Pheromone emission patterns and courtship sequences across distinct populations withinAnastrepha fraterculus(Diptera-Tephritidae) cryptic species complex
| Autor: | A. K. P. Roriz, Iara Sordi Joachim-Bravo, M. Teresa Vera, Carlos Cáceres, Hilton Ferreira Japyassú |
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| Rok vydání: | 2018 |
| Předmět: |
Male
0106 biological sciences Species complex Genetic Speciation media_common.quotation_subject Population Zoology 010603 evolutionary biology 01 natural sciences Pheromones Courtship Sexual Behavior Animal Species Specificity Tephritidae Animals Temporal isolation education media_common education.field_of_study biology General Medicine South America biology.organism_classification Circadian Rhythm 010602 entomology Speciation Insect Science Sexual selection Pheromone Agronomy and Crop Science |
| Zdroj: | Bulletin of Entomological Research. 109:408-417 |
| ISSN: | 1475-2670 0007-4853 |
| DOI: | 10.1017/s0007485318000846 |
| Popis: | Sexual behavioural isolation can result from sexual selection and represents a relevant factor associated with the speciation process. We analysed the pheromone emission pattern and the courtship of males of five different populations of theAnastrepha fraterculuscryptic complex: Brazil (Vacaria, Tucumán and Piracicaba), Colombia and Peru. The time of pheromone emission was recorded in each population every 30 min during the day. The behavioural sequences of courting were video recorded and analysed using EthoSeq software. Males from different populations have showed different period of pheromone emission – Vacaria, Piracicaba and Tucumán executed calling only during the morning, Colombia only in the afternoon and Peru during both periods. The general frequencies of the courtship units of the males were distinct among the populations. Three groups were formed in the classification from the function of 14 behavioural routines: Vacaria, Piracicaba and Tucumán formed a single group (Brazil-1), while Colombia and Peru formed two distinct groups. In the probabilistic trees generated, the behavioural units that most contributed to the occurrence of copulation were distinct among the three groups formed: Brazil-1 (Contact,AlignmentandArrowhead-1); Colombia (Flying,Mobile,ContactandAlignment); Peru (Flying,Arrowhead-1andCalling). Our results indicated differences in sexual behaviour that may explain the behavioural isolation found between the distinct groups in addition with the temporal isolation found between the Brazil-1 and Colombia populations. The evolutionary implications for theA. fraterculuscryptic species complex are discussed. |
| Databáze: | OpenAIRE |
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