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746 results for “Brassica”
Methyl halide fluxes from rapeseed (Brassica napus) over its life cycle
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Pieris brassicae geometric morphometric data
<p class="CxSpFirst">By adopting a longitudinal study design and through geometric morphometrics methods, we investigated size and shape regulation in the head capsule during the larval development of the cabbage butterfly <i>Pieris brassicae</i> under laboratory conditions. We found evidence of size regulation by compensatory growth, although not equally effective in all larval stages. Size compensation is not attained through the regulation of developmental timing, but rather through the modulation of per-time growth rate. As for the shape, neither the variance of the symmetric component of shape, nor the level of fluctuating asymmetry show any evidence of increase across stages, either at the population or individual level, which is interpreted as a mark of ontogenetic shape regulation. In addition, also the geometry of individual asymmetry is basically conserved across stages. While providing specific documentation on the ontogeny of size and shape variation in this insect, this study may contribute to a more general understanding of developmental regulation and its influence on phenotypic evolution.</p>
Data from: How efficient is Apis cerana (Hymenoptera: Apidae) in pollinating cabbage, Brassica oleracea var. capitata? pollination behavior, pollinator effectiveness, pollinator requirement, and impact of pollination
Cabbage is a cross-pollinated crop because of sporophytic self-incompatibility, and honey bees play an important role in its pollination. Though Asian honey bees, Apis cerana F., are used in pollination of cabbage, the rate of visitation, behavior, pollinator efficacy, and impact on seed-set are to be determined. Apis cerana occupy a share of 19.18% of all the flower visitors of cabbage in natural habitat of North Western Indian Himalayas. Pollination behavior in terms of peak activity, flowers processed per unit time, time spent per flower, and time spent in search of flowers are studied separately for both pollen and nectar foragers. Pollinator effectiveness as measured by seed set in flowers excluded from bee visitation, single bee visit, and unrestricted pollinator visits was 0.11. Studies on the impact of A. cerana bee pollination in cabbage seed production revealed an increase of 17.28% in siliqua per panicle, with 26.11% increase in seed yield. For assessing the requirement of A. cerana to pollinate one hectare of cabbage, flower availability and the speed with which the pollen and nectar foragers process the flowers are taken into consideration. A forager is estimated to pollinate 4,780 flowers a day, but cabbage flower requires 9.09 visits of A. cerana for optimum seed set. Thus, a maximum of 4,999 bee foragers or 8.33 colonies are needed to effectively pollinate 1 ha of cabbage. Though A. cerana is a good pollinator, our findings suggest that it is not an ideal pollinator of cabbage.
Data from: Genomic identification, characterization and differential expression analysis of SBP-box gene family in Brassica napus
Background: SBP-box genes belong to one of the largest families of transcription factors. Though members of this family have been characterized to be important regulators of diverse biological processes, information of SBP-box genes in the third most important oilseed crop Brassica napus is largely undefined. Results: In the present study, by whole genome bioinformatics analysis and transcriptional profiling, 58 putative members of SBP-box gene family in oilseed rape (Brassica napus L.) were identified and their expression pattern in different tissues as well as possible interaction with miRNAs were analyzed. In addition, B. napus lines with contrasting branch angle were used for investigating the involvement of SBP-box genes in plant architecture regulation. Detailed gene information, including genomic organization, structural feature, conserved domain and phylogenetic relationship of the genes were systematically characterized. By phylogenetic analysis, BnaSBP proteins were classified into eight distinct groups representing the clear orthologous relationships to their family members in Arabidopsis and rice. Expression analysis in twelve tissues including vegetative and reproductive organs showed different expression patterns among the SBP-box genes and a number of the genes exhibit tissue specific expression, indicating their diverse functions involved in the developmental process. Forty-four SBP-box genes were ascertained to contain the putative miR156 binding site, with 30 and 14 of the genes targeted by miR156 at the coding and 3′UTR region, respectively. Relative expression level of miR156 is varied across tissues. Different expression pattern of some BnaSBP genes and the negative correlation of transcription levels between miR156 and its target BnaSBP gene were observed in lines with different branch angle. Conclusions: Taken together, this study represents the first systematic analysis of the SBP-box gene family in Brassica napus. The data presented here provides base foundation for understanding the crucial roles of BnaSBP genes in plant development and other biological processes.
[Data from:] A butterfly egg-killing hypersensitive response in Brassica nigra is controlled by a single locus, PEK, containing a cluster of TIR-NBS-LRR receptor genes
<p>Genetic mapping of a HR-like cell death induced by <em>Pieris </em>spp. butterfly eggs in <em>Brassica nigra.</em></p>
DArTseq of Brassica
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GBS data of seven Brassica cultivars from Pakistan
<p>The genotyping-by-sequencing (GBS) data was generated on seven Brassica cultivars from Pakistan as a purpose of varietal registration. After strict quality-control, only 501 high-quality SNP markers were retained with 0% missing data. These marker sites can be used for varietal identification and diversity analysis.</p>
Figure 2 in Comparative effectiveness of EDTA and citric acid assisted phytoremediation of Ni contaminated soil by using canola (Brassica napus)
Figure 2. The role of EDTA and citric acid on (a) transpiration rate and (b) Stomatal conductance at vegetative stage for phytoremediation of Ni by using canola plant and the role of EDTA and CA on (c) leaf water potential (Ψw) and (d) leaf osmotic potential (Ψs) at vegetative stage for phytoremediation of Ni by using canola plant.
