annals-of-botany
Inbreeding and outbreeding depression in Grevillea
For many Australian plants little is known about either their population genetics or the effects on mating systems of variation in pollen transfer distances. Forrest et
annals-of-botany
Tetraploidization in apomictic citrus
The gene pool of Citrus and related genera of Aurantioideae is essentially diploid but tetraploid plants are frequently encountered in seedlings of diploid apomictic genotypes. Aleza
annals-of-botany
Vegetation structure and invasibility of arctic tundra
Plant productivity and the cover of shrubs, grasses and dead plant material in arctic tundra are predicted to increase and the cover of bryophytes to decrease
annals-of-botany
Juvenility and flowering of Brunonia and Calandrinia
The time at which plants are transferred to floral-inductive conditions affects the onset of flowering and plant morphology, due to juvenility. Cave et al. show
annals-of-botany
Epicotyl dormancy in Viburnum seeds
Seeds of many Viburnum species have epicotyl dormancy, but little is known about the temperature requirements for radicle and shoot emergennce. Chien et al. incubate fresh
annals-of-botany
Functional significance of style length in Mertensia
Mertensia fusiformis (Boraginaceae) is a spring-flowering perennial showing pronounced intraspecific variation in style length and stigma–anther separation. Forrest et al. show that population-level
annals-of-botany
Turnover of foliar N absorbed at different times
Although nitrogen turnover within plants has been studied intensively, the fate of N absorbed at different times and particularly over winter is not completely understood. Ueda
annals-of-botany
ERECTA gene and leaf cellular development
<i>ERECTA</i> gene and leaf cellular development The ERECTA gene plays a role in the balance between epidermal cell expansion and
annals-of-botany
Cultivation and domestication of wild pea
Wild pea seed dormancy is mediated by a water-impermeable seed coat. Using wild and domesticated pea (Pisum elatius, P. humile and P. fulvum), Abbo et
annals-of-botany
Evolution of oil-producing trichomes in Sisyrinchium
Flowers offering oil rewards to pollinators have evolved several times within Iridaceae, and oil-producing structures are particularly widespread in Sisyrinchium. Chauveau et al. conduct phylogenetic
annals-of-botany
Is the moss calyptra covered by a cuticle?
Over a century ago, the gametophytic calyptra was predicted to be covered by a cuticle that protects the sporophyte apex from desiccation. Budke et al. examine
annals-of-botany
Pollination shift in Neotropical Malpighiaceae
Pollination shift in Neotropical Malpighiaceae Flowers of Neotropical Malpighiaceae have a specialized pollination system in which floral oils instead of nectar are offered to attract oil-