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Annals of Botany

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https://www.readbyqxmd.com/read/28203721/importance-of-whole-plant-biomass-allocation-and-reproductive-timing-to-habitat-differentiation-across-the-north-american-sunflowers
#1
Chase M Mason, Eric W Goolsby, Kaleigh E Davis, Devon V Bullock, Lisa A Donovan
No abstract text is available yet for this article.
February 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28200109/identifying-seedling-root-architectural-traits-associated-with-yield-and-yield-components-in-wheat
#2
Quan Xie, Kurukulasuriya M C Fernando, Sean Mayes, Debbie L Sparkes
No abstract text is available yet for this article.
February 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28160464/predicting-habitat-affinities-of-herbaceous-dicots-to-soil-wetness-based-on-physiological-traits-of-drought-tolerance
#3
Michaël Belluau, Bill Shipley
No abstract text is available yet for this article.
February 4, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28159988/increased-fire-frequency-promotes-stronger-spatial-genetic-structure-and-natural-selection-at-regional-and-local-scales-in-pinus-halepensis-mill
#4
Katharina B Budde, Santiago C González-Martínez, Miguel Navascués, Concetta Burgarella, Elena Mosca, Zaida Lorenzo, Mario Zabal-Aguirre, Giovanni G Vendramin, Miguel Verdú, Juli G Pausas, Myriam Heuertz
No abstract text is available yet for this article.
February 4, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28158449/stomatal-cell-wall-composition-distinctive-structural-patterns-associated-with-different-phylogenetic-groups
#5
Ilana Shtein, Yaniv Shelef, Ziv Marom, Einat Zelinger, Amnon Schwartz, Zoë A Popper, Benny Bar-On, Smadar Harpaz-Saad
No abstract text is available yet for this article.
January 31, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28158409/nectar-replenishment-maintains-the-neutral-effects-of-nectar-robbing-on-female-reproductive-success-of-salvia-przewalskii-lamiaceae-a-plant-pollinated-and-robbed-by-bumble-bees
#6
Zhong-Ming Ye, Xiao-Fang Jin, Qing-Feng Wang, Chun-Feng Yang, David W Inouye
No abstract text is available yet for this article.
January 31, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28137705/on-the-allopolyploid-origin-and-genome-structure-of-the-closely-related-species-hordeum-secalinum-and-hordeum-capense-inferred-by-molecular-karyotyping
#7
Ángeles Cuadrado, Alfredo de Bustos, Nicolás Jouve
BACKGROUND AND AIMS: To provide additional information to the many phylogenetic analyses conducted within Hordeum, here the origin and interspecific affinities of the allotetraploids Hordeum secalinum and Hordeum capense were analysed by molecular karyotyping. METHODS: Karyotypes were determined using genomic in situ hybridization (GISH) to distinguish the sub-genomes XA: and I: , plus fluorescence in situ hybridization (FISH)/non-denaturing (ND)-FISH to determine the distribution of ten tandem repetitive DNA sequences and thus provide chromosome markers...
January 30, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28137704/pollen-tube-access-to-the-ovule-is-mediated-by-glycoprotein-secretion-on-the-obturator-of-apple-malus-%C3%A3-domestica-borkh
#8
Juan M Losada, Maria Herrero
BACKGROUND AND AIMS: Within the ovary, the obturator bridges the pathway of the pollen tube from the style to the ovule. Despite its widespread presence among flowering plants, its function has only been studied in a handful of species, and the molecules involved in pollen tube-obturator cross-talk have not been explored hitherto. This work evaluates the involvement of glucans and glycoproteins on pollen tube growth in the obturator of apple flowers (Malus × domestica) METHODS: Pollen tube kinetics were sequentially examined in the pistil and related to changes occurring on the obturator using histochemistry and inmunocytochemistry...
January 29, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28130222/genetic-analyses-of-the-inheritance-and-expressivity-of-autonomous-endosperm-formation-in-hieracium-with-different-modes-of-embryo-sac-and-seed-formation
#9
Steven T Henderson, Susan D Johnson, Joel Eichmann, Anna M G Koltunow
BACKGROUND AND AIMS: Apomixis, or asexual seed formation, in polyploid Hieracium subgenus Pilosella species results in clonal progeny with a maternal genotype. An aposporous embryo sac forms mitotically from a somatic cell, without prior meiosis, while embryo and endosperm formation is fertilization independent (autonomous). The latter two developmental components are tightly linked in Hieracium Recently, two plants, AutE196 and AutE24, were identified from two different crosses. Both form embryo sacs via the sexual route by undergoing meiosis, and embryo development requires fertilization; however, 18 % of embryo sacs can undergo autonomous endosperm (AutE) formation...
