Chloroplast microsatellite primers for cacao (Theobroma cacao) and other Malvaceae.

abstract：:Cladistic parsimony analyses of rbcL nucleotide sequence data from 171 taxa representing nearly all tribes and subtribes of Orchidaceae are presented here. These analyses divide the family into five primary monophyletic clades: apostasioid, cypripedioid, vanilloid, orchidoid, and epidendroid orchids, arranged in that ...

journal_title：American journal of botany

authors： Cameron KM,Chase MW,Whitten WM,Kores PJ,Jarrell DC,Albert VA,Yukawa T,Hills HG,Goldman DH

更新日期：1999-02-01 00:00:00

abstract：PREMISE:Closely related species occurring in sympatry may experience the negative consequences of interspecific pollen transfer if reproductive isolation (RI) barriers are not in place. We evaluated the importance of pre- and post-pollination RI barriers in three sympatric species of Achimenes (Gesneriaceae), including...

journal_title：American journal of botany

authors： Ramírez-Aguirre E,Martén-Rodríguez S,Quesada-Avila G,Quesada M,Martínez-Díaz Y,Oyama K,Espinosa-García FJ

更新日期：2019-07-01 00:00:00

abstract：:Light propagation and distribution inside leaves have been recognized as important processes influencing photosynthesis. Monochromatic light absorption across the mesophyll was measured using chlorophyll fluorescence generated from illumination of the cut edge (epi-illumination), as well as the adaxial or abaxial surf...

journal_title：American journal of botany

authors： Johnson DM,Smith WK,Vogelmann TC,Brodersen CR

更新日期：2005-09-01 00:00:00

abstract：:We examined the effects of size and spatial isolation of fens on the isozyme variability of 17 populations of Swertia perennis. This long-lived perennial is a locally abundant fen specialist in Switzerland, where wetlands have been strongly fragmented. Isozyme variability was comparable to other outcrossing plants (A ...

journal_title：American journal of botany

authors： Lienert J,Fischer M,Schneller J,Diemer M

更新日期：2002-05-01 00:00:00

abstract：:Dispersal is an important life history component. Seed settling velocity may be a useful surrogate for the measurement of dispersal ability in wind-dispersed plants, particularly those whose seeds have plumose dispersal structures. I measured settling velocities on seeds of eight species of Asteraceae, including annua...

journal_title：American journal of botany

authors： Andersen MC

更新日期：1992-10-01 00:00:00

abstract：:Gregor Mendel was a 19(th) century priest and botanist who developed the fundamental laws of inheritance. The year 2000 marked a century since the rediscovery of those laws and the beginning of genetics. Although Mendel is now recognized as the founder of genetics, significant controversy ensued about his work through...

journal_title：American journal of botany

authors： Fairbanks DJ,Rytting B

更新日期：2001-05-01 00:00:00

abstract：:Gas exchange was measured in two subalpine herbs during alternating periods of sun and shade that simulated natural cloud patterns. Stomatal conductance (g) in the subalpine herb Helianthella quinquenervis was reduced by as much as 75% during 5-min shade periods that ranged in photosynthetic photon flux density (PPFD)...

journal_title：American journal of botany

authors： Knapp AK,Smith WK

更新日期：1990-02-01 00:00:00

abstract：:The fresh weights of suspension cultures of pear (Pyrus communis) and quince (Cydonia oblonga) increased exponentially for 30 to 40 days after subculturing. Transferring pear cultures to media in which quince cultures had grown for 10 days resulted in a 70% inhibition of callus growth. Transferring quince cultures to ...

journal_title：American journal of botany

authors： Moore R

更新日期：1986-01-01 00:00:00

abstract：PREMISE OF THE STUDY:Microsatellite loci were developed for the endangered species Pityopsis ruthii and will permit genetic and conservation studies of the species. METHODS AND RESULTS:A microsatellite-enriched library was used to develop 12 polymorphic microsatellite loci for P. ruthii. The loci amplified perfect and...

journal_title：American journal of botany

authors： Wadl PA,Dattilo AJ,Scheffler BE,Trigiano RN

更新日期：2011-12-01 00:00:00

abstract：UNLABELLED: PREMISE OF THE STUDY:Most studies on orchid hybrids examine separately the effects of hybridization on interactions with pollinators or with mycorrhizal fungi. Here, we simultaneously investigated both interactions in the mediterranean food-deceptive Orchis simia, O. anthropophora, and their hybrid (O. ×be...

journal_title：American journal of botany

authors： Schatz B,Geoffroy A,Dainat B,Bessière JM,Buatois B,Hossaert-McKey M,Selosse MA

