scholarly journals Wildfire as a natural stressor and its effect on female phenotype and ornament development

2021 ◽  
Author(s):  
Stacey L. Weiss ◽  
Robert M. Brower
Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 437
Author(s):  
Daniele Sommaggio ◽  
Giuseppe Fusco ◽  
Marco Uliana ◽  
Alessandro Minelli

Gynandromorphs, i.e., individuals with a mix of male and female traits, are common in the wild bees of the genus Megachile (Hymenoptera, Apoidea). We described new transverse gynandromorphs in Megachile pilidens Alfkeen, 1924 and analyze the spatial distribution of body parts with male vs. female phenotype hitherto recorded in the transverse gynandromorphs of the genus Megachile. We identified 10 different arrangements, nine of which are minor variants of a very general pattern, with a combination of male and female traits largely shared by the gynandromorphs recorded in 20 out of 21 Megachile species in our dataset. Based on the recurrence of the same gynandromorph pattern, the current knowledge on sex determination and sex differentiation in the honey bee, and the results of recent gene-knockdown experiments in these insects, we suggest that these composite phenotypes are possibly epigenetic, rather than genetic, mosaics, with individual body parts of either male or female phenotype according to the locally expressed product of the alternative splicing of sex-determining gene transcripts.


1982 ◽  
Vol 99 (4) ◽  
pp. 585-587 ◽  
Author(s):  
Martha Medina ◽  
Susana Kofman-Alfaro ◽  
Gregorio Pérez-Palacios

Abstract. Two unrelated 46,XX individuals with female phenotype and sexual infantilism were studied. Endocrine findings showed anoestrogenism and hypergonadotrophism with a normal pituitary response to LRH. Laparotomy disclosed ovarian absence with normal Mullerian derivatives and no gonadal streaks were found within the true pelvis or inguinal canals. This condition represents the 46,XX counterpart of the 46,XY gonadal absence syndrome. Whether the XX agonadism reported here is a different and distinctive entity or is a variant of the XX pure gonadal dysgenesis syndrome can not be ascertained at present.


2008 ◽  
Vol 4 (5) ◽  
pp. 410-414 ◽  
Author(s):  
J. A. Böök ◽  
Batia Eilon ◽  
I. Halbrecht ◽  
Luise Komlos ◽  
Fiorella Shabtay
Keyword(s):  

2019 ◽  
Vol 5 (3) ◽  
pp. 171-186
Author(s):  
Clare Allely

Purpose The purpose of this paper is to address the need for increased understanding, awareness and recognition of the autism female phenotype in terms of repetitive behaviours and restricted interests (RBRIs). Design/methodology/approach A systematic PRISMA review was conducted. The main aim of the present systematic review is to identify studies which have investigated RBRIs in females with autism spectrum disorder (ASD) or the differences in RBRIs between males and females with ASD. Findings In sum, 19 relevant articles were identified: 5 studies found no significant evidence to support the notion of sex differences in RRBIs in ASD; 1 study did not report any differences in RRBIs between males and females with ASD; 12 studies found evidence that males with ASD had significantly more RRBIs compared to females with ASD; and, lastly, 1 study found that girls with ASD have features of RRBIs which are exhibited more compared to boys with ASD. Research limitations/implications There is a real lack of in-depth knowledge and understanding of the female phenotype of ASD, and such lack of knowledge has a detrimental impact on the identification of autistic females and a lack of identification can have negative consequence. This is important to address in future research as it is well established that the earlier the diagnosis, the better the outcomes, due to the timely access to appropriate interventions. Practical implications The RBRIs exhibited in autistic females are not sufficiently captured by most currently diagnostic instruments. Clinicians are less likely to identify the RBRIs in females as they tend not to be the typical repetitive behaviours commonly associated with ASD. It has been recommended that clinicians consider “females as a whole” in terms of their clinical presentation and look for any indication of RBRIs, even repetitive interests which appear clinically innocuous. Originality/value There is relatively little research investigating RBRIs in autistic women and girls. There is a real need to highlight the importance of understanding and recognising how RBRIs can differ between males and females with ASD.


2017 ◽  
pp. bcr-2016-219082 ◽  
Author(s):  
Suja Sukumar ◽  
Pavan Uppula ◽  
Santosh Kumar ◽  
Anil Bhansali

2017 ◽  
Vol 38 (5) ◽  
pp. 548-555 ◽  
Author(s):  
Tessa Mattiske ◽  
Ching Moey ◽  
Lisenka E. Vissers ◽  
Natalie Thorne ◽  
Peter Georgeson ◽  
...  

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