Temporal variation in sex allocation in the mealybug Planococcus citri: adaptation, constraint, or both?
نویسندگان
چکیده
منابع مشابه
Sex pheromone and analogs of the citrus mealybug, Planococcus citri: synthesis and biological activity
The citrus mealybug, is a cosmopolitan pest and affects many crops. The female sex pheromone has been identified by Bierl-Leonhardt et al., in 1981 as (+)-(1R)-cis-2,2-dimethyl-3isopropenylcyclobutanemethanol acetate 1. Several groups including our team have synthesized the pheromone. A number of analogs have also been prepared in order to study the structure-activity relationship. We present h...
متن کاملMolecular Evidence of Polyandry in the Citrus Mealybug, Planococcus citri (Hemiptera: Pseudococcidae)
The occurrence of polyandry in Planococcuscitri, presumed by earlier observations of mating behavior, was confirmed using microsatellite genotyping of pools of over 400 eggs resulting from controlled crosses of one female with two males. The genetic contribution of both mated males was confirmed in 13 out of 43 crosses. In three crosses it was possible to determine that only the first male fert...
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The citrus mealybug, Planococcus citri, is a highly destructive pest of citrus, occurring only in the aerial parts of plants. Humidity will be one of the key factors to consider when using entomopathogenic nematodes (EPN) as biological control agents. Different adjuvants can be added to suspensions of EPNs, to improve control as a foliar application. An aqueous suspension containing Heterorhabd...
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The mealybug chromosome cycle is one of the most dramatic examples of genomic imprinting known. In embryos that are to become male the entire paternal chromosome set becomes heterochromatic and inactive at the blastoderm stage, while the maternal set remains active and euchromatic. HP1 is a protein from Drosophila melanogaster, which binds preferentially to heterochromatin on polytene chromosom...
متن کاملSex-specific organisation of middle repetitive DNA sequences in the mealybug Planococcus lilacinus.
Differential organisation of homologous chromosomes is related to both sex determination and genomic imprinting in coccid insects, the mealybugs. We report here the identification of two middle repetitive sequences that are differentially organised between the two sexes and also within the same diploid nucleus. These two sequences form a part of the male-specific nuclease-resistant chromatin (N...
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ژورنال
عنوان ژورنال: Evolutionary Ecology
سال: 2012
ISSN: 0269-7653,1573-8477
DOI: 10.1007/s10682-012-9561-7