Dog-roses have some special genetic tricks to cope with odd-ploidy.
Tag - polyploidy
Alex Assiry
How do you get more DNA down a pollen tube?
A common event for flowering plants is whole genome duplication (WGD), where a plant gets extra chromosomes. It’s often studied in mature plants, but there can also be extra copies of the genome in the pollen, and...
Distribution of Veronica polyploids is influenced by both habitat differentiation and historic glaciation
Species with higher ploidy levels prefer cooler, wetter habitats than diploids.
Erin Zimmerman
Resprouting potential of rhizome fragments in an invasive aquatic plant
Non-native aquatic Ludwigia species from a polyploid complex are among the world’s most problematic invasive plants. A new paper in AoBP finds out why.
William Salter
The Miscanthus sacchariflorus homeland lies beneath the waves
A study of the genetic diversity of Miscanthus sacchariflorus has revealed that the centre of its diversity now lies under the Yellow Sea.
Fi Gennu
Role of ploidy in Arabidopsis arenosa colonization of alpine habitats
Doubling the chromosomes of Arabidopsis arenosa does not always lead to strong ecological niche differentiation.
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...
A new biological species in the Mercurialis annua polyploid complex
In eastern Spain (and many other places if you look) you can find Mercurialis annua, a plant with a complicated sex life. A new paper by Wen-Juan Ma and colleagues examine two polyploid species that formed after...
Alun Salt
Phylogenetic relationships of two endemic eyebright species from the eastern European Alps
Mountain ranges host a considerable number of endemic species, which is considered to be the result of the complex origin of mountain ranges, shaped by geographic isolation, climate changes and strong microhabitat...
AoBP special issue announcement: Population differentiation in plants
Plant populations continually change over space and time. Many factors contribute to this differentiation with some resulting in evolutionary change. Unravelling the relative importance of ecological and genetic...
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...
Identifying evolutionary patterns in complex plant groups with DNA barcoding
The sequencing of short standardised pieces of DNA (DNA barcodes) is commonly used to tell species apart. This approach is thought to be of limited value in complex plant groups where species have evolved recently. In a...
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
Effects of plant polyploidy on the legume-rhizobia mutualism
Polyploidy alters plant genomes, phenotypes, and abiotic interactions. The effects of polyploidy on plant-biotic interactions however are less well known. One important plant-biotic interaction is the legume-rhizobia...
