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173 results for “sugarcane”
Low functional richness and high functional redundancy of Neotropical dung beetle assemblages in forest-replacing sugarcane plantations
<p>Dung beetles collected in forest interior areas, forest edge, small fragments, sugarcane plantations (matrix of primary forest) and sugarcane plantations (matrix of small fragments) of a Brazilian Atlantic forest landscape (Serra Grande, Alagoas).</p>
Fig 3 from: Bam A, Addison P, Conlong D (2020) Acridid ecology in the sugarcane agro-ecosystem in the Zululand region of KwaZulu-Natal, South Africa. Journal of Orthoptera Research 29(1): 9-16. https://doi.org/10.3897/jor.29.34626
Fig 3 Population survey showing the relative abundance of the five most prominent acridid species in sugarcane in relation to the damage rating index on the secondary y axis.
Fig 5 from: Bam A, Addison P, Conlong D (2020) Acridid ecology in the sugarcane agro-ecosystem in the Zululand region of KwaZulu-Natal, South Africa. Journal of Orthoptera Research 29(1): 9-16. https://doi.org/10.3897/jor.29.34626
Fig 5 Association between grasshopper species and habitat. Correspondence analysis showing the association between grasshopper species in relation to sugarcane and grassland survey sites sampled over a seven-week period from 21 November 2012–19 February 2013.
Fig 4 from: Bam A, Addison P, Conlong D (2020) Acridid ecology in the sugarcane agro-ecosystem in the Zululand region of KwaZulu-Natal, South Africa. Journal of Orthoptera Research 29(1): 9-16. https://doi.org/10.3897/jor.29.34626
Fig 4 Mean abundance (± SE) of six species of grasshoppers surveyed at the four sugarcane sites and the two grassland sites for the period 21 November 2012–19 February 2013.
Fig 2 from: Bam A, Addison P, Conlong D (2020) Acridid ecology in the sugarcane agro-ecosystem in the Zululand region of KwaZulu-Natal, South Africa. Journal of Orthoptera Research 29(1): 9-16. https://doi.org/10.3897/jor.29.34626
Fig 2 Rank abundance plot of the five most prominent acridid species found in sugarcane in Zululand, South Africa (1: Petamella prosternalis; 2: Nomadacris septemfasciata; 3: Cataloipus zuluensis; 4: Cyrtacanthacris aeruginosa; 5: Ornithacris cyanea), based on population surveys carried out from May 2012 to May 2013 in four study sites.
Fig 1 from: Bam A, Addison P, Conlong D (2020) Acridid ecology in the sugarcane agro-ecosystem in the Zululand region of KwaZulu-Natal, South Africa. Journal of Orthoptera Research 29(1): 9-16. https://doi.org/10.3897/jor.29.34626
Fig 1 Aerial view of four farms where surveys took place indicating the five 100 m transects per farm (red lines). Yellow lines indicate the two survey areas in natural habitats. A. Tedder (Magazulu) farm; B. Crystal Holdings; C. GSA farm; and D. Jengro.
