Abstract:
BACKGROUND AND AIMS:Sexual dimorphism in morphology, physiology or life history traits is common in dioecious plants at reproductive maturity, but it is typically inconspicuous or absent in juveniles. Although plants of different sexes probably begin to diverge in gene expression both before their reproduction commences and before dimorphism becomes readily apparent, to our knowledge transcriptome-wide differential gene expression has yet to be demonstrated for any angiosperm species. METHODS:The present study documents differences in gene expression in both above- and below-ground tissues of early pre-reproductive individuals of the wind-pollinated dioecious annual herb, Mercurialis annua, which otherwise shows clear sexual dimorphism only at the adult stage. KEY RESULTS:Whereas males and females differed in their gene expression at the first leaf stage, sex-biased gene expression peaked just prior to, and after, flowering, as might be expected if sexual dimorphism is partly a response to differential costs of reproduction. Sex-biased genes were over-represented among putative sex-linked genes in M. annua but showed no evidence for more rapid evolution than unbiased genes. CONCLUSIONS:Sex-biased gene expression in M. annua occurs as early as the first whorl of leaves is produced, is highly dynamic during plant development and varies substantially between vegetative tissues.
journal_name
Ann Botjournal_title
Annals of botanyauthors
Cossard GG,Toups MA,Pannell JRdoi
10.1093/aob/mcy183subject
Has Abstractpub_date
2019-07-08 00:00:00pages
1119-1131issue
7eissn
0305-7364issn
1095-8290pii
5115552journal_volume
123pub_type
杂志文章相关文献
ANNALS OF BOTANY文献大全abstract:Background and Aims:Within-plant spatial heterogeneity in the production of and demand for assimilates may have major implications for the formation of fruits. Spatial heterogeneity is related to organ age, but also to position on the plant. This study quantifies the variation in local carbohydrate availability for the...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcx210
更新日期:2018-04-18 00:00:00
abstract:BACKGROUND:Low phosphorus (P) availability is a major constraint to soybean growth and production. Developing P-efficient soybean varieties that can efficiently utilize native P and added P in the soils would be a sustainable and economical approach to soybean production. SCOPE:This review summarizes the possible mech...
journal_title:Annals of botany
pub_type: 杂志文章,评审
doi:10.1093/aob/mcq029
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND AND AIMS:Our aim was to understand the environmental conditions of the emergence and radiation of early angiosperms. Such a question has long remained controversial because various approaches applied in the past have drawn conflicting images of early angiosperm ecology. METHODS:We provided a new perspective...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcz131
更新日期:2020-01-08 00:00:00
abstract::Water relations and photosynthetic characteristics of plants of Lycium nodosum grown under increasing water deficit (WD), saline spray (SS) or saline irrigation (SI) were studied. Plants of this perennial, deciduous shrub growing in the coastal thorn scrubs of Venezuela show succulent leaves which persist for approx. ...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcg199
更新日期:2003-12-01 00:00:00
abstract:BACKGROUND AND AIMS:Induction of dehydration tolerance is a key to achieving high survival rates in cryopreservation of plant specimens. It has been reported previously that two-step preculturing with sucrose effectively increased desiccation tolerance in axillary buds of gentian (Gentiana scabra), which allow the buds...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcl054
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:The Annals of Botany is a peer-reviewed scientific journal publishing papers on a wide range of topics in plant biology. It first appeared in 1887, making it the oldest continuously published botanical title. The present article gives a historical account of events leading to the founding of the Journal and ...
journal_title:Annals of botany
pub_type: 历史文章,杂志文章
doi:10.1093/aob/mcu220
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND AND AIMS:The leaf anatomy and ultrastructure of Deschampsia antarctica (Poaceae) plants growing in three different habitats (a dry site in the Antarctic tundra, a wet site in a zone exposed to sea spray and a greenhouse) were investigated. The ultrastructure of the leaves of D. antarctica has not been studie...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mci262
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:Robustness to genetic and environmental perturbation is a salient feature of multicellular organisms. Loss of developmental robustness can lead to severe phenotypic defects and fitness loss. However, perfect robustness, i.e. no variation at all, is evolutionarily unfit as organisms must be able to change phe...
journal_title:Annals of botany
pub_type: 杂志文章,评审
doi:10.1093/aob/mcv151
更新日期:2016-04-01 00:00:00
abstract:AIMS AND BACKGROUND:While the temperature response of soil respiration (R(S)) has been well studied, the partitioning of heterotrophic respiration (R(H)) by soil microbes from autotrophic respiration (R(A)) by roots, known to have distinct temperature sensitivities, has been problematic. Further complexity stems from t...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcs073
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND AND AIMS:Species and hybrids of the genus Miscanthus contain attributes that make them front-runners among current selections of dedicated bioenergy crops. A key trait for plant biomass conversion to biofuels and biomaterials is cell-wall quality; however, knowledge of cell-wall composition and biology in Mi...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcu054
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND AND AIMS:Stigmatic receptivity plays a clear role in pollination dynamics; however, little is known about the factors that confer to a stigma the competence to be receptive for the germination of pollen grains. In this work, a developmental approach is used to evaluate the acquisition of stigmatic receptivit...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcs116
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND AND AIMS:Rhinanthus minor is a root hemiparasitic plant that attacks a wide range of host species which are severely damaged by the parasite. Rhinanthus minor also attempts unsuccessfully to form connections to a range of non-hosts which in contrast are not damaged by the parasite; however, the underlying ph...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcl218
更新日期:2006-12-01 00:00:00
abstract:Background and Aims:Long terminal repeat-retrotransposons (LTR-RTs) comprise a large portion of plant genomes, with massive repeat blocks distributed across the chromosomes. Eleocharis species have holocentric chromosomes, and show a positive correlation between chromosome numbers and the amount of nuclear DNA. To eval...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcy066
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND AND AIMS:Pea (Pisum sativum) primary roots form long vascular cavities when grown under wet or flooded conditions at 25 degrees C. It is thought that the cavities are a form of aerenchyma. At 25 degrees C short roots continue to grow after flooding. After roots reach 10 cm long flooding causes rapid cessatio...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcl040
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND AND AIMS:Concomitant increases in O(2) and irradiance upon de-submergence can cause photoinhibition and photo-oxidative damage to the photosynthetic apparatus of plants. As energy and carbohydrate supply from photosynthesis is needed for growth, it was hypothesized that post-submergence growth recovery may r...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcp257
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND AND AIMS:Preliminary field observations in 2001 and 2002 suggested that Kingdonia uniflora (Circaeasteraceae, Ranunculales) exhibits heterodichogamy, an unusual kind of reproductive heteromorphy, hitherto unreported in Ranunculales and known from only one other genus in basal eudicots. METHODS:During severa...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcs041
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND AND AIMS:Apomictic plants maintain functional pollen, and via pollination the genetic factors controlling apomixis can be potentially transferred to congeneric sexual populations. In contrast, the sexual individuals do not fertilize apomictic plants which produce seeds without fertilization of the egg cells....
