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You searched for: Journal Annals of botany Remove constraint Journal: Annals of botany Publication Year 2011 Remove constraint Publication Year: 2011 Subject DNA Remove constraint Subject: DNA
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1. An evaluation of small-scale genetic diversity and the mating system in Zostera noltii on an intertidal sandflat in the Wadden Sea

Author:
Zipperle, Andreas M.; Coyer, James A.; Reise, Karsten; Stam, Wytze T.; Olsen, Jeanine L.
Source:
Annals of botany 2011 v.107 no.1 pp. 127-134
ISSN:
0305-7364
Subject:
microsatellite repeats; seed extracts; paternity; islands; loci; meadows; outcrossing; seeds; DNA; Zostera; selfing; systems analysis; clones; inbreeding; coasts; genetic variation; pollen; habitats; leaves; shoots
Abstract:
... BACKGROUND AND AIMS: The dwarf eelgrass, Zostera noltii, is a predominant inhabitant of soft-bottom intertidal regions along the coasts of northern Europe. It is a monoecious, protogynous angiosperm in which the potential for self-fertilization and inbreeding are high, especially if clone sizes exceed pollen dispersal distances. The aim of the present study was to determine the relationship betwee ...
DOI:
10.1093/aob/mcq214
PubMed:
21036695
PubMed Central:
PMC3002472

2. Diverse retrotransposon families and an AT-rich satellite DNA revealed in giant genomes of Fritillaria lilies

Author:
Ambrožová, Kateřina; Mandáková, Terezie; Bureš, Petr; Neumann, Pavel; Leitch, Ilia J.; Koblížková, Andrea; Macas, Jiří; Lysak, Martin A.
Source:
Annals of botany 2011 v.107 no.2 pp. 255-268
ISSN:
0305-7364
Subject:
DNA; Fritillaria; Lilium; clones; evolution; genome; heterochromatin; obesity; retrotransposons; satellite DNA; satellites; terminal repeat sequences; transposons; Eurasia; North America
Abstract:
... BACKGROUND AND AIMS: The genus Fritillaria (Liliaceae) comprises species with extremely large genomes (1C = 30 000-127 000 Mb) and a bicontinental distribution. Most North American species (subgenus Liliorhiza) differ from Eurasian Fritillaria species by their distinct phylogenetic position and increased amounts of heterochromatin. This study examined the contribution of major repetitive elements ...
DOI:
10.1093/aob/mcq235
PubMed:
21156758
PubMed Central:
PMC3025733

3. Elucidating the functional role of endoreduplication in tomato fruit development

Author:
Chevalier, Christian; Nafati, Mehdi; Mathieu-Rivet, Elodie; Bourdon, Matthieu; Frangne, Nathalie; Cheniclet, Catherine; Renaudin, Jean-Pierre; Gévaudant, Frédéric; Hernould, Michel
Source:
Annals of botany 2011 v.107 no.7 pp. 1159-1169
ISSN:
0305-7364
Subject:
DNA; Solanum lycopersicum; cell differentiation; cyclin-dependent kinase; early development; endopolyploidy; eukaryotic cells; fruiting; fruits; growth factors; mitosis; organogenesis; regulator genes; tomatoes
Abstract:
... BACKGROUND: Endoreduplication is the major source of endopolyploidy in higher plants. The process of endoreduplication results from the ability of cells to modify their classical cell cycle into a partial cell cycle where DNA synthesis occurs independently from mitosis. Despite the ubiquitous occurrence of the phenomenon in eukaryotic cells, the physiological meaning of endoreduplication remains v ...
DOI:
10.1093/aob/mcq257
PubMed:
21199834
PubMed Central:
PMC3091799

4. Floral heteromorphy in Primula vulgaris: progress towards isolation and characterization of the S locus

Author:
Li, Jinhong; Webster, Margaret A.; Smith, Matthew C.; Gilmartin, Philip M.
Source:
Annals of botany 2011 v.108 no.4 pp. 715-726
ISSN:
0305-7364
Subject:
sequence analysis; loci; bacterial artificial chromosomes; Primula vulgaris; linkage groups; DNA; expressed sequence tags; flowers; clones; genetic polymorphism; genetic markers; self-pollination
Abstract:
... BACKGROUND: The common primrose, Primula vulgaris, along with many other species of the Primulaceae, exhibits floral heteromorphy in which different individuals develop one of two possible forms of flower, known as pin and thrum. Both flower types are hermaphrodite and exhibit reciprocal positions of male and female reproductive structures, which together with a sporophytic incompatibility system, ...
DOI:
10.1093/aob/mcr181
PubMed:
21803742
PubMed Central:
PMC3170159