Dual nematode infection in Brassica nigra affects shoot metabolome and aphid survival in distinct contrast to single-species infection
<p><strong><span>Abstract</span></strong></p> <p><span>Previous studies showed that aphid performance was compromised on <em>Brassica nigra</em> infected by root-lesion nematodes (<em>Pratylenchus penetrans</em>, Pp), but less, or positively influenced by root-knot nematode (<em>Meloidogyne</em> <em>spp</em>., Mi) infection. These experiments were on single-nematode infections, while naturally, roots are infected with several nematode species simultaneously.</span></p> <p><span>We performed greenhouse assays to assess the effects of single (Mi, Pp) and concurrent (MP)-nematode infections on aphid performance. Using targeted and untargeted profiling of leaf and phloem metabolomes, we examined how single- and concurrent-nematode infections affect shoots metabolomes, and elucidated the possible consequences on aphid performance. We found that the metabolic response towards double-infection is different from single-species infections. Moreover, Mi- and Pp-infections triggered discrete changes in <em>B. nigra</em> leaf and phloem metabolic profiles. Both Pp and MP-infections reduced aphid survival, suggesting that the biological effect could primarily be dominated by Pp-induced changes. This concurred with increased indole glucosinolates and hydroxycinnamic acid levels in the leaves, in particular the putative involvement of salicylic acid-2-O-β-D-glucoside. </span></p> <p><span>This study provides evidence that concurrent infection of different nematode species, as is common in natural environments, is associated with distinct changes in aboveground plant metabolomes, which may be linked to variations in the survival of an aboveground herbivore.<span> </span></span></p>
Figure 8 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 8 Brassicamontana near Passo del Lupo, Monte Conero, May (left) and August (right) 2005. Photo credit: L. Maggioni/Bioversity International.
Figure 3 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 3 Type material (stated by S. Snogerup) of Brassicarobertianavar.apenninica Cavara at G. Photo credit: Conservatoire et Jardin botaniques de la Ville de Genève.
Figure 10 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 10 Distribution of Brassicamontana in the Northern Apennine, based on available public sources. For Tuscany, among others, Peruzzi and Bedini (2015 onwards). Green dots: records post 1950; red dots: records before 1950; yellow dot: recent observation, not confirmed by the present paper.
Figure 7 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 7 Brassicamontana, Borgo Maggiore, San Marino, August 2014. Bottom right image shows glaucous and waxy leaves. Photo credit: L. Maggioni/Bioversity International.
Figure 6 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 6 Herbarium specimens collected by Pampanini in San Marino. Courtesy of Museo Civico di Storia Naturale, Verona (left) and of Museo di Storia Naturale, Florence (Italy) (right).
Figure 1 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 1 Distribution of B.montana in Italy, based on available public sources. For Liguria, among others, Wikiplantbase #Liguria, Barberis et al. (2016 onwards). For Tuscany, among others, Peruzzi and Bedini (2015 onwards). Green dots: records post 1950; red dots: records before 1950.
Figure 9 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 9 Brassicamontana, il Passetto, Ancona, May 2017. Photo credit: L. Maggioni/Bioversity International.
Figure 2 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 2 Illustration of Brassicarobertianavar.apenninica, from Cavara (1890), courtesy of Biblioteca Dipartimento BiGeA – Alma Mater Studiorum – Università degli Studi di Bologna. Photo credit: A. Alessandrini.
Figure 5 from: Maggioni L, Alessandrini A (2019) The occurrence of Brassica montana Pourr. (Brassicaceae) in the Italian regions of Emilia-Romagna and Marche, and in the Republic of San Marino. Italian Botanist 7: 1-16. https://doi.org/10.3897/italianbotanist.7.31727
Figure 5 Card index for "BrassicaoleraceaL.subsp.silvestris L. (Mill.)" from the Zangheri collection, Museo Civico di Storia Naturale, Verona, Italy.
Fig. 2 in Bee assemblage in habitats associated with Brassica napus L.
Fig. 2. Distribution of bee groups in three habitats classes of agricultural areas with Brassica napus (Hyola 420) from August 2010 to October 2011 in Esmeralda, Rio Grande do Sul, Brazil.
Characterization of Rapseed (Brassica napus) Genotypes on the basis of Phenotypic Traits
<p>Characterization of Rapseed (Brassica napus) Genotypes on the basis of Phenotypic Traits </p>
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