5 research outputs found
Data from: Host species of a sexual-parasite do not differentiate between clones of Amazon mollies
A major mechanism of pre-zygotic isolation is the ability for individuals to recognize conspecifics. In gynogenetic species complexes, the sexual host species occur in syntopy with the unisexual species that relies on the sexuals’ sperm for reproduction, which provide an excellent opportunity for the evolution of fine-tuned species recognition capabilities. Here, we examined if males and females from both parental species (sailfin molly, Poecilia latipinna, and Atlantic molly, P. mexicana) can distinguish between different clonal lineages of the hybrid, all-female Amazon molly (P. formosa). Both males and females were presented with the choice of two different pairings of Amazon mollies: 1) a sympatric female and an allopatric female; and 2) two sympatric females. We found that neither males nor females of sailfin or Atlantic mollies show a preference for a clone type. These results suggest that either the parental species do not have the ability to recognize different Amazon molly clones or they recognize but do not have a preference for a specific Amazon molly clone
Data from: Host species of a sexual-parasite do not differentiate between clones of Amazon mollies
A major mechanism of pre-zygotic isolation is the ability for individuals to recognize conspecifics. In gynogenetic species complexes, the sexual host species occur in syntopy with the unisexual species that relies on the sexuals’ sperm for reproduction, which provide an excellent opportunity for the evolution of fine-tuned species recognition capabilities. Here, we examined if males and females from both parental species (sailfin molly, Poecilia latipinna, and Atlantic molly, P. mexicana) can distinguish between different clonal lineages of the hybrid, all-female Amazon molly (P. formosa). Both males and females were presented with the choice of two different pairings of Amazon mollies: 1) a sympatric female and an allopatric female; and 2) two sympatric females. We found that neither males nor females of sailfin or Atlantic mollies show a preference for a clone type. These results suggest that either the parental species do not have the ability to recognize different Amazon molly clones or they recognize but do not have a preference for a specific Amazon molly clone
Male clonal recog data- Dryad
Raw data for male and female preferences in Poecilia latipinna and Poecilia formos
Children and adults with thrombotic thrombocytopenic purpura associated with severe, acquired Adamts13 deficiency: comparison of incidence, demographic and clinical features
BACKGROUND
Thrombotic thrombocytopenic purpura (TTP) associated with severe, acquired ADAMTS13 deficiency is uncommonly reported in children. The incidence, demographic, and clinical features of these children, compared to adults, have not been described.
PROCEDURES
This study focused on children (<18 years old) and adults with TTP associated with severe, acquired ADAMTS13 deficiency, defined as activity <10%. The incidence rates for TTP in children and adults were calculated from patients enrolled in the Oklahoma TTP-HUS (Hemolytic-Uremic syndrome) Registry, 1996-2012. To describe demographic and clinical features, children with TTP were also identified from a systematic review of published reports and from samples sent to a reference laboratory for analysis of ADAMTS13.
RESULTS
The standardized annual incidence rate of TTP in children was 0.09 × 10(6) children per year, 3% of the incidence rate among adults (2.88 × 10(6) adults per year). Among the 79 children who were identified (one from the Oklahoma Registry, 55 from published reports, 23 from the reference laboratory), TTP appeared to be more common among females, similar to the relative increased frequency of women among adults with TTP, and more common in older children. Clinical data were available on 52 children; the frequency of severe renal failure, relapse, treatment with rituximab, and systemic lupus erythematosus in these children was similar to adults with TTP.
CONCLUSIONS
TTP associated with severe, acquired ADAMTS13 deficiency is uncommon in children. The demographic and clinical features of these children are similar to the features of adults with TTP