Ex situ conservation and characterization of the genetic diversity ofCastaneaspp.

2018 ◽  
pp. 1-6 ◽  
Author(s):  
M.G. Mellano ◽  
D. Torello-Marinoni ◽  
P. Boccacci ◽  
D. Donno ◽  
A.K. Cerutti ◽  
...  
2017 ◽  
Vol 41 (3) ◽  
pp. 255-262 ◽  
Author(s):  
Ana Veruska Cruz da Silva ◽  
Julie Anne Espíndola Amorim ◽  
Marina Ferreira da Vitória ◽  
Ana da Silva Ledo ◽  
Allivia Rouse Carregosa Rabbani

ABSTRACT The state of Sergipe is the largest mangaba producer, which is a fruit native to Brazil, and has cultural, social and economic importance in its area of occurrence. It is an endangered species due to human actions, and despite its economic potential, there are still no commercial plantations. The study was carried out in order to characterize trees, fruits and the genetic diversity of natural populations of mangaba in Sergipe, Brazil. Fruits from Abaís Beach/Estância (AB) presented, on average, twice the vitamin C content (414.81 mg of vit. C/100g), when compared with the others. The use of ISSR primers was efficient in estimating the genetic similarity of populations. The primers clustered the populations of mangaba according to their origin, which indicates the genetic diversity of mangaba and their isolation. The results can be used to guide the selection of individuals in situ and ex situ conservation actions of these genetic resources.


Author(s):  
Ana Veruska Cruz da Silva ◽  
Jéssica Monalisa S. P. Oliveira ◽  
Milena Nascimento Cardoso ◽  
Ana Letícia Sirqueira Nascimento ◽  
Tássia Fernanda S. N. Soares ◽  
...  

2016 ◽  
Vol 28 (6) ◽  
pp. 965-970
Author(s):  
Ved Prakash Kumar ◽  
Anupam Shrivastwa ◽  
Parag Nigam ◽  
Dhyanendra Kumar ◽  
Surendra Prakash Goyal

2018 ◽  
Vol 65 (3-4) ◽  
pp. 153-160
Author(s):  
Oz Barazani ◽  
Nir Hanin ◽  
Prabodh Kumar Bajpai ◽  
Yoni Waitz ◽  
Michal Barzilai ◽  
...  

The winter annuals Brassica tournefortii and Raphanus raphanistrum (Brassicaceae) share similar habitats and life-history traits, but differ in their reproduction system (self-compatibility vs. self-incompatibility, respectively). The two phylogenetically close species offer means to assess the effect of reproductive biology on genetic diversity between and within populations. In general, genetic diversity between populations of B. tournefortii was higher than that found between populations of R. raphanistrum, while higher genetic diversity indices were evident within populations of R. raphanistrum. In addition, the results of pairwise genetic distances indicated that the genetic distances between populations can be associated to the species’ reproductive biology and not to the population’s distribution pattern. We discuss whether knowledge of reproductive and habitat characteristics can be used to predict genetic diversity when planning sampling scheme for ex situ conservation.


2014 ◽  
Vol 148 (1) ◽  
pp. 119-127 ◽  
Author(s):  
Efrain Acosta-Diaz ◽  
Ismael Hernandez-Torres ◽  
Mario D. Amador-Ramirez ◽  
Jose S. Padilla-Ramirez ◽  
Francisco Zavala-García ◽  
...  

2006 ◽  
Vol 7 (4) ◽  
pp. 507-514 ◽  
Author(s):  
Ross Barnett ◽  
Nobuyuki Yamaguchi ◽  
Ian Barnes ◽  
Alan Cooper

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 626
Author(s):  
Ming-Yue Zhang ◽  
Xiao-Hui Zhang ◽  
James Ayala ◽  
Rong Hou

Although the ex situ conservation breeding program has basically created self-sustaining populations and genetic diversity in captive giant pandas (Ailuropoda melanoleuca) [...]


Author(s):  
Innocenzo Muzzalupo ◽  
Antonella Muto, Giuliana Badolati ◽  
Aulona Veizi ◽  
Adriana Chiappetta

The increasing interest in olive varieties with high productivity and quality is the basis of modern olive growing. The molecular characterization of olive varieties is essential to maximize the genetic diversity in the in situ and ex situ collections of the olive germplasm. The importance of studies aimed at identification and selection of genotypes that meet the requirements for plant nursery certification, for oils traceability and to preserve genotypes that are not widespread from risks of extinction, is evident. In this context, DNA fingerprinting represents a valid tool because the productivity and quality of olive oil are intrinsic characteristics of the original varieties. To date, the Albanian olive-growing heritage has been little studied and the number of varieties has not yet been well defined. As a consequence, it doesn’t a precise characterization of the Albanian genetic entities. The aim of this work was to contribute in clarifying the identity of the Albanian olive cultivars, using the SSR molecular markers. We have genotyped olive trees at the level of nine nuclear microsatellite loci or SSR, pre-selected among those present in the literature and we have identified 38 unique genotypes. It has not been possible to establish a clear correlation between clustering of plants, depending on molecular profiles, and the geographical distribution of origin or maturation period or the intended use of drupes. However, our results show a high genetic diversity and a high discrimination capacity of the tested SSR markers.  


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