Differential response and genetic analysis of acidic stress tolerance, with particular reference to aluminium stress tolerance in triticale

2001 ◽  
pp. 88-89
Author(s):  
X. G. Zhang ◽  
R. S. Jessop ◽  
F. Ellison
2021 ◽  
Author(s):  
Johann Huber ◽  
Peter Westermeier ◽  
Volker Mohler ◽  
Evelin Willner ◽  
Stephan Hartmann

2008 ◽  
Vol 191 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Beatriz Ruiz-Díez ◽  
Susana Fajardo ◽  
Miguel Angel Puertas-Mejía ◽  
María del Rosario de Felipe ◽  
Mercedes Fernández-Pascual

Plants ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1034 ◽  
Author(s):  
Apostolis Grigoriou ◽  
Georgios Tsaniklidis ◽  
Marianna Hagidimitriou ◽  
Nikolaos Nikoloudakis

Cypriot vineyards are considered as one among the earliest niches of viticulture and a pivotal hub for the domestication and dissemination of grapevine. The millennial presence of Vitis spp. in this Eastern Mediterranean island has given rise to a plethora of biotypes that have not been adequately characterized, despite their unique attributes and stress tolerance. This ancient germplasm also has an additional value since it survived the phylloxera outbreak; hence, it possesses a large amount of genetic diversity that has been unnoticed. In order to provide useful insights to the lineage of Cypriot vineyards, a two-year-spanning collection of centennial grapevine cultivars mostly regarded to belong to four indigenous variety clusters (“Mavro”, “Xynisteri”, “Maratheftiko”, and “Veriko”) was initiated. There were 164 accessions across the broader Commandaria wine zone sampled and characterized using a universal microsatellite primer set. Genetic analysis indicated that considered indigenous Cypriot germplasm has a polyclonal structure with a high level of heterozygosity. Moreover, several lineages or unexplored varieties may exist, since a larger than considered number of discrete genotypes was discovered. Furthermore, it was established that grapevine lineages in Cyprus were shaped across eras via clonal, as well as, sexual propagation. The special attributes of the Cypriot landscape are discussed.


Genetics ◽  
1995 ◽  
Vol 141 (3) ◽  
pp. 1135-1145
Author(s):  
P A Peterson

Abstract The En/Spm transposable element has 13 exons. Eleven of the exons contribute to the 2.5-kb transcript (tnpA) that encodes the TNPA protein. The other two large exons contribute to a 6-kb transcript (tnpD) that encodes the TNPD protein. The TNPA protein conditions the genetically determined suppressor function (S) and the TNPD protein along with the TNPA protein provides the mutator (M) function. The limits of the DNA En/Spm element sequences responsible for the two functions (S and M) have previously been tested by studies with transgenic systems and two mutant derivatives of En/Spm. Experiments reported here expand on the conclusions derived from studies with the two mutant derivatives En2 and Spm-w 8011. By using an appropriate reporter allele, the mutator function of En2, though impaired, shows a perceptible mutator expression. A less impaired (partially deleted vs. complete subterminal motifs) reporter allele will elicit expression from a limited amount of transposase. This demonstrates that the carboxy terminus is not essential for M function. The suppressor function of En2 is limited when various doses of both transposase-contributing alleles, as well as reporter alleles, are tested. The basis of the differences between suppressible and nonsuppressible alleles is also discussed.


2018 ◽  
Vol 61 (2) ◽  
pp. 155-167 ◽  
Author(s):  
Xianchen Zhang ◽  
Honghong Wu ◽  
Lingmu Chen ◽  
Yeyun Li ◽  
Xiaochun Wan

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