5. Flow cytometry confirms reticulate evolution and reveals triploidy in Central European Diphasiastrum taxa (Lycopodiaceae, Lycophyta)

Author:
Bennert, H. Wilfried; Horn, Karsten; Kauth, Marion; Fuchs, Jörg; Bisgaard Jakobsen, Iben Sophie; Øllgaard, Benjamin; Schnittler, Martin; Steinberg, Matthias; Viane, Ronnie
Source:
Annals of botany 2011 v.108 no.5 pp. 867-876
ISSN:
0305-7364
Subject:
backcrossing; Lycopodiaceae; gametophytes; diploidy; haploidy; hybrids; evolution; genome; DNA; parents; spores; flow cytometry; iodides; triploidy; ferns and fern allies; swarms; parentage; screening
Abstract:
... BACKGROUND AND AIMS: Interspecific Diphasiastrum hybrids have been assumed to be homoploid and to produce well-formed spores serving sexual reproduction. If this were the case, forms intermediate between hybrids and parents or hybrid swarms should be expected. The purpose of this study was: (1) to check whether homoploidy consistently applies to the three hybrids throughout their Central European ...
DOI:
10.1093/aob/mcr208
PubMed:
21835817
PubMed Central:
PMC3177684

6. Initiation of DNA replication: functional and evolutionary aspects

Author:
Bryant, John A.; Aves, Stephen J.
Source:
Annals of botany 2011 v.107 no.7 pp. 1119-1126
ISSN:
0305-7364
Subject:
Archaea; DNA; DNA replication; ancestry; cell cycle; chromatin; eukaryotic cells; evolution; gene duplication; genomics; plant hormones; plant response; replication origin; surveys; yeasts
Abstract:
... BACKGROUND: The initiation of DNA replication is a very important and highly regulated step in the cell division cycle. It is of interest to compare different groups of eukaryotic organisms (a) to identify the essential molecular events that occur in all eukaryotes, (b) to start to identify higher-level regulatory mechanisms that are specific to particular groups and (c) to gain insights into the ...
DOI:
10.1093/aob/mcr075
PubMed:
21508040
PubMed Central:
PMC3091809

7. Mycorrhizal associations and reproductive isolation in three closely related Orchis species

Author:
Jacquemyn, Hans; Brys, Rein; Cammue, Bruno P.A.; Honnay, Olivier; Lievens, Bart
Source:
Annals of botany 2011 v.107 no.3 pp. 347-356
ISSN:
0305-7364
Subject:
DNA; Orchis; field experimentation; gene flow; hybridization; hybrids; mature plants; mycorrhizal fungi; parents; progeny; reproductive isolation; seed germination; seedlings; seeds; symbionts; sympatry
Abstract:
... BACKGROUND AND AIMS: The maintenance of species boundaries in sympatric populations of closely related species requires some kind of reproductive isolation that limits gene flow among species and/or prevents the production of viable progeny. Because in orchids mycorrhizal fungi are needed for seed germination and subsequent seedling establishment, orchid-mycorrhizal associations may be involved in ...
DOI:
10.1093/aob/mcq248
PubMed:
21186239
PubMed Central:
PMC3043927

8. Nuclear DNA amounts in angiosperms: targets, trends and tomorrow

Author:
Bennett, M.D.; Leitch, I.J.
Source:
Annals of botany 2011 v.107 no.3 pp. 467-590
ISSN:
0305-7364
Subject:
sequence analysis; parasitic plants; buffers; plant architecture; chromosome number; DNA; biodiversity; flow cytometry; nuclear genome; flora; Angiospermae; databases
Abstract:
... BACKGROUND AND AIMS: The amount of DNA in an unreplicated gametic chromosome complement is known as the C-value and is a key biodiversity character of fundamental significance with many practical and predictive uses. Since 1976, Bennett and colleagues have assembled eight compilations of angiosperm C-values for reference purposes and subsequently these have been pooled into the Angiosperm DNA C-va ...
DOI:
10.1093/aob/mcq258
PubMed:
21257716
PubMed Central:
PMC3043933

