We areinvestigating genome wide positive and negativeselection in this plants, using Capsella grandiflora as amodel system. Using Illumina sequence data wedetermined allele frequency spectra for polymorphic sites in 26 Capsella grandiflora chromosomes. These spectra, and divergence data from Neslia ...
Evidence from Capsella grandiflora suggests that whether gene body methylation constrains cis-regulatory variation, the proximity of transposable elements and tissue-specific expression increase the likelihood of allele-specific expression in natural populations of the species [44]. The role of methylation ...
Importantly, the number of PEGs and the effective ploidy decrease with the selfing history of a species: the obligate outbreeder Capsella grandiflora had the highest effective ploidy, followed by the recent selfer Capsella rubella and the ancient selfer Capsella orientalis. PEGs were associated with...
grandiflora lineage is more recessive than the B-haplotype from the C. orientalis lineage, then it is possible that the newly formed allotetraploid C. bursa-pastoris was immediately SC. Such instant SC might have facilitated establishment of the new allopolyploid. In order to improve our ...
Here we show that TEs in a population of the plant Capsella grandiflora are most deleterious when they insert in genic and regulatory regions. We find that TEs indeed are associated with unusual levels of gene expression, predominantly decreased expression. Furthermore, this effect is stronger than...
chloroplast genomeIndelnext-generation sequencingSNPThe complete chloroplast genome of Capsella grandiflora is finished in this study, which consists of 154638 base pairs (bp) in size containing a pair of inverted repeats (IRa and IRb) of 2......
We wanted to understand how the transition from self-incompatibility to self-compatibility, which neutralized the local restriction of the ancestral SI species Capsella grandiflora , was achieved. Here, we present implications for a remarkable degree of flexibility of mating systems inherited in Capsella...
We used a series of synthetic diploid and tetraploid hybrids obtained between self-fertilizing Capsella orientalis and outcrossing Capsella grandiflora to test whether the breakdown of SI could be observed immediately after hybridization, and whether the occurrence of SC phenotypes could be explained by ...
Segregation in open-pollinated families revealed that Capsella grandiflora was outcrossing, whereas C. rubella was highly inbred, with most populations homozygous or uniform at all three loci. Inheritance in the tetraploid colonizer C. bursa-pastoris is disomic. This species was also predominantly ...
The genus Capsella comprises three well-defined species, C. grandiflora , C. rubella and C. bursa-pastoris (the widely known Shepherd's purse). Together with some intraspecific varieties, however, these species show remarkable differences in ploidy level, breeding systems, habitat range, and some...