scholarly journals Genetic characterization of local Italian breeds of chickens undergoing in situ conservation

2010 ◽  
Vol 89 (3) ◽  
pp. 420-427 ◽  
Author(s):  
E. Zanetti ◽  
M. De Marchi ◽  
C. Dalvit ◽  
M. Cassandro
Keyword(s):  
Genetic Characterization ◽  
In Situ Conservation

Genetic characterization of the Crataegus genus: Implications for in situ conservation

2018 ◽  
Vol 231 ◽  
pp. 56-65 ◽  
Author(s):  
Arezoo Emami ◽  
Naghi Shabanian ◽  
Mohammad-Shafie Rahmani ◽  
Ali Khadivi ◽  
Negar Mohammad-Panah
Keyword(s):  
Genetic Characterization ◽  
In Situ Conservation

scholarly journals The standard characterization of the Romanian onion landrace ‘Roșie de Făgăraș’

2016 ◽  
Vol 73 (2) ◽  
pp. 101
Author(s):  
Mihaela Antofie ◽  
Camelia Sand Sava
Keyword(s):  
In Situ Conservation ◽  
Political Support ◽  
Medium Size ◽  
Small Scale ◽  
The European Union ◽  
Market Place ◽  
Food And Agriculture ◽  
Land Cultivation

‘Roșie de Făgăraș’ is a red onion landrace originating from the old region Făgăraș Country situated in South East Transylvania. It was officially included in the National Official Catalogue for cultivars and hybrids in 1952, for almost 50 years, and erased before 2004 without applying in situ conservation measures. However, food security depends on the appropriate management of all genetic resources for food and agriculture (PGRFA). Thus they have to be conserved and sustainable used and efforts have to be done for the recognition of this landrace as a PGRFA and therefore to be maintained "under conservation" into the Official Catalogue. The study focused on analysing data from three localities recognized for cultivating ‘Roșie de Făgăraș’, in order to evaluate morphometric characteristics of mature onion bulbs according to the UPOV Standard TG/46/7, productivity, land cultivation and socio-economic vulnerabilities. The analysis of morphometric measurements results support that ‘Roșie de Făgăraș’ is a medium size red onion that may have the chance to enter the market place, at least at the small scale, according to the current regulatory framework of the European Union regarding the conservation of landraces and provided by: Directive 2008/62/EC, Directive 2009/145/EC and Directive 2010/60/EU. The analysis of productivity, and land cultivation revealed dramatic land use change associated with the decline of cultivated area as following: 76.27% in Mândra, 50% in Recea and 33.34% in Beclean. With an increasing aging population, lack of political support for entering the market place, decrease of landowners cultivating ‘Roșie de Făgăraș’ for trade will increase vulnerability of traditional knowledge related to the conservation of this landrace.

scholarly journals Characterization of common bean wild populations for their in situ conservation in Northwestern Argentina

Euphytica ◽  
2017 ◽  
Vol 213 (8) ◽  
Author(s):  
Mariana J. Ferreyra ◽  
M. Carmen Menéndez-Sevillano ◽  
Yanina Noe ◽  
Luis R. Ibarra ◽  
Antonio M. De Ron
Keyword(s):  
Common Bean ◽  
In Situ Conservation ◽  
Wild Populations ◽  
Northwestern Argentina

scholarly journals Morpho-Biometrical, Nutritional and Phytochemical Characterization of Carrot Landraces from Puglia Region (Southern Italy)

2021 ◽  
Vol 13 (7) ◽  
pp. 3940
Author(s):  
Anna Bonasia ◽  
Giulia Conversa ◽  
Corrado Lazzizera ◽  
Giuseppe Gambacorta ◽  
Antonio Elia
Keyword(s):  
Local Community ◽  
Southern Italy ◽  
In Situ Conservation ◽  
Large Variability ◽  
High Profile ◽  
On Farm ◽  
Caffeic Acid Derivative ◽  
Nutraceutical Properties

