Results 281 to 290 of about 24,051,771 (331)
Some of the next articles are maybe not open access.
Trends in Ecology & Evolution, 1996
The study of breeding systems explores relationships between mating behaviour and parental care. Recent findings have shown that in many birds, fishes, anurans, and insects, females play a more active role than previously thought, by engaging in mate choice, mating with more than one male, and selecting genetic partners separately from social partners.
openaire +2 more sources
The study of breeding systems explores relationships between mating behaviour and parental care. Recent findings have shown that in many birds, fishes, anurans, and insects, females play a more active role than previously thought, by engaging in mate choice, mating with more than one male, and selecting genetic partners separately from social partners.
openaire +2 more sources
Climate change challenges plant breeding.
Current opinion in plant biology, 2022Plant breeding is important to cope with climate change impacts, complementing crop management and policy interventions to ensure global food production.
W. Xiong, M. Reynolds, Yunbi Xu
semanticscholar +1 more source
MERINO SHEEP BREED RAISED UNDER MOUNTAIN BREEDING SYSTEM
Izvestiâ Timirâzevskoj selʹskohozâjstvennoj akademii, 2020Dagestan is the leading Republic of Russia in terms of the number of sheep and sheep breeding products. The zoned target sheep breed in Dagestan is the Dagestan mountain breed. However, this breed produces thin but non-merino wool. Developing the Merino sheep breed suitable for mountain breeding is an urgent problem.
KH.KH. MUSALAYEV +2 more
openaire +1 more source
Breeding systems and genome evolution
Current Opinion in Genetics & Development, 2001The profound effects of inbreeding and other non-recombining breeding systems on genetic variability and molecular evolution are now beginning to be understood. Theoretical models predict how such populations are expected to differ from outcrossed populations, and DNA sequence data are being collected and used to test the predictions.
D, Charlesworth, S I, Wright
openaire +2 more sources
2003
Abstract Sexual reproduction often involves substantial amounts of time and resources devoted to competition for mates, courtship, and mate choice. These behaviors may be underpinned by elaborate physical traits, such as acute sensory systems, bright color patterns, gawdy ornaments, and formidable weapons.
Ian A Fleming, John D Reynolds
openaire +1 more source
Abstract Sexual reproduction often involves substantial amounts of time and resources devoted to competition for mates, courtship, and mate choice. These behaviors may be underpinned by elaborate physical traits, such as acute sensory systems, bright color patterns, gawdy ornaments, and formidable weapons.
Ian A Fleming, John D Reynolds
openaire +1 more source
Garlic breeding system innovations [PDF]
, 2007 This review outlines innovative methods for garlic breeding improvement and discusses the techniques used to increase variation like mutagenesis and in vitro techniques, as well as the current developments in florogenesis, sexual hybridization, genetic transformation and mass propagation. Sexual sterility of garlic reduces its potential for improvement
Zheng, S.J. +6 more
openaire +2 more sources
Euphytica, 1963
New concepts in population genetics call for reappraisal of plant breeding procedures; this commentary evaluates certain breeding procedures according to their probable effectiveness in promoting maximum gene recombinations and achieving maximum fitness.
openaire +1 more source
New concepts in population genetics call for reappraisal of plant breeding procedures; this commentary evaluates certain breeding procedures according to their probable effectiveness in promoting maximum gene recombinations and achieving maximum fitness.
openaire +1 more source
Breeding systems in thePolemoniaceae
Plant Systematics and Evolution, 1990Pollen — ovule ratios and percentages of stigmatic pollen germination (SPG) were measured for over 160 taxa of thePolemoniaceae. When related to taxa with known breeding systems, it is found that low SPGs and high P:O ratios characterize xenogamous plants, high SPGs and low P:Os characterize autogamous plants.
Uzi Plitmann, Donald A. Levin
openaire +1 more source
A comprehensive breeding system
Der Züchter, 1967An outline of a comprehensive breeding system developed and used by the Kenya Maize Research Section is presented. This system has four main phases: 1. Evaluation of local and exotic varieties so that the breeding material is the best available. 2. Compositing the selected breeding material into two or more populations or varieties in
S. A. Eberhart, M. N. Harrison, F. Ogada
openaire +1 more source
Transposon dynamics and the breeding system
Genetica, 1999The selfish DNA hypothesis predicts that natural selection is responsible for preventing the unregulated build up of transposable elements in organismal genomes. Accordingly, between-species differences in the strength and effectiveness of selection against transposons should be important in driving the evolution of transposon activity and abundance ...
S I, Wright, D J, Schoen
openaire +2 more sources