Chromosome‐specific painting unveils chromosomal fusions and distinct allopolyploid species in the Saccharum complex

2021 ◽  
Author(s):  
Fan Yu ◽  
Xinwang Zhao ◽  
Jin Chai ◽  
Xueer Ding ◽  
Xueting Li ◽  
...  
Keyword(s):  
Saccharum Complex

Analysis of Genetic Diversity of Saccharum Complex Using Chloroplast Microsatellite Markers

Sugar Tech ◽  
2015 ◽  
Vol 18 (2) ◽  
pp. 141-148 ◽  
Author(s):  
Punnya Raj ◽  
A. Selvi ◽  
P. T. Prathima ◽  
N. V. Nair
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Saccharum Complex ◽  
Chloroplast Microsatellite

scholarly journals Characterization and gas exchange in accessions of Saccharum complex under salinity in the Sub-middle São Francisco, Brazil

2021 ◽  
Vol 25 (3) ◽  
pp. 163-167
Author(s):  
Welson L. Simões ◽  
Anderson R. de Oliveira ◽  
Jucicléia S. da Silva ◽  
Vinicius G. Torres Junior ◽  
Weslley O. da Silva ◽  
...  
Keyword(s):  
Salt Stress ◽  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Saccharum Officinarum ◽  
Leaf Length ◽  
Saccharum Complex ◽  
Breeding Programs ◽  
Agricultural Yield ◽  
Semi Arid Region ◽  
Species Being

ABSTRACT Salinity is one of the factors that most limit agricultural yield in the Brazilian semi-arid region. In this context, the present study aimed to evaluate the leaf gas exchange and biometric characteristics of accessions of the Saccharum complex subjected to salt stress. The experiment was carried out in a greenhouse, installed at Embrapa Semiárido, in Petrolina, PE, Brazil. The experimental design was in randomized blocks, with the treatments represented by 19 accessions belonging to different genera/species, being 10 accessions of Saccharum officinarum (BGCN 6, BGCN 91, BGCN 104, BGCN 127, BCGN 90, BGCN 101, BGCN 102, BGCN 118, BGCN 125 and BGCN 122), two accessions of Saccharum spp. (BGCN 87 and BGCN 89), one accession of Saccharum hybridum (BGCN 88), one accession of Saccharum robustum (BGCN 94), four accessions of Erianthus arundinaceus (BGCN 117, BGCN 119, BGCN 120 and BGCN 123) and one accession of Miscanthus spp., with three repetitions. Biometric characteristics, chlorophyll index and leaf gas exchange of the accessions were evaluated when they were subjected to irrigation with salinized water (6.0 dS m-1). E. arundinaceus accessions (BGCN 120 and BGCN 123) showed the highest photosynthetic rate, transpiration rate, plant height and leaf length, indicating greater adaptability to salt stress and could be promising in breeding programs.

scholarly journals On the Validity of the Saccharum Complex and the Saccharinae Subtribe: A Re-assesment

2020 ◽  
Author(s):  
Dyfed Lloyd Evans ◽  
Shailesh Vinay Joshi
Keyword(s):  
Recent Work ◽  
Saccharum Complex ◽  
Current Form ◽  
Complex Species ◽  
Phylogenetic Studies ◽  
Complex Group ◽  
Cast Doubt

AbstractThe ‘Saccharum Complex’ represents an hypothetical collective of species that were supposedly responsible, through interbreeding, for the origins of sugarcane. Though recent phylogenetic studies have cast doubt on the veracity of this hypothesis, it has cast a long shadow over the taxonomics of the Andropogoneae and the Saccharinae subtribe. Though evidence suggests that Saccharum s.s. is comprised of only three true species, according to Kew’s GrassBase there are as many as 34 species in Saccharum s.l. Our recent work has shown that many of these species are millions of years divergent from Saccharum. As the Saccharum complex represents the species that sugarcane breeders attempt to introgress into sugarcane, and as the Saccharinae, in its current form, covers almst 12 million years of Andropogoneae evolution an update on the extents of the Taxonomic and customary groupings is much needed. Based on the latest sequence based phylogenies and the inclusion of traditional taxonomics we develop an integrated view of the Saccharinae + Saccharum complex species in the context of the major groupings within the Andropogoneae. We use this phylogeny to re-circumscribe the limits of both the Saccharinae subtribe and the Saccharum complex group of interbreeding species.

