Results 71 to 80 of about 11,571 (204)
Does diploidy increase the rate of adaptation? [PDF]
Genetics, 1994 Abstract Explanations of the evolution of diploidy have focused on the advantages gained from masking deleterious alleles. Recent theory has shown, however, that masking does not always provide an advantage to diploidy and would never favor diploidy in predominantly asexual organisms.
H A, Orr, S P, Otto
openaire +2 more sources
Sexual conflict as a constraint on asexual reproduction: an empirical review
Biological Reviews, Volume 100, Issue 6, Page 2681-2706, December 2025.ABSTRACT Theory predicts that facultatively asexual animals, which can leverage the advantages of both sexual and asexual reproduction, should outcompete obligately sexual and obligately asexual animals. Yet, paradoxically, obligate sexual reproduction predominates in many animal lineages, while the most flexible form of facultative asexuality (i.e ...
Daniela Wilner +2 more
wiley +1 more source
Under-dominance constrains the evolution of negative autoregulation in diploids [PDF]
, 2013 Regulatory networks have evolved to allow gene expression to rapidly track changes in the environment as well as to buffer perturbations and maintain cellular homeostasis in the absence of change.
Pomiankowski, A +3 more
core
Isoenzyme electrophoresis of 30 isolates of Giardia from humans and felines [PDF]
, 1988 Thirty isolates of Giardia duodenalis from humans and felines were compared by isoenzyme electrophoresis. Using 10 enzyme systems, 13 different zymodemes were distinguished. The majority of zymodemes could be divided into two groups: one group comprising
Lymbery, A.J. +2 more
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Molecular Ecology, Volume 34, Issue 23, December 2025.ABSTRACT Species with extremely small population sizes are critically endangered because of reduced genetic diversity, increased inbreeding and hybridisation threats. Genomic tools significantly advance conservation by revealing genetic insights into endangered species, notably in monitoring frameworks.
José Carlos del Valle +6 more
wiley +1 more source
The Chromosome Number of Schaffnerella Gracilis (Gramineae, Chloridoideae) [PDF]
, 2002 The first ever chromosome report for the monotypic genus Schaffnerella (Grarnineae, Chloridoideae) is 2n = 20 (10 II) from pollen parent cells at diakinesis, which indicates diploidy and a base number of 10. The close relative Lycurus likewise has x = 10,
Columbus, J. Travis +1 more
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Advanced Science, Volume 12, Issue 44, November 27, 2025.This study identifies that RBM10 represses the transcriptional activity of RORB in liquid condensates, resulting in down‐regulation of NR1D1 and RIOK3 that further activates NF‐κB activity to facilitate lysosomal biogenesis and aggressive features of NB cells.
Yanhua Guo +9 more
wiley +1 more source
Automictic Reproduction in Interspecific Hybrids of Poeciliid Fish [PDF]
, 2007 SummaryAutomixis, the process whereby the fusion of meiotic products restores the diploid state of the egg, is a common mode of reproduction in plants but has also been described in invertebrate animals [1, 2].
Lampert, Kathrin P. +6 more
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Genetical evidence for diploidy in Phytophthora
Genetical Research, 1971 SUMMARYA spontaneous mutant of Phytophthora drechsleri, resistant to p-fluorophenyl-alanine and two induced mutants resistant to chloramphenicol have been selected and analysed. The pattern of inheritance of the mutant phenotypes was identical and conformed to that expected in a diploid organism.
David S. Shaw, Ikram A. Khaki
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The polyploid continuum and the landscape of polyploid genomic variation
American Journal of Botany, Volume 112, Issue 11, November 2025.Abstract Polyploid research has traditionally distinguished between autopolyploids and allopolyploids on the basis of evolutionary origins, modes of inheritance, or chromosomal pairing behavior during meiosis. It has long been recognized, however, that a binary classification does not accurately reflect the complexity and diversity inherent to ...
Alex D. Twyford +6 more
wiley +1 more source