January 27, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28130221/gene-expression-analysis-in-musa-acuminata-during-compatible-interactions-with-meloidogyne-incognita
#10
Nancy Eunice Niño Castañeda, Gabriel Sergio Costa Alves, Rosane Mansan Almeida, Edson Perito Amorim, Claudia Fortes Ferreira, Roberto Coiti Togawa, Marcos Mota Do Carmo Costa, Priscila Grynberg, Jansen Rodrigo Pereira Santos, Juvenil Enrique Cares, Robert Neil Gerard Miller
BACKGROUND AND AIMS: Endoparasitic root-knot nematodes (RKNs) (Meloidogyne spp.) cause considerable losses in banana (Musa spp.), with Meloidogyne incognita a predominant species in Cavendish sub-group bananas. This study investigates the root transcriptome in Musa acuminata genotypes 4297-06 (AA) and Cavendish Grande Naine (CAV; AAA) during early compatible interactions with M. incognita METHODS: Roots were analysed by brightfield light microscopy over a 35 d period to examine nematode penetration and morphological cell transformation...
January 27, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28130220/how-does-climate-influence-xylem-morphogenesis-over-the-growing-season-insights-from-long-term-intra-ring-anatomy-in-picea-abies
#11
Daniele Castagneri, Patrick Fonti, Georg von Arx, Marco Carrer
BACKGROUND AND AIMS: During the growing season, the cambium of conifer trees produces successive rows of xylem cells, the tracheids, that sequentially pass through the phases of enlargement and secondary wall thickening before dying and becoming functional. Climate variability can strongly influence the kinetics of morphogenetic processes, eventually affecting tracheid shape and size. This study investigates xylem anatomical structure in the stem of Picea abies to retrospectively infer how, in the long term, climate affects the processes of cell enlargement and wall thickening...
January 27, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28119293/nutrient-foraging-strategies-are-associated-with-productivity-and-population-growth-in-forest-shrubs
#12
Joshua S Caplan, Bram W G Stone, Cara A Faillace, Jonathan J Lafond, Joni M Baumgarten, Thomas J Mozdzer, John Dighton, Scott J Meiners, Jason C Grabosky, Joan G Ehrenfeld
BACKGROUND AND AIMS: Temperate deciduous forest understoreys are experiencing widespread changes in community composition, concurrent with increases in rates of nitrogen supply. These shifts in plant abundance may be driven by interspecific differences in nutrient foraging (i.e. conservative vs. acquisitive strategies) and, thus, adaptation to contemporary nutrient loading conditions. This study sought to determine if interspecific differences in nutrient foraging could help explain patterns of shrub success and decline in eastern North American forests...
January 23, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28115317/demographic-stability-and-high-historical-connectivity-explain-the-diversity-of-a-savanna-tree-species-in-the-quaternary
#13
Jacqueline S Lima, Mariana P C Telles, Lázaro J Chaves, Matheus S Lima-Ribeiro, Rosane G Collevatti
BACKGROUND AND AIMS: Cyclic glaciations were frequent throughout the Quaternary and this affected species distribution and population differentiation worldwide. The present study reconstructed the demographic history and dispersal routes of Eugenia dysenterica lineages and investigated the effects of Quaternary climate change on its spatial pattern of genetic diversity. METHODS: A total of 333 individuals were sampled from 23 populations and analysed by sequencing four regions of the chloroplast DNA and the internal transcribed spacer of the nuclear DNA...
January 23, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28110268/metabolic-and-physiological-adjustment-of-suaeda-maritima-to-combined-salinity-and-hypoxia
#14
Jan H Behr, Alain Bouchereau, Solenne Berardocco, Charlotte E Seal, Timothy J Flowers, Christian Zörb
BACKGROUND AND AIMS: Suaeda maritima is a halophyte commonly found on coastal wetlands in the intertidal zone. Due to its habitat S. maritima has evolved tolerance to high salt concentrations and hypoxic conditions in the soil caused by periodic flooding. In the present work, the adaptive mechanisms of S. maritima to salinity combined with hypoxia were investigated on a physiological and metabolic level. METHODS: To compare the adaptive mechanisms to deficient, optimal and stressful salt concentrations, S...
