scholarly journals P‐elements strengthen reproductive isolation within the Drosophila simulans species complex

Evolution ◽  
2021 ◽  
Author(s):  
Antonio Serrato‐Capuchina ◽  
Emmanuel R. R. D'Agostino ◽  
David Peede ◽  
Baylee Roy ◽  
Kristin Isbell ◽  
...  
Keyword(s):  
Reproductive Isolation ◽  
Species Complex ◽  
Drosophila Simulans ◽  
P Elements

scholarly journals P-elements strengthen reproductive isolation within the Drosophila simulans species complex

2020 ◽  
Author(s):  
Antonio Serrato-Capuchina ◽  
Emmanuel R. R. D’Agostino ◽  
David Peede ◽  
Baylee Roy ◽  
Kristin Isbell ◽  
...  
Keyword(s):  
Transposable Elements ◽  
Reproductive Isolation ◽  
Species Complex ◽  
Drosophila Simulans ◽  
Sister Species ◽  
Species Boundaries ◽  
Interspecific Crosses ◽  
Female Fecundity ◽  
Pure Species ◽  
P Elements

ABSTRACTDetermining mechanisms that underlie reproductive isolation is key to understanding how species boundaries are maintained in nature. Transposable elements (TEs) are ubiquitous across eukaryotic genomes. However, the role of TEs in modulating the strength of reproductive isolation between species is poorly understood. Several species of Drosophila have been found to harbor P-elements (PEs), yet only D. simulans is known to be polymorphic for their presence in wild populations. PEs can cause reproductive isolation between PE-containing (P) and PE-lacking (M) lineages of the same species. However, it is unclear whether they also contribute to the magnitude of reproductive isolation between species. Here, we use the simulans species complex to assess whether differences in PE status between D. simulans and its sister species, which do not harbor PEs, contribute to multiple barriers to gene flow between species. We show that crosses involving a P D. simulans father and an M mother from a sister species exhibit lower F1 female fecundity than crosses involving an M D. simulans father and an M sister-species mother. Our results suggest that the presence of PEs in a species can strengthen isolation from its sister species, providing evidence that transposable elements can play a role in reproductive isolation and facilitate the process of speciation.IMPACT SUMMARYTransposable elements (TEs) are repetitive genetic units found across the tree of life. They play a fundamental role on the evolution of each species’ genome. TEs have been implicated in diversification, extinction, and the origin of novelty. However, their potential role in contributing to the maintenance of species boundaries remains largely understudied. Using whole genome sequences, we compared the relative content of TEs across the three species of the Drosophila simulans complex. We find that the presence of one TE, P-element, in D. simulans, and its absence in the sister taxa, differentiates the three species. P-elements (PEs) cause a suite of fitness defects in Drosophila pure-species individuals if their father has PEs but their mother does not, a phenomenon known as hybrid dysgenesis (HD). We thus studied the possibility that PEs enhance isolation between recently-diverged species. In particular, we studied whether the progeny from interspecific crosses were more prone to suffer from HD than pure species. We found that the presence of paternal PEs reduces hybrid female fecundity, mirroring observations of HD described within species. The effect of PEs is stronger in the interspecific hybrids than in pure species. Our results suggest that PEs can strengthen reproductive isolation in well-formed sister species that still hybridize in nature and pose the question of whether other TEs are involved in the formation of species or in their persistence over time.

CRYPTIC REPRODUCTIVE ISOLATION IN THE DROSOPHILA SIMULANS SPECIES COMPLEX

Evolution ◽  
2001 ◽  
Vol 55 (1) ◽  
pp. 81 ◽  
Author(s):  
Catherine S. C. Price ◽  
Christine H. Kim ◽  
Carina J. Gronlund ◽  
Jerry A. Coyne
Keyword(s):  
Reproductive Isolation ◽  
Species Complex ◽  
Drosophila Simulans

scholarly journals CRYPTIC REPRODUCTIVE ISOLATION IN THE DROSOPHILA SIMULANS SPECIES COMPLEX

Evolution ◽  
2001 ◽  
Vol 55 (1) ◽  
pp. 81-92 ◽  
Author(s):  
Catherine S. C. Price ◽  
Christine H. Kim ◽  
Carina J. Gronlund ◽  
Jerry A. Coyne
Keyword(s):  
Reproductive Isolation ◽  
Species Complex ◽  
Drosophila Simulans

scholarly journals Reproductive isolation between different forms of Lutzomyia longipalpis (Lutz & Neiva), (Diptera: Psychodidae), the vector of Leishmania donovani chagasi Cunha & Chagas and its significance to kala-azar distribution in South America

1983 ◽  
Vol 78 (3) ◽  
pp. 269-280 ◽  
Author(s):  
Richard D. Ward ◽  
Armando L. Ribeiro ◽  
Paul D. Ready ◽  
Angela Murtagh
Keyword(s):  
South America ◽  
Reproductive Isolation ◽  
Species Complex ◽  
Leishmania Donovani ◽  
Epidemiological Studies ◽  
The Other ◽  
Lutzomyia Longipalpis ◽  
Single Pair ◽  
Kala Azar

The males of the sandfly Lutzomyia longipalpis occur in two forms, one which bears a single pair of pale spots on tergite 4 and another in which an additional pair of spots characterizes tergite 3. In crosses between laboratory reared stocks of the two forms originating from allopatric and sympatric sites in Brazil nearly all males of one form fail to inseminate females of the other. In addition, insemination failure between some allopatric populaytions of Lu. longipalpis with similar tergal spot patterns is recorded, indicating the existence of additional forms in an apparent species complex. The possibility that Lu. longipalpis sensu latu represents more than a single taxon is discussed and the relevance of these findings to future epidemiological studies on kala-azar is considered.

scholarly journals EVOLUTION OF REPRODUCTIVE ISOLATION WITHIN A PARASITIC FUNGAL SPECIES COMPLEX

Evolution ◽  
2007 ◽  
Vol 61 (7) ◽  
pp. 1781-1787 ◽  
Author(s):  
Mickael Le Gac ◽  
Michael E. Hood ◽  
Tatiana Giraud
Keyword(s):  
Reproductive Isolation ◽  
Species Complex ◽  
Fungal Species

scholarly journals VIBRATIONAL COMMUNICATION AND REPRODUCTIVE ISOLATION IN THE ENCHENOPA BINOTATA SPECIES COMPLEX OF TREEHOPPERS (HEMIPTERA: MEMBRACIDAE)

Evolution ◽  
2004 ◽  
Vol 58 (3) ◽  
pp. 571-578 ◽  
Author(s):  
Rafael L. Rodríguez ◽  
Laura E. Sullivan ◽  
Reginald B. Cocroft
Keyword(s):  
Reproductive Isolation ◽  
Species Complex ◽  
Vibrational Communication
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