Unreduced gametes: meiotic mishap or evolutionary mechanism?
Unreduced gametes (gametes with the somatic chromosome number) are known to facilitate
polyploid formation. Unreduced gametes result from a plethora of different mechanisms …
polyploid formation. Unreduced gametes result from a plethora of different mechanisms …
Evolutionary dynamics of unreduced gametes
Unreduced gametes, which have the somatic (2n) chromosome number, are an important
precursor to polyploid formation and apomixis. The product of irregularities in meiosis, 2n …
precursor to polyploid formation and apomixis. The product of irregularities in meiosis, 2n …
Pure polyploidy: closing the gaps in autopolyploid research
Polyploidy (whole‐genome duplication, WGD) is an integral feature of eukaryotic evolution
with two main forms typically recognized, autopolyploidy and allopolyploidy. In plants, a …
with two main forms typically recognized, autopolyploidy and allopolyploidy. In plants, a …
Genetic and epigenetic alterations after hybridization and genome doubling
Hybridization and polyploidization are now recognized as major phenomena in the
evolution of plants, promoting genetic diversity, adaptive radiation and speciation. Modern …
evolution of plants, promoting genetic diversity, adaptive radiation and speciation. Modern …
Endopolyploidy as a potential driver of animal ecology and evolution
Endopolyploidy–the existence of higher‐ploidy cells within organisms that are otherwise of a
lower ploidy level (generally diploid)–was discovered decades ago, but remains poorly …
lower ploidy level (generally diploid)–was discovered decades ago, but remains poorly …
Cryptic fitness advantage: diploids invade haploid populations despite lacking any apparent advantage as measured by standard fitness assays
AC Gerstein, SP Otto - PloS one, 2011 - journals.plos.org
Ploidy varies tremendously within and between species, yet the factors that influence when
or why ploidy variants are adaptive remains poorly understood. Our previous work found that …
or why ploidy variants are adaptive remains poorly understood. Our previous work found that …
Non-Mendelian phenomena in allopolyploid genome evolution
Perhaps all flowering plants have experienced one or more episodes of polyploidization at
some time in their evolutionary history. Recent evidence indicates that this genome doubling …
some time in their evolutionary history. Recent evidence indicates that this genome doubling …
Polyploidy and its effect on evolutionary success: old questions revisited with new tools
A Madlung - Heredity, 2013 - nature.com
Polyploidy, the condition of possessing more than two complete genomes in a cell, has
intrigued biologists for almost a century. Polyploidy is found in many plants and some animal …
intrigued biologists for almost a century. Polyploidy is found in many plants and some animal …
Genetic divergence and the number of hybridizing species affect the path to homoploid hybrid speciation
AA Comeault, DR Matute - Proceedings of the National …, 2018 - National Acad Sciences
Hybridization is often maladaptive and in some instances has led to the loss of biodiversity.
However, hybridization can also promote speciation, such as during homoploid hybrid …
However, hybridization can also promote speciation, such as during homoploid hybrid …
Hybridization, speciation and novelty
PS Soltis - Journal of Evolutionary Biology, 2013 - academic.oup.com
Hybridization has been alternatively viewed as evolutionary noise (eg Wagner, 1970) and
an engine of biodiversity (eg Arnold, 1997), and debate continues over the role of …
an engine of biodiversity (eg Arnold, 1997), and debate continues over the role of …