Establishing the cell biology of apomictic reproduction in diploid Boechera stricta (Brassicaceae)
نویسندگان
چکیده
منابع مشابه
Searching for Diamonds in the Apomictic Rough: A Case Study Involving Boechera lignifera (Brassicaceae)
The genus Boechera is one of the most difficult species complexes in North America, with about 70 sexual diploids and hundreds of apomictic taxa representing diverse combinations of nearly every known sexual genome. In this study, we set out to clarify the taxonomy of Boechera lignifera, which currently includes a small number of sexual diploid populations in addition to the widespread apomicti...
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Abiotic and biotic conditions often vary continuously across the landscape, imposing divergent selection on local populations. We used a provenance trial approach to examine microgeographic variation in local adaptation in Boechera stricta (Brassicaceae), a perennial forb native to the Rocky Mountains. In montane ecosystems, environmental conditions change considerably over short spatial scales...
متن کاملPlasticity in functional traits in the context of climate change: a case study of the subalpine forb Boechera stricta (Brassicaceae).
Environmental variation often induces shifts in functional traits, yet we know little about whether plasticity will reduce extinction risks under climate change. As climate change proceeds, phenotypic plasticity could enable species with limited dispersal capacity to persist in situ, and migrating populations of other species to establish in new sites at higher elevations or latitudes. Alternat...
متن کاملDiploid apomicts of the Boechera holboellii complex display large-scale chromosome substitutions and aberrant chromosomes.
We conducted a cytogenetic study of sexual lines of Boechera stricta and Boechera holboellii (2n = 14) and seven diploid apomictic accessions of their interspecific hybrid Boechera divaricarpa and B. holboellii (2n = 14 or 15). By studying chromosome morphology, rDNA repeats, genome painting, male meiosis, pollen morphology, and flow-cytometry seed screens, we revealed an unexpected plethora of...
متن کاملEffects of Plant Stress on Facultative Apomixis in Boechera (Brassicaceae)
Effects of Plant Stress on Facultative Apomixis in Boechera (Brassicaceae)
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2018
ISSN: 0305-7364,1095-8290
DOI: 10.1093/aob/mcy114