Data from: Genome-wide association mapping of quantitative traits in a breeding population of sugarcane
Background: Molecular markers associated with relevant agronomic traits could significantly reduce the time and cost involved in developing new sugarcane varieties. Previous sugarcane genome-wide association analyses (GWAS) have found few molecular markers associated with relevant traits at plant-cane stage. The aim of this study was to establish an appropriate GWAS to find molecular markers associated with yield related traits consistent across harvesting seasons in a breeding population. Sugarcane clones were genotyped with DArT (Diversity Array Technology) and TRAP (Target Region Amplified Polymorphism) markers, and evaluated for cane yield (CY) and sugar content (SC) at two locations during three successive crop cycles. GWAS mapping was applied within a novel mixed-model framework accounting for population structure with Principal Component Analysis scores as random component. Results: A total of 43 markers significantly associated with CY in plant-cane, 42 in first ratoon, and 41 in second ratoon were detected. Out of these markers, 20 were associated with CY in 2 years. Additionally, 38 significant associations for SC were detected in plant-cane, 34 in first ratoon, and 47 in second ratoon. For SC, one marker-trait association was found significant for the 3 years of the study, while twelve markers presented association for 2 years. In the multi-QTL model several markers with large allelic substitution effect were found. Sequences of four DArT markers showed high similitude and e-value with coding sequences of Sorghum bicolor, confirming the high gene microlinearity between sorghum and sugarcane. Conclusions: In contrast with other sugarcane GWAS studies reported earlier, the novel methodology to analyze multi-QTLs through successive crop cycles used in the present study allowed us to find several markers associated with relevant traits. Combining existing phenotypic trial data and genotypic DArT and TRAP marker characterizations within a GWAS approach including population structure as random covariates may prove to be highly successful. Moreover, sequences of DArT marker associated with the traits of interest were aligned in chromosomal regions where sorghum QTLs has previously been reported. This approach could be a valuable tool to assist the improvement of sugarcane and better supply sugarcane demand that has been projected for the upcoming decades.
Draft genome sequence of Xylaria bambusicola isolate GMP-LS, the root and basal stem rot pathogen of sugarcane in Indonesia
<p>Supplementary Figure 1</p><p>Supplementary Table 1</p><p>Supplementary Table 2</p>
Data from: Whole chloroplast genome and gene locus phylogenies reveal the taxonomic placement and relationship of Tripidium (Panicoideae: Andropogoneae) to sugarcane
Background: For over 50 years, attempts have been made to introgress agronomically useful traits from Erianthus sect. Ripidium (Tripidium) species into sugarcane based on both genera being part of the 'Saccharum Complex', an interbreeding group of species believed to be involved in the origins of sugarcane. However, recent low copy number gene studies indicate that Tripidium and Saccharum are more divergent than previously thought. The extent of genus Tripidium has not been fully explored and many species that should be included in Tripidium are still classified as Saccharum. Moreover, Tripidium is currently defined as incertae sedis within the Andropogoneae, though it has been suggested that members of this genus are related to the Germainiinae. Results: Eight newly-sequenced chloroplasts from potential Tripidium species were combined in a phylogenetic study with 46 members of the Panicoideae, including seven Saccharum accessions, two Miscanthidium and three Miscanthus species. A robust chloroplast phylogeny was generated and comparison with a gene locus phylogeny clearly places a monophyletic Tripidium clade outside the bounds of the Saccharinae. A key to the currently identified Tripidium species is presented. Conclusion: For the first time, we have undertaken a large-scale whole plastid study of eight newly assembled Tripidium accessions and a gene locus study of five Tripidium accessions. Our findings show that Tripidium and Saccharum are eight million years divergent, last sharing a common ancestor 12 million years ago. We demonstrate that four species should be removed from Saccharum/Erianthus and included in genus Tripidium. In a genome context, we show that Tripidium evolved from a common ancestor with and extended Germainiinae clade formed from Germainia, Eriochrysis, Apocopis, Pogonatherum and Imperata. We re-define the 'Saccharum complex' to a group of genera that can interbreed in the wild and extend the Saccharinae to include Sarga along with Sorghastrum, Microstegium vimineum and Polytrias (but excluding Sorghum). Monophyly of genus Tripidium is confirmed and the genus is expanded to include Tripidium arundinaceum, Tripidium procerum, Tripidium kanashiroi and Tripidium rufipilum. As a consequence, these species are excluded from genus Saccharum. Moreover, we demonstrate that genus Tripidium is distinct from the Germainiinae.
Figure 2 in Within-plant distribution and rapid assessment of sugarcane rust mite population on sugarcane canopy
Figure 2 Within-plant distribution of sugarcane rust mite population based on direct counting on three sugarcane cultivars (mean ± SEM). The numbers within brackets are the proportions of mite populations within plants. Means across leaves with the same capital letters are not significantly different and means with the same lower letters on a given leaf position are not significantly different (Tukey, P <0.05).
