Plants and animals overwhelmingly reproduce sexually, but why gamble with the DNA like that?
Tag - apomixis
Sarah Covshoff
Botanists discover not all clones are the same, it depends on how you make them
A study of Paspalum species native to South America shows that while clones can expand a plant's range, the method a parent uses to clone itself will impact how the population develops.
Alun Salt
Invasive alien clones, autonomous apomixis in Praxelis clematidea
Clonal reproduction is a desirable trait to possess as an invasive plant and has helped Praxelis clematidea to become highly invasive around the world.
William Salter
Clonal female populations dominate the tropical herb genus, Hanguana
Can apomixis explain the distribution of Hanguana individuals in Singapore?
The morphometrics of autopolyploidy: insignificant differentiation among sexual–apomictic cytotypes
Polyploidization of the plant genome affects the phenotype of individuals including their morphology. In autopolyploids, we expect mainly nucleotypic effects, from a number of monoploid genomes (i.e. chromosome sets) or...
Sexuality and apomixis in Hieracium are tightly associated with ploidy
Asexual reproduction via seeds (apomixis) is an important speciation mechanism in angiosperms, but its frequency is largely unknown. Mráz and Zdvořák used flow cytometric seed screening to unravel reproductive pathways...
Alex Assiry
Establishing the cell biology of apomixis in Boechera
The genus Boechera (Brassicaceae) is comprised of both sexual and apomictic species, permitting comparative analyses of meiotic disturbances and parthenogenesis. Hybridization, polyploidy and environmental adaptation...
Can a cold snap put a stop to sex?
The alpine plant Ranunculus kuepferi can face spring frosts while growing reproductive organs. Does the cold explain why sometimes the plant doesn't bother with sex?
Intraspecific trait variation provides ecological opportunity for polyploids
One of the features of some plants is they can be polyploid. Humans have a pair of chromosomes carrying our genetic information. Plants can vary between one or two chromosomes, known as haploid or diploid. However, they...
botanyone
Hypericum hybrids trapped in their polyploid gene pool
The underlying genetic causes of the switch to apomixes are not yet fully understood, but in Hypericum there is good evidence for the existence of ‘apomictic factors’.
The evolutionary processes of apomictic brambles
Asexual reproduction is relatively common in higher plants and comprises vegetative reproduction or clonal reproduction through seeds (apomixis or agamospermy). Apomixis is found in less than 1% of angiosperms and...
Origin and genetic differentiation of pink-flowered Sorbus hybrids
Allopolyploidy combined with apomixis is a partnership that generates novel species in many plant taxa, including the genus Sorbus. Uhrinová et al. use chloroplast and nuclear markers as well as flow cytometry to reveal...
Genetic makeup of autonomous endosperm in Hieracium
Apomixis (asexual seed formation) generates clonal plants with a maternal genotype. Apomictic Hieracium subgenus Pilosella species mitotically form female gametes, with the seed’s embryo and endosperm developing...
Contrasting evolutionary patterns and historical hybridization of Anthosachne
Polyploidization and apomixis contribute to taxonomic complexity in Anthosachne, a perennial genus native to Australia in the wheat tribe. Sha et al. performed a phylogenetic analysis to explore differentiation patterns...