January 20, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28110267/ceratopetalum-cunoniaceae-fruits-of-australasian-affinity-from-the-early-eocene-laguna-del-hunco-flora-patagonia-argentina
#15
REVIEW
María A Gandolfo, Elizabeth J Hermsen
BACKGROUND AND AIMS: Radially symmetrical, five-winged fossil fruits from the highly diverse early Eocene Laguna del Hunco flora of Chubut Province, Patagonia, Argentina, are named, described and illustrated. The main goals are to assess the affinities of the fossils and to place them in an evolutionary, palaeoecological and biogeographic context. METHODS: Specimens of fossil fruits were collected from the Tufolitas Laguna del Hunco. They were prepared, photographed and compared with similar extant and fossil fruits using published literature...
January 20, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28110266/dioecy-in-amborella-trichopoda-evidence-for-genetically-based-sex-determination-and-its-consequences-for-inferences-of-the-breeding-system-in-early-angiosperms
#16
Nicolas Anger, Bruno Fogliani, Charles P Scutt, Gildas Gâteblé
BACKGROUND AND AIMS: This work aimed to gain insight into the breeding system at the base of living angiosperms through both character state reconstructions and the study of sex ratios and phenotypes in the likely sister to all other living angiosperms, Amborella trichopoda METHODS: Sex phenotypes were mapped onto a phylogeny of basally diverging angiosperms using maximum parsimony. In parallel, sex ratios and phenotypes were studied over two consecutive flowering seasons in an ex situ population of A...
January 20, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28088765/allo-allo-triploid-sphagnum-%C3%A3-falcatulum-single-individuals-contain-most-of-the-holantarctic-diversity-for-ancestrally-indicative-markers
#17
Eric F Karlin, Peter E Smouse
BACKGROUND AND AIMS: Allopolyploids exhibit both different levels and different patterns of genetic variation than are typical of diploids. However, scant attention has been given to the partitioning of allelic information and diversity in allopolyploids, particularly that among homeologous monoploid components of the hologenome. Sphagnum × falcatulum is a double allopolyploid peat moss that spans a considerable portion of the Holantarctic. With monoploid genomes from three ancestral species, this organism exhibits a complex evolutionary history involving serial inter-subgeneric allopolyploidizations...
January 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28087660/the-morphophysiological-dormancy-in-amborella-trichopoda-seeds-is-a-pleisiomorphic-trait-in-angiosperms
#18
Bruno Fogliani, Gildas Gâteblé, Matthieu Villegente, Isabelle Fabre, Nicolas Klein, Nicolas Anger, Carol C Baskin, Charlie P Scutt
BACKGROUND AND AIMS: Recent parsimony-based reconstructions suggest that seeds of early angiosperms had either morphophysiological or physiological dormancy, with the former considered as more probable. The aim of this study was to determine the class of seed dormancy present in Amborella trichopoda, the sole living representative of the most basal angiosperm lineage Amborellales, with a view to resolving fully the class of dormancy present at the base of the angiosperm clade. METHODS: Drupes of A...
January 13, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28087659/plant-parasitic-nematodes-towards-understanding-molecular-players-in-stress-responses
#19
REVIEW
François-Xavier Gillet, Caroline Bournaud, Jose Dijair Antonino de Souza Júnior, Maria Fatima Grossi-de-Sa
BACKGROUND: Plant-parasitic nematode interactions occur within a vast molecular plant immunity network. Following initial contact with the host plant roots, plant-parasitic nematodes (PPNs) activate basal immune responses. Defence priming involves the release in the apoplast of toxic molecules derived from reactive species or secondary metabolism. In turn, PPNs must overcome the poisonous and stressful environment at the plant-nematode interface. The ability of PPNs to escape this first line of plant immunity is crucial and will determine its virulence...
January 13, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28087663/evolution-and-structural-diversification-of-nictaba-like-lectin-genes-in-food-crops-with-a-focus-on-soybean-glycine-max
#20
Sofie Van Holle, Pierre Rougé, Els J M Van Damme
BACKGROUND AND AIMS: The Nictaba family groups all proteins that show homology to Nictaba, the tobacco lectin. So far, Nictaba and an Arabidopsis thaliana homologue have been shown to be implicated in the plant stress response. The availability of more than 50 sequenced plant genomes provided the opportunity for a genome-wide identification of Nictaba-like genes in 15 species, representing members of the Fabaceae, Poaceae, Solanaceae, Musaceae, Arecaceae, Malvaceae and Rubiaceae. Additionally, phylogenetic relationships between the different species were explored...
January 12, 2017: Annals of Botany
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