Population Genetic Structure of Meloidogyne javanica Recovered from Different Regions of Iran

Abbas Mokaram Hesar, Mahsa Rostami, Reza Ghaderi, Younes Rezaee Danesh (), Arshad Jalal, Carlos Eduardo da Silva Oliveira and Marcelo Carvalho Minhoto Teixeira Filho ()
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Abbas Mokaram Hesar: Department of Plant Protection, Faculty of Agriculture, Afagh Higher Education Institute, Urmia 5756151818, Iran
Mahsa Rostami: Department of Plant Protection, School of Agriculture, Shiraz University, Shiraz 7194684334, Iran
Reza Ghaderi: Department of Plant Protection, School of Agriculture, Shiraz University, Shiraz 7194684334, Iran
Younes Rezaee Danesh: Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia 5756151818, Iran
Arshad Jalal: Department of Plant Health, Rural Engineering, and Soils, São Paulo State University (UNESP), Ilha Solteira 01049-010, Brazil
Carlos Eduardo da Silva Oliveira: Department of Plant Health, Rural Engineering, and Soils, São Paulo State University (UNESP), Ilha Solteira 01049-010, Brazil
Marcelo Carvalho Minhoto Teixeira Filho: Department of Plant Health, Rural Engineering, and Soils, São Paulo State University (UNESP), Ilha Solteira 01049-010, Brazil

Agriculture, 2022, vol. 12, issue 9, 1-14

Abstract: In a survey of root-knot nematodes in Iran, twenty-nine populations were collected from eleven provinces. All populations were identified as Meloidogyne javanica based on morphological and morphometric characteristics of females, males, J2s, and perineal patterns. Sequence Characterized Amplified Region (SCAR) primers confirmed the morphological studies, and all these populations produced a specific band in 670 bp using Fjav and Rjav primers. Genetic structure analyses using the combination of RAPD and ISSR markers revealed four different groups, which was in agreement with UPGMA cluster analyses. These four groups were related to four different geographic regions with a high geographic distance. The total estimated genetic diversity was 8%, which was a low value. Values of FST and Nm were 0.628 and 0.148, indicating that populations of these four regions were separated from each other; however, some gene flow between them could be attributed to human activities. Mantel test also revealed a negative correlation between genetic diversity and geographic distance.

Keywords: root-knot nematode; nematode population; nematode identification; genetic structure; nematode genetic diversity (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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