更新日期：2010-08-01 00:00:00

abstract：PREMISE:Polyploidy may serve to contribute to range size if autopolyploid cytotypes are adapted to differing ecological conditions. This study aims to establish the geographic distribution of cytotypes within the giant goldenrod (Solidago gigantea), and to assess whether cytotypes exhibit differing ecological tolerance...

journal_title：American journal of botany

authors： Martino M,Semple JC,Beck JB

更新日期：2020-11-01 00:00:00

abstract：PREMISE:Within closed-canopy forests, vertical gradients of light and atmospheric CO2 drive variations in leaf carbon isotope ratios, leaf mass per area (LMA), and the micromorphology of leaf epidermal cells. Variations in traits observed in preserved or fossilized leaves could enable inferences of past forest canopy c...

journal_title：American journal of botany

authors： Cheesman AW,Duff H,Hill K,Cernusak LA,McInerney FA

更新日期：2020-08-01 00:00:00

abstract：PREMISE OF THE STUDY:Subtribe Hakeinae (526 spp.) represents a large Australian plant radiation central to our understanding of that flora's evolution and ecology. It contains Grevillea-the third largest plant genus in Australia and a group inferred to have among the highest diversification rates in the angiosperms. Ho...

journal_title：American journal of botany

authors： Mast AR,Olde PM,Makinson RO,Jones E,Kubes A,Miller ET,Weston PH

更新日期：2015-10-01 00:00:00

abstract：:We examined the function of floral traits associated with buzz pollination through studies of Rhexia virginica (Melastomataceae) in the Muskoka region of Ontario, Canada. Controlled pollinations demonstrated that the species is self-compatible, but dependent on insects for pollen transfer. Bumble bees made 82 and 90% ...

journal_title：American journal of botany

authors： Larson BM,Barrett SC

更新日期：1999-04-01 00:00:00

abstract：:Plant xylem must balance efficient delivery of water to the canopy against protection from air entry into the conduits via air-seeding. We investigated the relationship between tracheid allometry, end wall pitting, safety from air-seeding, and the hydraulic efficiency of conifer wood in order to better understand the ...

journal_title：American journal of botany

authors： Pittermann J,Sperry JS,Hacke UG,Wheeler JK,Sikkema EH

更新日期：2006-09-01 00:00:00

abstract：UNLABELLED: PREMISE OF THE STUDY:Microsatellite loci were developed to characterize genetic variation and population subdivision in Khaya senegalensis (Desr.) A. Juss. (Meliaceae). • METHODS AND RESULTS:Microsatellite loci were identified from genomic DNA sequences generated using the 454 GS-FLX titanium platform. Pr...

journal_title：American journal of botany

authors： Sexton GJ,Frere CH,Dieters MJ,Godwin ID,Prentis PJ

更新日期：2010-11-01 00:00:00

abstract：:Seed and pollen morphology were studied by light microscopy and scanning electron microscopy in 39 North and Central American species of Houstonia (including Hedyotis, but excluding Oldenlandia). Chromosome counts were obtained for eight taxa, of which five lacked previous chromosome data. A chromosome number of n = 1...

journal_title：American journal of botany

authors： Terrell EE,Lewis WH,Robinson H,Nowicke JW

更新日期：1986-01-01 00:00:00

abstract：:Serpentine soils are a model system for the study of plant adaptation, speciation, and species interactions. Serpentine soil is an edaphically stressful, low productivity soil type that hosts stunted vegetation and a spectacular level of plant endemism. One of the first papers on serpentine plant endemism was by Arthu...

journal_title：American journal of botany

authors： Anacker BL

更新日期：2014-02-01 00:00:00

abstract：:The desert moss Syntrichia caninervis exhibits one of the most skewed sex ratios in the plant kingdom, with female individuals far outnumbering male individuals (exceeding 14♀:1♂). The "cost of sex hypothesis" derives from allocational theory and predicts that the sex which is most expensive should be the rarer sex. T...

journal_title：American journal of botany

authors： Stark LR,Mishler BD,McLetchie DN

更新日期：2000-11-01 00:00:00

abstract：:Competition and herbivory are ubiquitous environmental challenges that affect most plants. We examined the influence of phenotypic responses to either competition or herbivory on the subsequent response of the plants to the other factor. The stem-elongation response of Chenopodium album to light competition attenuated...

