Results 151 to 160 of about 4,672,682 (301)

Heterosis in crosses between remnant populations of the rare prairie forb Silene regia: Implications for restoration genetics

American Journal of Botany, EarlyView.
Abstract Premise Calls to adopt seed‐sourcing strategies in biological restoration that preserve local adaptation while maximizing genetic variation (e.g., regional admixture provenancing) are increasingly common. Heterosis, the increased fitness of progeny from crosses between populations relative to progeny from crosses within populations, could ...
Isabelle A. Turner, Juan Diego Rojas‐Gutierrez, Bob Easter, Christopher G. Oakley   +3 more
wiley   +1 more source

Developmental plasticity of hermaphrodite sperm production across environments in Caenorhabditis elegans.

PLoS ONE
Many organisms show flexible resource allocation to adjust for optimal reproductive investment across different environments. How such reproductive plasticity occurs in hermaphroditic organisms-allocating resources to both oocytes and sperm-are central ...
Clotilde Gimond, Nausicaa Poullet, Anne Vielle, Emilie Demoinet, Christian Braendle   +4 more
doaj   +1 more source

Thinking as human: Self-reflective reinforcement learning framework for fertilization decision-making

Smart Agricultural Technology
Variable-rate fertilization based on reinforcement learning has achieved significant success in simulated environments. However, issues of insecurity and inefficiency led by blind exploration mechanism constitute impediments to apply reinforcement ...
Shulang Li, Jie Liu, Yang Yang, Rujia Shen, Jingchi Jiang   +4 more
doaj   +1 more source

What's Genetic Variation Got to Do with It? Starvation-Induced Self-Fertilization Enhances Survival in Paramecium. [PDF]

Genome Biol Evol, 2020
Thind AS, Vitali V, Guarracino MR, Catania F.   +3 more
europepmc   +1 more source

Who's on first? : causal ordering of ademic self-concept, motivational goals, and achievement

, 2004
Investigating causal relations between self-concept and motivational goals represents a leading edge in self-concept research. The objective of the study was to determine the nature and extent of causal relations between students’ academic self-concept ...
Dowson, Martin, Barker, Katrina L., McInerney, Dennis M.   +2 more
core  

Recombination fraction in pre-recombinant inbred lines (PRERIL) - revisiting a century old problem in genetics

BMC Genomics
Background Traditional recombinant inbred lines (RILs) are generated from repeated self-fertilization or brother-sister mating from the F1 hybrid of two inbred parents.
Shizhong Xu, José Osorio y Fortéa
doaj   +1 more source

Untangling the web : reports of self-concept, academic motivation and perceived discrimination for indigenous secondary students

, 2006
Recently, a new direction has emerged within the field of educational psychology that has sought to address the inequities between Indigenous Australian students and the wider Australian student population.
Craven, Rhonda, Bodkin-Andrews, Gawaian
core  

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

Inference of past demography, dormancy and self-fertilization rates from whole genome sequence data. [PDF]

PLoS Genet, 2020
Sellinger TPP, Abu Awad D, Moest M, Tellier A.   +3 more
europepmc   +1 more source

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source