Abstract
Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico. Invasive O. perseae populations became established throughout the commercial avocado system in California (USA) during the early 1990s, but the putative geographic origin(s) of the California O. perseae populations has not been investigated. To address this shortcoming, a series of population genetic analyses for O. perseae populations representative of a broad geographic sample range was conducted. This study identified a single mitochondrial cytochrome c oxidase subunit I (COI) haplotype match between O. perseae populations collected in California with those from 4 municipalities in Michoacán, Mexico, part of the presumptive native range of this pest. Interestingly, this haplotype also was collected from avocados at 2 locations in Baja California, Mexico, and it was identified from a representative sample from Israel where O. perseae is an invasive avocado pest. Molecular data confirm the likely Mexican origin of invasive O. perseae populations in California, and may help delimit the geographic area to be searched for coevolved natural enemies of O. perseae that could be introduced into California as part of a future classical biological control program targeting this pest. Moreover, molecular results uncovered significant and concordant genetic divergence in both mitochondrial (COI) and ribosomal DNA markers, i.e.,internal transcribed spacer 2 (ITS2) and a section of the 28S gene region, pointing to the potential occurrence of a cryptic species complex within O. perseae. The implications of these findings on future taxonomic and molecular work for O. perseae are discussed.
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Claims 6
Claim · model-written summary
A single COI haplotype matched O. perseae populations from California and from four municipalities in Michoacán, Mexico.
- Taxon
- avocados
Persea americanae0 - Interactor
- O. perseaeOligonychus perseaee1pest
- Outcome
- haplotype matche1
- Setting
- Michoacán, Mexicoe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico”
e1“This study identified a single mitochondrial cytochrome c oxidase subunit I (COI) haplotype match between O. perseae populations collected in California with those from 4 municipalities in Michoacán, Mexico”
Claim · model-written summary
The matching COI haplotype was also collected from avocados in Baja California, Mexico.
- Taxon
- avocadosPersea americanae0
- Outcome
- collectede2
- Setting
- Baja California, Mexicoe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico”
e2“this haplotype also was collected from avocados at 2 locations in Baja California, Mexico”
Claim · model-written summary
The matching COI haplotype was identified in a sample from Israel, where O. perseae is an invasive avocado pest.
- Taxon
- avocadoPersea americanae3
- Interactor
- O. perseaeOligonychus perseaee3pest
- Outcome
- identifiede3
- Setting
- Israele3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico”
e3“it was identified from a representative sample from Israel where O. perseae is an invasive avocado pest”
Claim · model-written summary
Molecular data confirm the likely Mexican origin of invasive O. perseae populations in California.
- Taxon
- avocadosPersea americanae0
- Interactor
- O. perseaeOligonychus perseaee4pest
- Outcome
- likely Mexican origine4
- Setting
- Californiae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico”
e4“Molecular data confirm the likely Mexican origin of invasive O. perseae populations in California”
Claim · model-written summary
Genetic divergence in mitochondrial COI and ribosomal DNA markers of O. perseae was significant and concordant.
- Taxon
- avocadosPersea americanae0
- Outcome
- genetic divergencee5
- Qualifier
- both mitochondrial (COI) and ribosomal DNA markerse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico”
e5“molecular results uncovered significant and concordant genetic divergence in both mitochondrial (COI) and ribosomal DNA markers”
Claim · model-written summary
O. perseae may comprise a cryptic species complex.
- Taxon
- avocadosPersea americanae0
- Interactor
- O. perseaeOligonychus perseaee6pest
- Outcome
- cryptic species complexe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important foliar pest of avocados from Mexico”
e6“pointing to the potential occurrence of a cryptic species complex within O. perseae”