Results 21 to 30 of about 690,322 (300)
Genomic consequences and selection efficacy in sympatric sexual versus asexual kelps
Genetic diversity can influence resilience and adaptative capacity of organisms to environmental change. Genetic diversity within populations is largely structured by reproduction, with the prevalence of asexual versus sexual reproduction often ...
Sofie Vranken +10 more
doaj +1 more source
Background Apogamy is a unique asexual reproduction in the ferns, in which somatic cells of gametophytes go through dedifferentiation and then differentiate into haploid sporophytes bypassing fertilization.
Qi Fu, Long-qing Chen
doaj +1 more source
Muller's ratchet and mutational meltdowns [PDF]
We extend our earlier work on the role of deleterious mutations in the extinction of obligately asexual populations. First, we develop analytical models for mutation accumulation that obviate the need for time-consuming computer simulations in certain ...
Lynch, M. +8 more
core +1 more source
The mutational meltdown in asexual populations [PDF]
Loss of fitness due to the accumulation of deleterious mutations appears to be inevitable in small, obligately asexual populations, as these are incapable of reconstituting highly fit genotypes by recombination or back mutation. The cumulative buildup of
Lynch, M. +6 more
core +1 more source
The role of sexual vs. asexual recruitment of Artemisia wudanica in transition zone habitats between inter-dune lowlands and active dunes in Inner Mongolia, China [PDF]
Artemisia wudanica is an endemic, perennial, pioneering psammophyte species in the sand dune ecosystems of western Horqin Sand Land in northern China. However, no studies have addressed how sexual and asexual reproduction modes of A.
Y. Wang +8 more
doaj +1 more source
Asexual reproduction strategies and blooming potential in Scyphozoa [PDF]
Scyphistomae show different modes of propagation, occasionally allowing the sudden release of great numbers of medusae through strobilation leading to so-called jellyfish blooms.
Schiariti, Agustín +8 more
core +1 more source
Is Parthenogenesis Sexual or Asexual Reproduction? [PDF]
CYTOLOGISTS and others commonly refer to parthenogenesis as asexual reproduction. This usage is, for example, to be found in the books of Wilson1, Darlington2, and White3, along with the facts that indicate that parthenogenesis is a derivative of normal sexual reproduction.
openaire +2 more sources
Research on the Regulatory Mechanism of Algae Reproduction under Abiotic Stress Conditions [PDF]
The book is reprint version of the Special Issue entitled Research on the Regulatory Mechanisms of Algae Reproduction under Abiotic Stress Conditions, highlighting novel findings that significantly contribute to the development of our understanding of ...
core +1 more source
Seagrasses form a unique group of submerged marine angiosperms capable of both sexual and asexual reproduction. The amounts of sexual and asexual reproduction differ within some species relying on geographic location and environmental factors.
Shidong Yue +24 more
doaj +1 more source
Asexual Reproduction in Holothurians [PDF]
Aspects of asexual reproduction in holothurians are discussed. Holothurians are significant as fishery and aquaculture items and have high commercial value.
Igor Yu Dolmatov
core

