Seed size, endosperm and germination variation in sexual and apomictic Boechera [PDF]
Frontiers in Plant Science, 2022 Asexual reproduction results in offspring that are genetically identical to the mother. Among apomictic plants (reproducing asexually through seeds) many require paternal genetic contribution for proper endosperm development (pseudogamous endosperm).
Dorota Paczesniak +10 more
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Phenotypic plasticity and genetic diversity shed light on endemism of rare Boechera perstellata and its potential vulnerability to climate warming [PDF]
Ecology and Evolution, 2023 The rapid pace of contemporary environmental change puts many species at risk, especially rare species constrained by limited capacity to adapt or migrate due to low genetic diversity and/or fitness.
Jennifer Nagel Boyd +5 more
doaj +2 more sources
Evolution of an Apomixis-Specific Allele Class in Supernumerary Chromatin of Apomictic Boechera [PDF]
Frontiers in Plant Science, 2022 Asexual reproduction through seeds in plants (i.e., apomixis) is a heritable trait, and apomixis- linked loci have been identified in multiple species. However, direct identification of genomic elements is typically hindered as apomixis-linked loci and ...
Martin Mau +8 more
doaj +2 more sources
Phylogenetic and Expression Analysis of CENH3 and APOLLO Genes in Sexual and Apomictic Boechera Species [PDF]
Plants, 2022 Apomictic plants (reproducing via asexual seeds), unlike sexual individuals, avoid meiosis and egg cell fertilization. Consequently, apomixis is very important for fixing maternal genotypes in the next plant generations. Despite the progress in the study
Evgeny Bakin +7 more
doaj +2 more sources
Analysis of conserved microRNAs in floral tissues of sexual and apomictic
BMC Genomics, 2011 Background Apomixis or asexual seed formation represents a potentially important agronomic trait whose introduction into crop plants could be an effective way to fix and perpetuate a desirable genotype through successive seed generations.
Vogel Heiko +3 more
doaj +5 more sources
Sex- versus apomixis-specific polymorphisms in the 5′UTR of APOLLO from Boechera shift gene expression from somatic to reproductive tissues in Arabidopsis [PDF]
Frontiers in Plant ScienceIntroductionAmong candidate genes underlying the control components of apomixis, APOLLO is known for its strong linkage to apomeiosis in the genus Boechera.
Maryam Honari +2 more
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Natural quantitative genetic variance in plant growth differs in response to ecologically relevant temperature heterogeneity [PDF]
Ecology and Evolution, 2016 Adaptation to large‐scale spatial heterogeneity in the environment accounts for a major proportion of genetic diversity within species. Theory predicts the erosion of adaptive genetic variation on a within‐population level, but considerable genetic ...
Matti J. Salmela +2 more
doaj +2 more sources
Apospory and Diplospory in Diploid Boechera (Brassicaceae) May Facilitate Speciation by Recombination-Driven Apomixis-to-Sex Reversals [PDF]
Frontiers in Plant Science, 2019 Apomixis (asexual seed formation) in angiosperms occurs either sporophytically, through adventitious embryony, or gametophytically, where an unreduced female gametophyte (embryo sac) forms and produces an unreduced egg that develops into an embryo ...
John G. Carman +15 more
doaj +3 more sources
A comparison of 16S rRNA-gene and 16S rRNA-transcript derived microbial communities in bulk and rhizosphere soils [PDF]
Frontiers in MicrobiologyRoot exudates in a plant’s rhizosphere alters microbial community membership and activity, which can in turn alter a plant’s health and fitness. In this study we characterized bacterial community composition, using 16S rRNA-gene (DNA) sequencing to ...
Alessandra Ceretto +4 more
doaj +2 more sources
Chromosomal Evolution and Apomixis in the Cruciferous Tribe Boechereae [PDF]
Frontiers in Plant Science, 2020 The mustard family (Brassicaceae) comprises several dozen monophyletic clades usually ranked as tribes. The tribe Boechereae plays a prominent role in plant research due to the incidence of apomixis and its close relationship to Arabidopsis.
Terezie Mandáková +7 more
doaj +3 more sources