9. Plant sexual reproduction during climate change: gene function in natura studied by ecological and evolutionary systems biology

Author:
Shimizu, Kentaro K.; Kudoh, Hiroshi; Kobayashi, Masaki J.
Source:
Annals of botany 2011 v.108 no.4 pp. 777-787
ISSN:
0305-7364
Subject:
Arabidopsis; DNA; climate change; epigenetics; extinction; flowering; genes; genomics; models; mutation; phenotypic plasticity; plant reproduction; prediction; risk; sexual reproduction; temperature
Abstract:
... BACKGROUND: It is essential to understand and predict the effects of changing environments on plants. This review focuses on the sexual reproduction of plants, as previous studies have suggested that this trait is particularly vulnerable to climate change, and because a number of ecologically and evolutionarily relevant genes have been identified. SCOPE: It is proposed that studying gene functions ...
DOI:
10.1093/aob/mcr180
PubMed:
21852275
PubMed Central:
PMC3170158

10. Proliferating cell nuclear antigen (PCNA): a key factor in DNA replication and cell cycle regulation

Author:
Strzalka, Wojciech; Ziemienowicz, Alicja
Source:
Annals of botany 2011 v.107 no.7 pp. 1127-1140
ISSN:
0305-7364
Subject:
post-translational modification; pseudogenes; protein structure; DNA replication; DNA; yeasts; eukaryotic cells; phylogeny; cell division; proliferating cell nuclear antigen; DNA repair; mammals; DNA-directed DNA polymerase; cohesion
Abstract:
... BACKGROUND: PCNA (proliferating cell nuclear antigen) has been found in the nuclei of yeast, plant and animal cells that undergo cell division, suggesting a function in cell cycle regulation and/or DNA replication. It subsequently became clear that PCNA also played a role in other processes involving the cell genome. SCOPE: This review discusses eukaryotic PCNA, with an emphasis on plant PCNA, in ...
DOI:
10.1093/aob/mcq243
PubMed:
21169293
PubMed Central:
PMC3091797

11. Searching for gene flow from cultivated to wild strawberries in Central Europe

Author:
Schulze, Juerg; Stoll, Peter; Widmer, Alex; Erhardt, Andreas
Source:
Annals of botany 2011 v.107 no.4 pp. 699-707
ISSN:
0305-7364
Subject:
DNA; Fragaria vesca; cell nucleus; crossing; farms; flow cytometry; gardens; gene flow; hybrids; microsatellite repeats; parents; strawberries; surveys; Central European region; Germany; Switzerland
Abstract:
... BACKGROUND AND AIMS: Experimental crosses between the diploid woodland strawberry (Fragaria vesca L.) and the octoploid garden strawberry (F. x ananassa Duch.) can lead to the formation of viable hybrids. However, the extent of such hybrid formation under natural conditions is unknown, but is of fundamental interest and importance in the light of the potential future cultivation of transgenic stra ...
DOI:
10.1093/aob/mcr018
PubMed:
21307039
PubMed Central:
PMC3064547

12. Tests for inbreeding and outbreeding depression and estimation of population differentiation in the bird-pollinated shrub Grevillea mucronulata

Author:
Forrest, Cairo N.; Ottewell, Kym M.; Whelan, Robert J.; Ayre, David J.
Source:
Annals of botany 2011 v.108 no.1 pp. 185-195
ISSN:
0305-7364
Subject:
DNA; Grevillea; adults; autocorrelation; gene flow; genetic variation; genotype-environment interaction; germination; inbreeding depression; leaves; mating systems; open pollination; pollen; seed dispersal; seed set; seedling growth; seedlings; seeds; shrubs; surveys
Abstract:
... BACKGROUND AND AIMS: Plants show patterns of spatial genetic differentiation reflecting gene flow mediated by pollen and seed dispersal and genotype x environment interactions. If patterns of genetic structure are determined largely by gene flow then they may be useful in predicting the likelihood of inbreeding or outbreeding depression but should be less useful if there is strong site-specific se ...
DOI:
10.1093/aob/mcr100
PubMed:
21546431
PubMed Central:
PMC3119612