The explorations as a part of the regional BiodiverSO Programme of vegetable genetic resource rescue revealed that in the arenili (sandy shores) of “Salterns of Margherita di Savoia” (SMS), a coastal landscape area of Puglia region (southern Italy), along the commercial genotypes of small rooting species, landraces are still cultivated. The morpho-biometrical, nutritional and phytochemical properties of two carrot landraces (“Carota a punta lunga” and “Carota a punta tonda”) and a commercial carrot hybrid (“Presto”) collected from the SMS area are examined. The study highlighted that the pedological conditions of the arenili of the SMS area are the main driving force in controlling the nutritional and nutraceutical characteristics of carrot, conferring to genotypes grown in this area a high profile in comparison with literature data. In the site of cultivation of arenili, a large variability in the morpho-qualitative traits emerged among carrot genotypes. “Carota a punta tonda” stands for a promising genotype being very rich in phenols (209.8 mg kg−1 fw) (mainly di-caffeic acid derivative and chlorogenic acid), ß-carotene (21,512 µg 100 g−1 fw), and high antioxidative proprieties. “Carota a punta tonda” could be considered as a healthy product for consumers and also amenable to selection for breeding purpose. Increasing the knowledge about nutritional and nutraceutical properties of local landraces may push the preference of consumers beyond the local community and, at the same time, farmers can be stimulated to continue their cultivation. Thus, the promotion of their on-farm/in situ conservation (cultivation) could represent an efficient strategy for agro-biodiversity preservation.

scholarly journals In situ and genetic characterization of Gossypium barbadense populations from the states of Pará and Amapá, Brazil

2009 ◽  
Vol 44 (7) ◽  
pp. 719-725 ◽  
Author(s):  
Vanessa Cavalcante de Almeida ◽  
Lúcia Vieira Hoffmann ◽  
Gilberto Ken It Yokomizo ◽  
Joaquim Nunes da Costa ◽  
Marc Giband ◽  
...  
Keyword(s):  
Genetic Characterization ◽  
Germplasm Collection ◽  
Gossypium Barbadense ◽  
Ex Situ ◽  
In Situ Characterization ◽  
Total Genetic Diversity ◽  
High Level ◽  
Single Sequence

The objective of this work was to characterize the populations of Gossypium barbadense in the states of Amapá and Pará, Brazil. In situ characterization was conducted through interviews with the owners of the plants and environmental observations. Leaf or petal tissue as well as seed samples were collected for genetic characterization by single sequence repeats markers and for storage in germplasm banks, respectively. The plants were maintained in dooryards and used mainly for medical purposes. The genetic analysis showed no heterozygous plants at the loci tested (f = 1), indicating that reproduction occurs mainly through selfing. The total genetic diversity was high (He = 0.39); and a high level of differentiation was observed between cotton plants from the two states (F ST = 0.36). Conventional methods of in situ maintenance of G. barbadense populations are not applicable. The conservation of the genetic variability of populations present in the two states could be achieved through germplasm collection and establishing of ex situ seed banks.

scholarly journals Genetic Characterization of an Unknown Chinese Bulbous Leek-like Accession and its Relationship to Similar Allium Species

HortScience ◽  
2005 ◽  
Vol 40 (6) ◽  
pp. 1690-1694 ◽  
Author(s):  
Borut Bohanec ◽  
Marijana Jakše ◽  
Predrag Šesek ◽  
Michael J. Havey
Keyword(s):  
Genome Size ◽  
Genetic Characterization ◽  
Plastid Dna ◽  
Dna Polymorphisms ◽  
Shanxi Province ◽  
Allium Species ◽  
Allium Ampeloprasum ◽  
Cultivated Plant

Bulbous leek-like plants are a poorly defined group usually assigned to the Allium ampeloprasum complex. Studies were initiated to determine the origin of an unusual bulbous accession received in Shanxi province in China, where it was used in diet as garlic but propagated by seeds, and to genetically compare this accession with morphologically similar plants from Europe. Genetic analyses included karyotypes and genomic in situ hybridization, pollination to leek, genome size determination and nuclear rDNA and plastid DNA polymorphisms. Results revealed that this agriculturally interesting accession from China is a so far unknown variant within tetraploid A. ampeloprasum cultivated taxa. We also observed that great-headed garlic did not share derived states in the chloroplast with leek, revealing that this cultivated plant does not possess the cytoplasm of leek or garlic, while its 1C genome size was 17% bigger than those of studied leek and bulbous-leek accessions.

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

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