international commerce.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10616 - Entomology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of the National Academy of Sciences of the United States of America
ISSN
0027-8424
e-ISSN
1091-6490
Volume of the periodical
121
Issue of the periodical within the volume
22
Country of publishing house
US - UNITED STATES
Number of pages
3
Pages from-to
e2401185121
UT code for WoS article
001237741800012
EID of the result in the Scopus database
2-s2.0-85193688222