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcp093
更新日期:2009-07-01 00:00:00
abstract::Columella cells of seedlings of Zea mays L. cv. Bear Hybrid grown in the microgravity of orbital flight allocate significantly larger relative-volumes to hyaloplasm and lipid bodies, and significantly smaller relative-volumes to dictyosomes, plastids, and starch than do columella cells of seedlings grown at 1 g. The...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/oxfordjournals.aob.a087926
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND AND AIMS:The process of vascular development in plants results in the formation of a specific array of bundles that run throughout the plant in a characteristic spatial arrangement. Although much is known about the genes involved in the specification of procambium, phloem and xylem, the dynamic processes and...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcu074
更新日期:2014-09-01 00:00:00
abstract:Background and Aims:Interstitial telomeric repeat (ITR) sites, consisting of tandem repeats of telomeric motifs localized at intrachromosomal sites, have been reported in a few unrelated organisms including plants. However, the causes for the occurrence of ITRs outside of the chromosomal termini are not fully understoo...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcy079
更新日期:2018-08-27 00:00:00
abstract:BACKGROUND AND AIMS:Floral nectar concentration and chemical composition of 26 plant species native to the temperate forest of southern South America are reported and the relationships with the flower type are evaluated. METHODS:Nectar concentration was measured with a hand refractometer and sugar composition was anal...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcj043
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND AND AIMS:The ability of plant lineages to reach all continents contributes substantially to their evolutionary success. This is exemplified by the Poaceae, one of the most successful angiosperm families, in which most higher taxa (tribes, subfamilies) have global distributions. Due to the old age of the ocea...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcu047
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND AND AIMS:By the year 2100, atmospheric CO2 concentration ([CO2]a) could reach 800 ppm, having risen from ~200 ppm since the Neogene, beginning ~24 Myr ago. Changing [CO2]a affects plant carbon-water balance, with implications for growth, drought tolerance and vegetation shifts. The evolution of C4 photosynth...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcz048
更新日期:2019-08-02 00:00:00
abstract:BACKGROUND AND AIMS:Buzz pollination involves explosive pollen release in response to vibration, usually by bees. The mechanism of pollen release is poorly understood, and it is not clear which component of vibration (acceleration, frequency, displacement or velocity) is critical; the role of buzz frequency has been pa...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcu195
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND AND AIMS:Digestive structures of carnivorous plants produce external digestive enzymes, and play the main role in absorption. In Lentibulariaceae, the ultrastructure of digestive hairs has been examined in some detail in Pinguicula and Utricularia, but the sessile digestive hairs of Genlisea have received ve...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcm109
更新日期:2007-08-01 00:00:00
abstract::Background and Aims Morphological variation in light-foraging strategies potentially plays important roles in efficient light utilization and carbon assimilation in spatially and temporally heterogeneous environments such as tropical moist forest understorey. By considering a suite of morphological traits at various h...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcw140
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND AND AIMS:Theory for optimal allocation of foliar nitrogen (ONA) predicts that both nitrogen concentration and photosynthetic capacity will scale linearly with gradients of insolation within plant canopies. ONA is expected to allow plants to efficiently use both light and nitrogen. However, empirical data gen...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcn265
更新日期:2009-03-01 00:00:00
abstract:Background:Quiescence is a fundamental feature of plant life, which enables plasticity, renewal and fidelity of the somatic cell line. Cellular quiescence is defined by arrest in a particular phase of the cell cycle, typically G1 or G2; however, the regulation of quiescence and proliferation can also be considered acro...
journal_title:Annals of botany
pub_type: 杂志文章,评审
doi:10.1093/aob/mcx082
更新日期:2017-10-17 00:00:00
abstract::Clematis flammula var. maritima is a woody lianoid plant that grows on coastal sand dunes in the Mediterranean region. Older perennial stems are present as extensive underground axes. These generate surface growth of shorter-lived stems producing monospecific trellises above the surface of the sand. Despite its sand d...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcg044
更新日期:2003-03-01 00:00:00
abstract:Background and Aims:Silicon has been proven to exert beneficial effects on plant growth and stress tolerance, and silicon accumulation varies among different plant species. Cucumber (Cucumis sativus) is a widely used dicot model for silicon accumulation, but little is known about the molecular mechanism of its silicon ...
journal_title:Annals of botany
pub_type: 杂志文章
doi:10.1093/aob/mcy103
更新日期:2018-09-24 00:00:00