Genetic dissection of a modern sugarcane cultivar (Saccharum spp.). I. Genome mapping with AFLP markers

Hoarau, Jean-Yves; Offmann, Bernard; D’Hont, Angélique; Risterucci, Ange-Marie; Roques, Danièle; Glaszmann, Jean-Christophe; Grivet, Laurent

doi:10.1007/s001220000390

Cited by 146 publications

(141 citation statements)

References 19 publications

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“…Geier et al (1992) revealed wide nuclear instabilities after cytological manipulations in Poinsettia. Bred and cultivated sugarcane species have a complex polyploid and aneuploid genome with frequent irregular chromosome numbers (Hoarau et al 2001). Aneuploidy and genome instability might be a consequence of meiotic dysfunctions or other mechanisms of genomic rearrangements in the case of polyploidization (Becker 1993, Grivet et al 1996, Storchova and Pellman 2004, Wang et al 2010, Chen and Ni 2006.…”

Section: Discussionmentioning

confidence: 99%

Ploidy Level and Reproductive Trait Analysis in Three <i>Matricaria recutita</i> Cultivars

2013

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SummaryIn continuation of past trials to develop a triploid chamomile cultivar, flow cytometer investigations to determine spontaneous ploidy variation in established cultivars of Matricaria recutita were carried out. The screening of a total of 120 plants of three cultivars included general analysis of ploidy level and specific differentiation of aneuploids. Microscopic counts of mitotic chromosome numbers in some reference individuals and comparison of flowering and seed characters between cultivars and ploidy levels were included. Results showed ploidy level-deviants in two of three cultivars and a clear segregation of a uniform diploid unit of plants against a dispersive tetraploid unit with numerous hyper-and hypotetraploid aneuploids, but no triploids. The tendency to flower was significantly higher in diploid plants (vs. tetraploids), whereas the flowering duration of plants and the flowering duration of single capitula rose slightly with increasing ploidy level. Matricaria recutita seems not to produce triploids easily, as none were observed; they neither occurred through spontaneous formation nor after controlled crossing. However, autotetraploid aneuploids with varying number of chromosomes emerged frequently. This study sought genetically non-modifying methods to gain triploids and to reveal any aneuploids, resp., in Matricaria recutita. The base chromosome number in Matricaria recutita is x=9, the haploid genome size in diploid individuals is 3.88 pg (Nagl and Ehrendorfer 1974). So far, only one triploid plant was successfully generated after about 500 artificial crossings between diploid and tetraploid individuals. This hybrid offspring was propagated by cuttings (Franz and BeinLobmaier, unpublished). Previous investigations of different ploidy levels in German chamomile revealed a high percentage of aneuploid individuals (52%) among colchicine-induced autotetraploids (Lambrou et al. 2001, pers. comm.), a very low number of, by then sterile, seeds after artificial crossing between di-and tetraploids (Letchamo 1992), but unexpectedly high pollen viability (81.6%, estimated by analysis of mature pollen grains after acetocarmine staining) in cloned triploid hybrids (Lambrou et al. 2001, pers. comm.). In consequence, flow cytometric examinations of a large amount of plants of different established cultivars were carried out to determine particular ploidy levels and possibly to reveal spontaneous triploids or other chromosomal aberrations, respectively. Additionally there was the aim to compare agronomically relevant traits of the reproductive system between different ploidy levels and/or different cultivars. Key words

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Section: Discussionmentioning

confidence: 99%

Ploidy Level and Reproductive Trait Analysis in Three <i>Matricaria recutita</i> Cultivars

2013

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“…quantitative (polygenic) character and generally influenced by environmental variation, the productivity is being governed by stalk length, stalk girth, number of millable cane, (Hoarau et al, 2001;Aitken et al, 2006;Singh et al, 2013). An ideal variety is one that has high mean yield but a low degree of fluctuation in performance when grown over diverse environment.…”

Section: Issn: 2319-7706 Volume 6 Number 7 (2017) Pp 4148-4159mentioning

confidence: 99%

Genotype Environment Interaction for Sugar-Related Traits in Sugarcane Mapping Population

Singh¹,

Singh²,

Nigam³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…Stalk weight is considered as the potential interpreter in several studies. [19] In sugarcane, yield is dependent on a number of factors including morphological traits in which tillers per plant, stalk length and diameter are considered important. Quantitative trait loci (QTLs) have been detected for basic sucrose content and yield contributing traits, namely sucrose content, fibre per cent, cane yield and sugar yield.…”

Section: Ssr Analysismentioning

confidence: 99%

Association mapping of cane weight and tillers per plant in sugarcane

Bilal

Saeed

Nasir

et al. 2015

Biotechnology & Biotechnological Equipment

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Identification of agronomic traits tightly linked to molecular markers is a major footstep to implement the marker assisted selection in breeding programmes. Sugarcane is the major cash crop and the source of more than 2/3 of world sugar production. In this study, 20 simple sequence repeat (SSR) markers were used to find the linkage for sugarcane yield components; cane weight and tillers per plant using 28 sugarcane genotypes. In total, 114 alleles were found, ranging from 2-13 alleles per locus with a mean value of 5.7. High levels of polymorphism were detected through SSR amplifications among all genotypes studied. SSR markers, CEMB-14A and CEMB-14B, were found linked (P < 0.01) to tillers per plant while CEMB-5A, CEMB-5C and CEMB-7B were found associated (P < 0.05) with cane weight. Identification of new and novel SSR markers in sugarcane have potential use in genetic diversity studies, DNA fingerprinting, DNA markers-based screening of germplasm for breeding programme and also in determination of true hybrids in the offspring.

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Genetic dissection of a modern sugarcane cultivar (Saccharum spp.). I. Genome mapping with AFLP markers

Cited by 146 publications

References 19 publications

Ploidy Level and Reproductive Trait Analysis in Three <i>Matricaria recutita</i> Cultivars

Ploidy Level and Reproductive Trait Analysis in Three <i>Matricaria recutita</i> Cultivars

Genotype Environment Interaction for Sugar-Related Traits in Sugarcane Mapping Population

Association mapping of cane weight and tillers per plant in sugarcane

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