journal_title：American journal of botany

authors： Kurashige NS,Agrawal AA

更新日期：2005-01-01 00:00:00

abstract：UNLABELLED: PREMISE OF THE STUDY:Phenolic compounds exuded by roots have been implicated in allelopathic interactions among plants. Root enzymes that destroy phenolics may protect plants against allelopathic inhibition and thus may aid in invasiveness. Phenolic-degrading enzymes are chiefly found in aboveground plant ...

journal_title：American journal of botany

authors： Holzapfel C,Shahrokh P,Kafkewitz D

更新日期：2010-07-01 00:00:00

abstract：PREMISE OF THE STUDY:This paper investigates the occurrence and evolution of aluminum (Al) accumulation within ferns and lycophytes, which is characterized by Al concentrations above 1000 mg·kg-1 in aboveground plant tissues. We hypothesize that this feature is more common in ferns than in angiosperms, and potentially ...

journal_title：American journal of botany

authors： Schmitt M,Mehltreter K,Sundue M,Testo W,Watanabe T,Jansen S

更新日期：2017-04-01 00:00:00

abstract：:Additional information on the morphology of the vegetative ultimate branches of Archaeopteris roemeriana was obtained by uncovering compression specimens collected in Upper Devonian deposits in Belgium. For the first time, anisophylly, previously inferred from anatomical studies, is demonstrated on one species of the ...

journal_title：American journal of botany

authors： Fairon-Demaret M,Leponce I

更新日期：2001-04-01 00:00:00

abstract：PREMISE:Root-associated fungi provide a wide range of functions for their host plants, including nutrient provisioning, pathogen protection, and stress alleviation. In so doing, they can markedly influence host-plant structural and physiological traits, although the degree to which these effects vary within particular ...

journal_title：American journal of botany

authors： Hughes AR,Moore AFP,Gehring C

更新日期：2020-12-01 00:00:00

abstract：PREMISE OF STUDY:Although there is increasing recognition of the effects of plant intraspecific diversity on consumers, the mechanisms by which such effects cascade-up to higher trophic levels remain elusive. METHODS:We evaluated the effects of plant (lima bean, Phaseolus lunatus) intraspecific diversity on a suite of...

journal_title：American journal of botany

authors： Abdala-Roberts L,Hernández-Cumplido J,Chel-Guerrero L,Betancur-Ancona D,Benrey B,Moreira X

更新日期：2016-10-01 00:00:00

abstract：PREMISE OF THE STUDY:The classification of the genus Salix has historically been intrinsically difficult due to its propensity toward plasticity and high variation in diagnostic morphological characters. We investigated leaf epidermal characteristics, focusing on the stomatal apparatus because it may provide critical i...

journal_title：American journal of botany

authors： Ghahremaninejad F,Khalili Z,Maassoumi AA,Mirzaie-Nodoushan H,Riahi M

更新日期：2012-04-01 00:00:00

abstract：:Deciphering species relationships and hybrid origins in polyploid agamic species complexes is notoriously difficult. In this study of cheilanthoid ferns, we demonstrate increased resolving power for clarifying the origins of polyploid lineages by integrating evidence from a diverse selection of biosystematic methods. ...

journal_title：American journal of botany

authors： Grusz AL,Windham MD,Pryer KM

更新日期：2009-09-01 00:00:00

abstract：PREMISE OF THE STUDY:Anatomical and morphological features of Satanocrater were studied to test hypotheses of xeric adaptations in the genus, which is endemic to arid tropical Africa. These features, together with molecular data, were used to test the phylogenetic placement of Satanocrater within the large plant family...

journal_title：American journal of botany

authors： Tripp EA,Fatimah S

更新日期：2012-06-01 00:00:00

abstract：:The circumscription and relationships of genera within the tribe Melanthieae (29 representative taxa) were evaluated using parsimony analyses of ITS (nuclear ribosomal) and trnL-F (plastid) DNA sequence data, alone and in combination. Proposed new generic circumscriptions, strongly supported by the tree statistics and...

journal_title：American journal of botany

authors： Zomlefer WB,Williams NH,Whitten WM,Judd WS

更新日期：2001-09-01 00:00:00

abstract：UNLABELLED: PREMISE OF THE STUDY:Microsatellite markers were isolated and characterized in Mimulus ringens (Phrymaceae), a herbaceous wetland perennial, to facilitate studies of mating patterns and population genetic structure. • METHODS AND RESULTS:A total of 42 polymorphic loci were identified from a sample of 24 i...

journal_title：American journal of botany

authors： Nunziata SO,Karron JD,Mitchell RJ,Lance SL,Jones KL,Trapnell DW

更新日期：2012-12-01 00:00:00