Evolution of a novel function: nutritive milk in the viviparous cockroach, Diploptera punctata

@article{Williford2004EvolutionOA,
  title={Evolution of a novel function: nutritive milk in the viviparous cockroach, Diploptera punctata},
  author={A. Williford and B. Stay and D. Bhattacharya},
  journal={Evolution \& Development},
  year={2004},
  volume={6}
}
Summary Cockroach species show different degrees of maternal contribution to the developing offspring. In this study, we identify a multigene family that encodes water‐soluble proteins that are a major component of nutritive “Milk” in the cockroach, Diploptera punctata. This gene family is associated with the evolution of a new trait, viviparity, in which the offspring receive nutrition during the gestation period. Twenty‐five distinct Milk complementary DNAs were cloned and partially… Expand
Molecular mechanisms underlying milk production and viviparity in the cockroach, Diploptera punctata.
TLDR
RNA interference and methoprene application experiments reveal potential impacts of the breakdown and synthesis reduction of juvenile hormone in maintaining pregnancy in D. punctata and provide the comprehensive molecular mechanisms associated with cockroach viviparity, which provide critical resource for comparative purposes among vivips in insect systems. Expand
Adenotrophic viviparity in tsetse flies: potential for population control and as an insect model for lactation.
TLDR
Findings that utilized transcriptomics, physiological assays, and RNA interference-based functional analysis to understand different components of adenotrophic viviparity in tsetse flies are described. Expand
Matrotrophic viviparity constrains microbiome acquisition during gestation in a live‐bearing cockroach, Diploptera punctata
TLDR
In this research, 16S rRNA sequencing was used to characterize maternal and embryonic microbiomes as well as the development of the whole‐body microbiome across nymphal development and provides insight into the microbiome development, specifically with relation to viviparity, provisioning of milk‐like secretions, and mother–offspring interactions during pregnancy. Expand
Analysis of milk gland structure and function in Glossina morsitans: milk protein production, symbiont populations and fecundity.
TLDR
Fluorescent in situ hybridization and immunohistochemical analysis confirm that the milk gland secretory cells synthesize and secrete milk gland protein and transferrin, demonstrating its functional importance in larval nutrition and development. Expand
Matrotrophy and placentation in invertebrates: a new paradigm
TLDR
It is reported that regardless of the degree of expression, matrotrophy is established or inferred in at least 21 of 34 animal phyla, significantly exceeding previous accounts and changing the old paradigm that these phenomena are infrequent among invertebrates. Expand
Molecular aspects of viviparous reproductive biology of the tsetse fly (Glossina morsitans morsitans): regulation of yolk and milk gland protein synthesis.
TLDR
Both GmmYP1 and GmmMGP are involved in tsetse reproductive biology, the former associated with the process of oogenesis and the latter with larvigenesis, demonstrating that the protein is transferred from mother to larvae during its development. Expand
The Homeodomain Protein Ladybird Late Regulates Synthesis of Milk Proteins during Pregnancy in the Tsetse Fly (Glossina morsitans)
TLDR
The identification and delineation of the regulatory sequence of a major milk protein gene (milk gland protein 1:mgp1) by utilizing a combination of molecular techniques in tsetse, Drosophila transgenics, transcriptomics and in silico sequence analyses suggest that Lbl is part of a conserved reproductive regulatory system that could have implications beyond t setse to other vector insects such as mosquitoes. Expand
Identification of differentially expressed genes from adult cockroach females exhibiting maternal care behavior
TLDR
Isolation of full-length cDNAs for the DEGs identified in this study would be very helpful for a functional annotation of the individual genes and further understanding of maternal care behavior at the molecular level in the future. Expand
Diploptera punctata as a model for studying the endocrinology of arthropod reproduction and development.
The Pacific beetle cockroach, Diploptera punctata, has proven to be a valuable model insect in the study of the dynamics regulating juvenile hormone (JH) biosynthesis and metabolism, particularlyExpand
Cuticular hydrocarbon synthesis and its maternal provisioning to embryos in the viviparous cockroach Diploptera punctata.
TLDR
Embryos of the viviparous cockroach Diploptera punctata accumulate large amounts of hydrocarbon (HC) of either maternal or embryonic origin, and female abdominal integument was the only tissue that synthesized appreciable amounts of HC in vitro, and did so at an increasing rate from the time of mating to mid-pregnancy, when rates of synthesis declined. Expand
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