Reproductive compatibility among sympatric and allopatric isofemale lines of Trichogramma pretiosum Riley, 1879

Author(s)

Coelho Jr, Aloisio ; Vieira, Jaci Mendes ; Rugman-Jones, Paul F. ; Querino, Ranyse Barbosa ; Moral, Rafael de Andrade ; Parra, Jose Roberto Postali ; Stouthamer, Richard

• Document type: Journal article
• Source: BULLETIN OF ENTOMOLOGICAL RESEARCH; v. N/A, p. 8-pg., 2023-06-06.

Abstract

The present study evaluated the reproductive compatibility of Trichogramma pretiosum Riley, 1879, through an integrative approach using biological data and morphometry of three isofemale lines (isolines) collected from two geographical areas. These isolines differed in sequences of mitochondrial DNA and reproductive performance in the laboratory. The wasps used to initiate the isolines were collected in different environments: two lines from a Mediterranean climate in Irvine, California, USA, and one line from a tropical climate in Piracicaba, Sao Paulo, Brazil. Reproductive compatibility was studied by evaluating the sex ratio and number of adult offspring produced of all mating combinations between adults from these isolines. Morphometry was studied by measuring 26 taxonomically useful characters, followed by a multivariate analysis. For the allopatric matings among Brazilian and North American isolines, a low level of crossing incompatibility was recorded, in only one direction of the crosses; whereas the sympatric North American isolines were incompatible in both directions. Multivariate analysis of the morphometric data indicated no distinct groups, suggesting that despite the genetic and biological differences, the isofemale lines are morphologically similar. (AU)

• FAPESP's process: 11/17397-5 - GENETIC VARIABILITY OF Trichogramma pretiosum RILEY, 1879, IN ITS ROLE AS A BIOLOGICAL CONTROL AGENT
• Grantee: Aloisio Coelho Junior
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/02317-5 - Center for Excellence in Biological Control
• Grantee: José Roberto Postali Parra
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 14/50871-0 - INCT 2014: National Institute of Science and Technology of Semiochemicals in Agriculture
• Grantee: José Roberto Postali Parra
• Support Opportunities: Research Projects - Thematic Grants