Restricted Gene Flow among Lineages of Thrips tabaci Supports Genetic Divergence Among Cryptic Species Groups

Knowledge of the relative influence of population- versus species-level genetic variation is important to understand patterns of phenotypic variation and ecological relationships that exist among and within morphologically indistinguishable cryptic species and subspecies. In the case of cryptic spec...

Full description

Saved in:
Bibliographic Details
Published in:PloS one 2016-09, Vol.11 (9), p.e0163882-e0163882
Main Authors: Jacobson, Alana L, Nault, Brian A, Vargo, Edward L, Kennedy, George G
Format: Article
Language:English
Subjects:
Agricultural production
Bemisia tabaci
Biology and Life Sciences
Cryptic species
Divergence
Experiments
Females
Gene flow
Gene sequencing
Genetic aspects
Genetic diversity
Genetic markers
Genetic structure
Hybridization
Laboratories
Males
Microsatellites
Mitochondria
People and places
Pests
Phenotypic variations
Phylogenetics
Physical Sciences
Population
Population genetics
Population studies
Reproductive isolation
Research and Analysis Methods
Species
Studies
Supports
Thripidae
Thrips
Thrips tabaci
Thysanoptera
Trends
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Knowledge of the relative influence of population- versus species-level genetic variation is important to understand patterns of phenotypic variation and ecological relationships that exist among and within morphologically indistinguishable cryptic species and subspecies. In the case of cryptic species groups that are pests, such knowledge is also essential for devising effective population management strategies. The globally important crop pest Thrips tabaci is a taxonomically difficult group of putatively cryptic species. This study examines population genetic structure of T. tabaci and reproductive isolation among lineages of this species complex using microsatellite markers and mitochondrial COI sequences. Overall, genetic structure supports T. tabaci as a cryptic species complex, although limited interbreeding occurs between different clonal groups from the same lineage as well as between individuals from different lineages. These results also provide evidence that thelytoky and arrhenotoky are not fixed phenotypes among members of different T. tabaci lineages that have been generally associated with either reproductive mode. Possible biological and ecological factors contributing to these observations are discussed.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0163882