Figure 1 in Effect of untreated and pretreated sugarcane molasses on growth performance of Haematococcus pluvialis microalgae in inorganic fertilizer and macrophyte extract culture media
Figure 1. Diagram of Haematococcus pluviais, where: (A) maintenance of strain in 10 mL with WC culture medium; (B) initial culture in 250 mL with WC culture medium; (C) culture in 2 L with NPK culture medium; (D) experiment of mixotrophic cultivation with untreated and pretreated sugarcane molasses with two different culture media, NPK and ME (macrophyte extract).
Fig. 1 in Impacts of crop residue on damage by sugarcane pests during the tillering phase in Argentina
Fig. 1. Injury (proportion of damaged shoots) caused by Elasmopalpus lignosellus (a) and Pseudaletia unipuncta (b), for 2 harvest residue management schemes at 3 locations, 2011 to 2013.
Soil carbon stocks in sugarcane cultivation: an evidence synthesis associated with land use and management practices
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Figure 3 from: Xie L, Chen Y-L, Long Y-Y, Zhang Y, Liao S-T, Liu B, Qin L-P, Nong Q, Zhang W-L (2019) Three new species of Conlarium from sugarcane rhizosphere in southern China. MycoKeys 56: 1-11. https://doi.org/10.3897/mycokeys.56.35857
Figure 3 The new species Conlariumsacchari (holotype, HMAS 247299). A Colony morphology B–L Conidiophores, conidiogenous cells and conidia. Scale bars: 10 mm (A); 10 μm (B–L).
Figure 1 from: Xie L, Chen Y-L, Long Y-Y, Zhang Y, Liao S-T, Liu B, Qin L-P, Nong Q, Zhang W-L (2019) Three new species of Conlarium from sugarcane rhizosphere in southern China. MycoKeys 56: 1-11. https://doi.org/10.3897/mycokeys.56.35857
Figure 1 The new species Conlariumnanningense (HMAS 247075, holotype). A Colony morphology B, C Scanning electron microscopy of conidia D–I Mature conidia. Scale bars: 10 mm (A); 10 μm (B–E).
Figure 2 from: Xie L, Chen Y-L, Long Y-Y, Zhang Y, Liao S-T, Liu B, Qin L-P, Nong Q, Zhang W-L (2019) Three new species of Conlarium from sugarcane rhizosphere in southern China. MycoKeys 56: 1-11. https://doi.org/10.3897/mycokeys.56.35857
Figure 2 The new species Conlariumbaiseense (HMAS 247298, holotype). A Colony morphology B–I Conidiophores, conidiogenous cells and conidia. Scale bars: 10 mm (A); 10 μm (B).
Figure 4 from: Xie L, Chen Y-L, Long Y-Y, Zhang Y, Liao S-T, Liu B, Qin L-P, Nong Q, Zhang W-L (2019) Three new species of Conlarium from sugarcane rhizosphere in southern China. MycoKeys 56: 1-11. https://doi.org/10.3897/mycokeys.56.35857
Figure 4 Bayesian tree based on the combined SSU+ITS+LSU+RBP2 sequences of Conlarium species and related families. Lentomitellacirrhosa was designated as outgroups. The numbers at each branch point represented Bayesian posterior probabilities (left) and percentage bootstrap support calculated from 1,000 replicates (right). *indicates lack of support or support less than 50 % for a particular clade. New species proposed are in bold. Bar 0.1 expected changes per site.
Fig. 2 in The new Oriental stick insect genus Baculomia gen. nov. with two new species from Vietnam including the first stick insect feeding on sugarcane (Phasmida, Phasmatidae, Clitumninae, Clitumnini)
Fig. 2. Baculomia spp., distribution map.
Data from: Whole chloroplast genome and gene locus phylogenies reveal the taxonomic placement and relationship of Tripidium (Panicoideae: Andropogoneae) to sugarcane
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Data from: Genetic analysis of sugarcane mosaic virus resistance in the Wisconsin Diversity Panel of maize
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