Open AccessGenetic Diversity in Populations of Mediterranean Fruit Flies in North-Eastern Brazil
Author(s) -
Jéssica S. Cardoso,
Sâmela Silva Mendes,
Ana Maria Waldschmidt,
Maria Aparecida Castellani,
Iara Sordi JoachimBravo,
Juvenal C. Silva
Publication year - 2022
Publication title -
journal of agricultural science
Language(s) - English
Resource type - Journals
eISSN - 1916-9760
pISSN - 1916-9752
DOI - 10.5539/jas.v14n2p70
Subject(s) - ceratitis capitata , biology , capitata , genetic diversity , gene flow , genetic structure , analysis of molecular variance , population , genetic variation , evolutionary biology , population genetics , mediterranean climate , zoology , ecology , genetics , tephritidae , gene , botany , pest analysis , demography , sociology , brassica oleracea
This study aimed at determining the population genetic structure of Mediterranean fruit flies (Ceratitis capitata) in North-eastern Brazil, so as to improve our understanding of the viability of the inter-simple sequences repeat (ISSR) markers in Brazilian populations, along with inferences on population genetic composition which can be used in management programs. For this, ISSR markers were used in groups collected from four municipalities in this region. Primers were polymorphic, revealing moderate expected heterozigosity, with 80% of the variation occurring within populations and moderate structure. Bayesian analysis revealed K = 3, consistent with pairwise FST and indicating low structure between Barra do Choça and Planalto, and moderate structure between Caraíbas and Planalto. Data indicated high diversity, suggesting two interpretations: the analyzed populations arose from a single population and are now under structuring processes, or populations had different origins, but are currently connected by gene flow. Thus, ISSR primers were affective in obtaining information about genetic structure of C. capitata populations in North-eastern Brazil, as evidenced by high polymorphism and separation or grouping of populations according to their allelic compositions. Furthermore, this paper provides useful information for understanding the genetic diversity, population structure and gene flow of C. capitata populations in this region and developing regional strategies for the control and management of the species.