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GERMLINE. "In animals, where haploid mitosis is suppressed, syngamy immediately follows meiosis. Furthermore, specific cells are ‘destined’ at an early stage to eventually undergo meiosis (a.k.a germline), whereas this cell fate is determined much later in fungi, plants and some algae." https://lnkd.in/e2tp_G5 View in LinkedIn

SOMATIC CONTROL. "In metazoans, life cycles are mostly determined by the extent of somatic development within each phase rather than by the timing of meiosis, which can be halted or postponed." http://biorxiv.org/content/biorxiv/early/2016/04/28/050831.full.pdf View in LinkedIn

CELLULAR BOTTLENECK. "In multicellular eukaryotes, where meiosis is tightly associated with reproduction (unlike in many protists), meiosis is also a cellular and genetic bottleneck at the critical transition between the diploid and the haploid phases." https://lnkd.in/e2tp_G5 View in LinkedIn

CORE TO BOTH PATHWAYS. "Meiosis is a key step in sexual life cycles, as well as some asexual life cycles derived from sexual ancestors." https://lnkd.in/e2tp_G5 View in LinkedIn

EDITING. "It is also possible that stringent synapsis checkpoints evolved, in part, to prevent the formation of defective gametes due to transposable element activity, along with other possible causes of meiotic errors." https://lnkd.in/e2tp_G5 View in LinkedIn

TRANSITION TO ASEXUALITY. "In many cases, the initial evolution of asexuality may thus resemble the evolution of self-fertilisation, and several traits may pre-exist (such as low recombination rates) that make the successful transition to asexuality more likely in some taxa." https://lnkd.in/e2tp_G5 View in LinkedIn

RESETTING. "Alternative transposable element silencing mechanisms, such as those involving small RNAs, may have evolved to ensure proper transposable element control during epigenetic resetting. For example, these mechanisms involve piRNA and/or endo-siRNA in mammal male and female germ lines, respectively, and transfer of siRNA from the central cell to the egg cell in plant female gametophytes." https://lnkd.in/e2tp_G5 View in LinkedIn

SECONDARY ASEXUALITY. "Unless meiosis can be entirely bypassed (as e.g. with vegetative reproduction), secondary asexuality is likely to evolve via modification of meiosis, keeping much of the cell signalling and machinery intact." https://lnkd.in/e2tp_G5 View in LinkedIn

VULNERABILITY. "Meiosis may be specifically vulnerable to transposable element activity for several reasons. These include (1) deficient synapsis and repair due to the reshuffling of meiotic machinery towards transposable element-induced double strand breaks, (2) ectopic recombination among transposable elements, (3) interference with synapsis due to transposable element transcriptional activity." https://lnkd.in/e2tp_G5 View in LinkedIn

ASEXUAL MUTANTS. "The question of how a mitotic asexual mutant can invade a sexual species is at the heart of the debate on the evolutionary maintenance of sex, as this is what is investigated in most theoretical models, and is the situation where the cost of sex is most evident." http://biorxiv.org/content/biorxiv/early/2016/04/28/050831.full.pdf View in LinkedIn