Das morphologische System des Saatweizens,Triticum aestivum L. s. l.

Mansfeld, R.

doi:10.1007/bf00710527

Cited by 39 publications

(17 citation statements)

References 4 publications

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“…1, Table 1). Using the taxonomical systems of Mansfeld (1951), Dorofeev et al (1979 three species, Triticum aestivum L., Triticum turgidum L., Triticum. durum Desf.…”

Section: Resultsmentioning

confidence: 99%

“…The taxonomic identification has performed according to Mansfeld (1951), Vasconcellos (1933a, b) and Gadea (1954) profound, and the latter one explained only 6.70% variation. The sum of Eigen-values for axes 1 and 3 was 13.89 from the total value of 32.91.…”

Section: Resultsmentioning

confidence: 99%

“…durum Desf. was represented by 6 botanical varieties, according to the Vasconcellos (1933a), Flaksburger (1935, 1939 and Mansfeld (1951) classification: var. alexandrinum (Körn.)…”

Section: Resultsmentioning

confidence: 99%

“…Taxonomical classifications were performed according to Vasconcellos (1933aVasconcellos ( , b, 1943, Gadea (1954), Mansfeld (1951) and Dorofeev et al (1979).…”

Section: Taxonomical Identificationmentioning

confidence: 99%

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Morphological characterization of wheat genetic resources from the Island of Madeira, Portugal

Santos

Ganança

Śląski

et al. 2008

Genet Resour Crop Evol

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This paper presents the first comprehensive morphological characterization and identification of the wheat populations collected on the Archipelago of Madeira and preserved at the ISOPlexis Germplasm Bank, the University of Madeira, Funchal. Fifty-two wheat populations representing Madeira's Triticum diversity and a wide range of ecological conditions were evaluated based on the biometrical and cytometrical traits. Forty-six traits related to plant morphology, cytological and grain characteristics were included in a multivariate analysis. Taxonomic identification of the collected materials revealed the presence of 3 species, 2 subspecies and 16 botanical varieties among the Madeiran wheat germplasm. The obtained results were confirmed by the multivariate analysis since all accessions were grouped in clusters corresponding also to different taxonomic levels. The detailed description of the Madeiran wheat landraces may contribute also to the protection of the existing Triticum diversity as well as support efforts of conservation of landraces, proper germplasm preservation and utilization.

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“…1, Table 1). Using the taxonomical systems of Mansfeld (1951), Dorofeev et al (1979 three species, Triticum aestivum L., Triticum turgidum L., Triticum. durum Desf.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…durum Desf. was represented by 6 botanical varieties, according to the Vasconcellos (1933a), Flaksburger (1935, 1939 and Mansfeld (1951) classification: var. alexandrinum (Körn.)…”

Section: Resultsmentioning

confidence: 99%

“…Taxonomical classifications were performed according to Vasconcellos (1933aVasconcellos ( , b, 1943, Gadea (1954), Mansfeld (1951) and Dorofeev et al (1979).…”

Section: Taxonomical Identificationmentioning

confidence: 99%

See 2 more Smart Citations

Morphological characterization of wheat genetic resources from the Island of Madeira, Portugal

Santos

Ganança

Śląski

et al. 2008

Genet Resour Crop Evol

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show abstract

“…For such variation, diagnostic infraspecifi c classifi cations have been used (e.g. Percival 1921 ;Mansfeld 1951 ;Dorofeev et al 1979 ), and they proved useful for characterizing and handling landraces. For example, Dorofeev et al ( 1979 ) (Table 3.2 ) recognises 27 species with 17 subspecies, 32 convarieties and 1,055 botanical varieties (Knüpffer et al 2013 ).…”

Section: Methods Of Analysing Diversity Within and Between Taxamentioning

confidence: 99%

Genetic Resources of Triticum

Hammer

Knüpffer

2015

Advances in Wheat Genetics: From Genome to Field

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The political framework and the development of molecular biology and electronic data management caused a general paradigm shift in plant genetic resources (PGR), exemplifi ed here for wheat. (1) In situ versus ex situ maintenance of PGR. Ex situ maintenance lost predominance. Wild wheats are effectively maintained in the wild; landraces do well on farm. New methods did not lead to the expected progress. (2) Inclusion of neglected and underutilized crop species. Some species are probably extinct in traditional cultivation areas, whereas landraces were recently found for others. Wild relatives have gained importance in wheat breeding: besides wild Triticum species, also Aegilops , Secale , Hordeum and other genera are used. × Triticosecale reached world importance; × Tritordeum will follow soon. (3) Methods of analysing diversity within and between taxa. New technology yields new insights in the structure and evolution of populations. (4) Genetic erosion is a problem, also inside genebanks. (5) Landraces show complex morphological diversity. Infraspecifi c classifi cation systems are useful for their characterization and handling, but less recognised by breeders. (6) Methods of evaluation. Molecular markers identify genetic differences on a fairly simple level without reference to ecological adaptation. (7) Genebanks should expand classical evaluation programmes. Pre-breeding will gain importance. (8) Storage and reproduction in genebanks is done effectively and cost-effi ciently under long-term conditions, but strategic concepts for reproduction are needed. Traditional methods are often neglected, and modern possibilities over-emphasized. Maintenance of landraces in genebanks and on farm poses challenges. PGR work is conservative. Landraces can be studied by traditional methods; molecular methods can resolve specifi c questions.

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Preservation of plant genetic resources in the biotechnology era

Börner

2006

Biotechnology Journal

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Thousands of years ago humans began domesticating crops as a food source. Among the wild germplasm available, they selected those that were best adapted for cultivation and utilization. Although wild ancestors have continued to persist in regions where domestication took place, there is a permanent risk of loss of the genetic variability of cultivated plants and their wild relatives in response to changing environmental conditions and cultural practices. Recognizing this danger, plant ex situ genebank collections were created since the beginning of the last century. World-wide, more than 6 million accessions have been accumulated including the German ex situ genebank in Gatersleben, one of the four largest global collections, housing 150,000 accessions belonging to 890 genera and 3032 species. This review summarizes the ex situ plant genetic resources conservation behavior with a special emphasis on German activities. Strategies for maintenance and management of germplasm collections are reviewed, considering modern biotechnologies (in vitro and cryo preservation). General aspects on genetic diversity and integrity are discussed.

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Das morphologische System des Saatweizens,Triticum aestivum L. s. l.

Cited by 39 publications

References 4 publications

Morphological characterization of wheat genetic resources from the Island of Madeira, Portugal

Morphological characterization of wheat genetic resources from the Island of Madeira, Portugal

Genetic Resources of Triticum

Preservation of plant genetic resources in the biotechnology era

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