Year: 2022

INEVITABLE OUTCOME. "Presumably, if selection pressures were consistent for generations, speciation could occur." https://lnkd.in/dcsE4uQ View in LinkedIn

SPECIALIST SUCCESS. "In summary, specialists can experience greater evolutionary success compared to their generalist counterparts, possibly due to the very trade-offs that often drive specialization." http://rspb.royalsocietypublishing.org/content/281/1795/20142004.short View in LinkedIn

LOSS OF DIVERSITY. "Species diversity can be lost through two different but potentially interacting extinction processes: demographic decline and speciation reversal through introgressive hybridization. We argue that extinction by speciation reversal may be more widespread than currently appreciated." https://lnkd.in/dPU42hm View in LinkedIn

"SPECIATION REVERSAL in European Whitefish (Coregonus lavaretus (L.)) Caused by Competitor Invasion." https://lnkd.in/dJy3KuN View in LinkedIn

"REPRODUCTIVE ISOLATION is a process that impedes the exchange of genes between the members of distinct populations. The reproductive isolation may include both pre-zygotic and post-zygotic isolation mechanisms." https://lnkd.in/dJy3KuN View in LinkedIn

SO ENDS this first weekend on the reversal of speciation. Although the biological trend is predominantly towards increased specialization to exploit narrower niches, the demonstration that a reversion to generalization occurs bucks the age-old, and wrong, cliche of an inexorable march towards perfect adaptation. Nature is to cunning and plastic to have but a single directionality. Even symmetries may be reversed. View in LinkedIn

HOTSPOT GENE CONVERSION. "One process recognized as a major evolutionary force re-shaping the genomic nucleotide landscape at recombination hotspots, as shown in humans, chimpanzees, mice, yeast, and metazoans, is GC-biased gene conversion (gBGC). In gBGC, the repair of heteroduplex tracts formed during meiotic recombination leads to the non-Mendelian segregation of alleles favoring GC over AT variants." https://lnkd.in/df6FZrB View in LinkedIn

MEIOTIC MUTATIONS. "We present experimental evidence showing that meiosis is an important source of germline mutations. Because sites of meiotic recombination experience recurrent double-strand breaks at hotspots, recombination has been previously suspected to be mutagenic." https://lnkd.in/df6FZrB View in LinkedIn

"GENE CONVERSION, a process of non-reciprocal recombination that can either maintain genetic identity or promote genetic diversity. Gene conversions are initiated by chromosomal double stranded breaks that are subsequently repaired by the strand invasion of a homologous sequence." https://lnkd.in/dmTbDxE View in LinkedIn

INFECTIOUS INHERITANCE. "The symbiotic or parasitic association of microorganism with a host organism results in transmission of a phenotype in offspring of the host offspring." https://lnkd.in/dBcZ4KZ View in LinkedIn