Results 31 to 40 of about 98,853 (294)

Uniform female-biased sex ratios in alpine willows [PDF]

open access: yes, 2012
Premise of the study: The development of biased sex ratios in dioecious plant species has been ascribed to either (1) factors influencing differential adult mortality of male and female plants or (2) factors acting at an early life stage that determine ...
Myers-Smith, Isla H., Hik, David S.
core   +1 more source

'They did not have a word': the parental quest to locate a 'true sex' for their intersex children [PDF]

open access: yes, 2008
Given the paucity of research in this area, the primary aim of this study was to explore how parents of infants with unclear sex at birth made sense of 'intersex'.
Gary Butler   +10 more
core   +1 more source

Widespread sex differences in gene expression and splicing in the adult human brain. [PDF]

open access: yes, 2013
There is strong evidence to show that men and women differ in terms of neurodevelopment, neurochemistry and susceptibility to neurodegenerative and neuropsychiatric disease. The molecular basis of these differences remains unclear. Progress in this field
Ramasamy, Adaikalavan   +19 more
core   +1 more source

Impact of Climate Change on Regulation of Genes Involved in Sex Determination and Fruit Production in Cucumber

open access: yesPlants, 2023
Environmental changes, both natural and anthropogenic, mainly related to rising temperatures and water scarcity, are clearly visible around the world. Climate change is important for crop production and is a major issue for the growth and productivity of
Aparna   +3 more
doaj   +1 more source

Oviposition but not sex allocation is associated with transcriptomic changes in females of the parasitoid wasp Nasonia vitripennis [PDF]

open access: yes, 2015
This work was supported by Natural Environment Research Council (NERC) grant (NE/J024481/1). DMS was previously funded by a NERC Advanced Research Fellowship.Linking the evolution of the phenotype to the underlying genotype is a key aim of evolutionary ...
Ritchie, Michael Gordon   +10 more
core   +1 more source

Pattern Does Not Equal Process: Exactly When Is Sex Environmentally Determined?

open access: yesThe American Naturalist, 2003
Of prime importance in evolutionary biology are the description of pattern and explanations of process. Frequently, however, multiple processes can explain a given pattern. Such cases require experimental protocols or research criteria to distinguish among alternatives so pattern can be critically assigned to process.
Adams, Dean   +2 more
openaire   +4 more sources

Temperature-dependent turnovers in sex-determination mechanisms: a quantitative model [PDF]

open access: yes, 2010
Sex determination is often seen as a dichotomous process: individual sex is assumed to be determined either by genetic (genotypic sex determination, GSD) or by environmental factors (environmental sex determination, ESD), most often temperature ...
Samuel Neuenschwander   +6 more
core   +1 more source

Context-dependent thermolability of sex determination in a lacertid lizard with heteromorphic sex chromosomes [PDF]

open access: yes, 2023
Developmental conditions can profoundly impact key life history traits of the individual. In cases where offspring sex is driven by developmental reaction norms, permanent changes to the phenotype can fundamentally alter life history trajectories.
Geoffrey M. While   +9 more
core   +1 more source

Transcriptomics analysis revealing candidate genes and networks for sex differentiation of yesso scallop (Patinopecten yessoensis)

open access: yesBMC Genomics, 2019
Background The Yesso scallop, Patinopecten (Mizuhopecten) yessoensis, is a commercially important bivalve in the coastal countries of Northeast Asia.
Liqing Zhou   +9 more
doaj   +1 more source

Sex determination in the Squalius alburnoides complex: an initial characterization of sex cascade elements in the context of a hybrid polyploid genome. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Sex determination processes vary widely among different vertebrate taxa, but no group offers as much diversity for the study of the evolution of sex determination as teleost fish. However, the knowledge about sex determination gene cascades is
Irene Pala   +3 more
doaj   +1 more source

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