The Complement of Soluble Sugars in the Saccharum Complex

2010 ◽  
Vol 3 (2) ◽  
pp. 110-122 ◽  
Author(s):  
Donna Glassop ◽  
Louise P. Ryan ◽  
Graham D. Bonnett ◽  
Anne L. Rae
Keyword(s):  
Soluble Sugars ◽  
Saccharum Complex

scholarly journals The endemic ‘sugar canes’ of Madagascar (Poaceae, Saccharinae: Lasiorhachis) are close relatives of sorghum

2019 ◽  
Vol 192 (1) ◽  
pp. 148-164 ◽  
Author(s):  
Maria S Vorontsova ◽  
Guillaume Besnard ◽  
Jacqueline Razanatsoa ◽  
Jan Hackel
Keyword(s):  
Phylogenetic Analyses ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Ecological Niches ◽  
Distribution Map ◽  
Saccharum Complex ◽  
Germplasm Collections ◽  
Nuclear Its ◽  
Nuclear Regions ◽  
Close Relatives

Abstract Crop wild relatives are important but often poorly known. This is the case for subtribe Saccharinae (Poaceae: Andropogoneae), which includes sugarcane (Saccharum) and sorghum (Sorghum). We present a phylogenetic and taxonomic account of the Malagasy endemic genus Lasiorhachis, previously included in Saccharum. New plastome and nuclear sequences were assembled from genome skimming data. Phylogenetic analyses of whole plastomes place Lasiorhachis as sister to Sorghum and only distantly related to the interbreeding Saccharum complex. This is also supported by analyses of nuclear ITS and partial assemblies for eight low-copy regions. Some nuclear regions suggest that Lasiorhachis is closer to Sorghum section Sorghum than other Sorghum spp. sometimes segregated as Vacoparis. We present a full taxonomic treatment of Lasiorhachis with an identification key, synonymy, typification, descriptions, drawings and a distribution map of the three species, all endemic to the central highlands of Madagascar. Lasiorhachis species occupy contrasting ecological niches and at least one of them, L. viguieri, has significance for ecosystem function. As crop wild relatives of sorghum, Lasiorhachis species should be included in germplasm collections.

On the Taxonomy of the Members of ‘Saccharum Complex’

2005 ◽  
Vol 53 (1) ◽  
pp. 35-41 ◽  
Author(s):  
V. Alfonse Amalraj ◽  
N. Balasundaram
Keyword(s):  
Saccharum Complex

Isolation and characterization of a satellite DNA family in the Saccharum complex

Genome ◽  
1998 ◽  
Vol 41 (6) ◽  
pp. 854-864 ◽  
Author(s):  
Karine Alix ◽  
Franc-Christophe Baurens ◽  
Florence Paulet ◽  
Jean-Christophe Glaszmann ◽  
Angélique D'Hont
Keyword(s):  
In Situ Hybridization ◽  
Fluorescence In Situ Hybridization ◽  
Satellite Dna ◽  
Repetitive Sequences ◽  
Repeat Sequence ◽  
Miscanthus Sinensis ◽  
Saccharum Complex ◽  
Satellite Dnas ◽  
Isolation And Characterization

EaCIR1, a 371-bp Erianthus-specific satellite DNA sequence, was cloned from TaqI restricted genomic DNA after agarose-gel electrophoresis. This sequence has 77% homology with a 365-bp satellite of Helictotrichon convolutum and 72% homology with a 353-bp tandem repeat sequence from Oryza sativa. PCR primers defined in the conserved regions of these repetitive sequences were used to isolate other satellite DNAs in different representatives of the Saccharum complex: SoCIR1 in Saccharum officinarum, SrCIR1 in Saccharum robustum, SsCIR1 and SsCIR2 in Saccharum spontaneum, and MsCIR1 in Miscanthus sinensis. EaCIR1 and SoCIR1 were localized to subtelomeric regions of the chromosomes by fluorescence in situ hybridization. Southern hybridization experiments, using two representatives of this repeat sequence family as probes, illustrated contrasting species-specificity and demonstrated the existence of similar repetitive elements in sorghum and maize.Key words: satellite DNA, sugarcane, Saccharum complex, Gramineae, fluorescence in situ hybridization, FISH.

Sign in / Sign up

Export Citation Format

Share Document