Morphological characteristics of the experimental allopolyploid Triticum durum × Haynaldia villosa (2n = 42)

1987 ◽  
Vol 65 (9) ◽  
pp. 1948-1951 ◽  
Author(s):  
Agostino Stefani ◽  
Paolo Meletti ◽  
Antonino Onnis

The experimental allopolyploid (2n = 42) Triticum durum Desf. cv. Cappelli (2n = 28) × Haynaldia villosa (L.) Schur. (2n = 14) obtained in 1972 has now reached the 12th generation. In the present paper, morphological data on the allopolyploid plants from the 8th to the 10th generation are reported. A comparison between the characters of the allopolyploid and its parents is also presented.

Genome ◽  
2007 ◽  
Vol 50 (4) ◽  
pp. 373-384 ◽  
Author(s):  
M. Maccaferri ◽  
S. Stefanelli ◽  
F. Rotondo ◽  
R. Tuberosa ◽  
M.C. Sanguineti

The determination of genetic relatedness among elite materials of crop species allows for more efficient management of breeding programs and for the protection of breeders’ rights. Seventy simple sequence repeats (SSRs) and 234 amplified fragment length polymorphisms (AFLPs) were used to profile a collection of 58 durum wheat ( Triticum durum Desf.) accessions, representing the most important extant breeding programs. In addition, 42 phenotypic traits, including the morphological characteristics recommended for the official distinctness, uniformity, and stability tests, were recorded. The correlation between the genetic similarities obtained with the 2 marker classes was high (r = 0.81), whereas lower values were observed between molecular and phenotypic data (r = 0.46 and 0.56 for AFLPs and SSRs, respectively). Morphological data, even if sampled in high numbers, largely failed to describe the pattern of genetic similarity, according to known pedigree data and the indications provided by molecular markers.


2018 ◽  
Vol 5 (1) ◽  
pp. 54-63
Author(s):  
Simeon Lukanov ◽  
Georgi Popgeorgiev ◽  
Nikolay Tzankov

AbstractWater frog mating calls from two localities were studied and analyzed. Recordings were made in the summer of 2010 at the Arkutino swamp near the town of Primorsko and at the Vurbitza River near the town of Momchilgrad. A total of 154 calls were analyzed and the results suggested the presence of both the Marsh frog (Pelophylax ridibundus) and the Levant frog (Pelophylax bedriagae) in both sites, with the former being more frequent in Vurbitza River, and the latter – in Arkutino. At Vurbitza, we also captured and measured 2 specimens, which morphological characteristics differed from P. ridibundus and matched those of P. bedriagae. These are the first localities for P. bedriagae in Bulgaria.


Phytotaxa ◽  
2021 ◽  
Vol 501 (1) ◽  
pp. 151-161
Author(s):  
ER-HUAN ZANG ◽  
MING-XU ZHANG ◽  
WEN-LE WANG ◽  
CHUN-HONG ZHANG ◽  
MIN-HUI LI

In May 2020, a new taxon of Euphorbia, Euphorbiaceae was collected from a dry hillside of Dongsheng District, Ordos City, Inner Mongolia. The morphological characteristics of the specimens analyzed differ from those of the known Euphorbia species from this region; therefore, we suspected this may be a new species, and we set to analyze the ITS2 sequences of some Euphorbia species. The results show that the new taxon belongs to the sect. Esula of Euphorbia subg. Esula. It is similar to Euphorbia esula (description from Flora of China) but does not belong to the same species. Concomitantly, plant morphological data and pollen morphology results show significant differences between the new taxon, E. esula and E. caesia, a finding that supports the delimitation of this new taxon, which is named Euphorbia mongoliensis in accordance with its geographical distribution.


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