נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Genetic diversity and host alternation of the egg parasitoid Ooencyrtus pityocampae between the pine processionary moth and the caper bug
Year:
2015
Source of publication :
PLoS ONE
Authors :
גנאים, מוראד
;
.
מנדל, צבי
;
.
פרוטסוב, אלכס
;
.
Volume :
10
Co-Authors:
Samra, S., Department of Entomology, Volcani Center, Bet Dagan, Israel, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, Israel
Ghanim, M., Department of Entomology, Volcani Center, Bet Dagan, Israel
Protasov, A., Department of Entomology, Volcani Center, Bet Dagan, Israel
Branco, M., Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Technical University of Lisbon, Lisbon, Portugal
Mendel, Z., Department of Entomology, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
To page:
(
Total pages:
1
)
Abstract:
The increased use of molecular tools for species identification in recent decades revealed that each of many apparently generalist parasitoids are actually a complex of morphologically similar congeners, most of which have a rather narrow host range. Ooencyrtus pityocampae (OP), an important egg parasitoid of the pine processionary moth (PPM), is considered a generalist parasitoid. OP emerges from PPM eggs after winter hibernation, mainly in spring and early summer, long before the eggs of the next PPM generation occurs. The occurrence of OP in eggs of the variegated caper bug (CB) Stenozygum coloratum in spring and summer suggests that OP populations alternate seasonally between PPM and CB. However, the identity of OP population on CB eggs seemed uncertain; unlike OP-PPM populations, the former displayed apparently high male/female ratios and lack of attraction to the PPM sex pheromone. We studied the molecular identities of the two populations since the morphological identification of the genus Ooencyrtus, and OP in particular, is difficult. Sequencing of COI and ITS2 DNA fragments and AFLP analysis of individuals from both hosts revealed no apparent differences between the OP-PPM and the OP-CB populations for both the Israeli and the Turkish OPs, which therefore supported the possibility of host alternation. Sequencing data extended our knowledge of the genetic structure of OP populations in the Mediterranean area, and revealed clear separation between East and West Mediterranean populations. The overall level of genetic diversity was rather small, with the Israeli population much less diverse than all others; possible explanations for this finding are discussed. The findings support the possibility of utilizing the CB and other hosts for enhancing biological control of the PPM. © 2015 Samra et al.
Note:
Related Files :
adult
Gene
gene sequence
host alternation
Israel
Ooencyrtus
Ooencyrtus pityocampae
Seasonal Variation
עוד תגיות
תוכן קשור
More details
DOI :
10.1371/journal.pone.0122788
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25710
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:17
You may also be interested in
Scientific Publication
Genetic diversity and host alternation of the egg parasitoid Ooencyrtus pityocampae between the pine processionary moth and the caper bug
10
Samra, S., Department of Entomology, Volcani Center, Bet Dagan, Israel, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, Israel
Ghanim, M., Department of Entomology, Volcani Center, Bet Dagan, Israel
Protasov, A., Department of Entomology, Volcani Center, Bet Dagan, Israel
Branco, M., Centro de Estudos Florestais (CEF), Instituto Superior de Agronomia, Technical University of Lisbon, Lisbon, Portugal
Mendel, Z., Department of Entomology, Volcani Center, Bet Dagan, Israel
Genetic diversity and host alternation of the egg parasitoid Ooencyrtus pityocampae between the pine processionary moth and the caper bug
The increased use of molecular tools for species identification in recent decades revealed that each of many apparently generalist parasitoids are actually a complex of morphologically similar congeners, most of which have a rather narrow host range. Ooencyrtus pityocampae (OP), an important egg parasitoid of the pine processionary moth (PPM), is considered a generalist parasitoid. OP emerges from PPM eggs after winter hibernation, mainly in spring and early summer, long before the eggs of the next PPM generation occurs. The occurrence of OP in eggs of the variegated caper bug (CB) Stenozygum coloratum in spring and summer suggests that OP populations alternate seasonally between PPM and CB. However, the identity of OP population on CB eggs seemed uncertain; unlike OP-PPM populations, the former displayed apparently high male/female ratios and lack of attraction to the PPM sex pheromone. We studied the molecular identities of the two populations since the morphological identification of the genus Ooencyrtus, and OP in particular, is difficult. Sequencing of COI and ITS2 DNA fragments and AFLP analysis of individuals from both hosts revealed no apparent differences between the OP-PPM and the OP-CB populations for both the Israeli and the Turkish OPs, which therefore supported the possibility of host alternation. Sequencing data extended our knowledge of the genetic structure of OP populations in the Mediterranean area, and revealed clear separation between East and West Mediterranean populations. The overall level of genetic diversity was rather small, with the Israeli population much less diverse than all others; possible explanations for this finding are discussed. The findings support the possibility of utilizing the CB and other hosts for enhancing biological control of the PPM. © 2015 Samra et al.
Scientific Publication
You may also be interested in