A Study of the Leaf Chromatograms of the London Plane and Its Putative Parent Species

1975 ◽  
Vol 93 (1) ◽  
pp. 234 ◽  
Author(s):  
Ju-Ying Hsiao ◽  
Hui-Lin Li
Keyword(s):  
Parent Species ◽  
Putative Parent ◽  
London Plane

Catasetum × sheyllae (Orchidaceae: Catasetinae), a new natural hybrid from Brazilian Amazon

Phytotaxa ◽  
2021 ◽  
Vol 527 (4) ◽  
pp. 257-265
Author(s):  
PATRICK DE CASTRO CANTUÁRIA ◽  
DAYSE RAIANE PASSOS KRAHL ◽  
AMAURI HERBERT KRAHL ◽  
GUY CHIRON ◽  
João Batista Fernandes Da Silva ◽  
...  
Keyword(s):  
Field Study ◽  
Brazilian Amazon ◽  
Morphological Features ◽  
Natural Hybridization ◽  
Parent Species ◽  
Natural Hybrid ◽  
Putative Parent

Natural hybridization has often been recorded within certain genera of orchids, one of them is Catasetum. During a field study in a forest de igapó in Brazilian Amazon, a new natural hybrid was found, it is here described as Catasetum × sheyllae. Its morphological features, mainly the structures of the lip, are intermediate between those of its putative parent species, C. boyi and C. garnettianum, both observed in sympatry.

Chromatographic Studies on the Red Horse-Chestnut (Aesculus X carnea) and Its Putative Parent Species

Brittonia ◽  
1973 ◽  
Vol 25 (1) ◽  
pp. 57 ◽  
Author(s):  
Ju-Ying Hsiao ◽  
Hui-Lin Li
Keyword(s):  
Horse Chestnut ◽  
Parent Species ◽  
Putative Parent

NATURAL PINE HYBRIDS IN ALBERTA

1949 ◽  
Vol 27c (5) ◽  
pp. 218-229 ◽  
Author(s):  
E. H. Moss
Keyword(s):  
Pinus Contorta ◽  
Mature Seed ◽  
Hybrid Population ◽  
Parent Species ◽  
Putative Parent ◽  
Diagnostic Characters ◽  
Field Evidence ◽  
Pine Hybrids

In central and northwestern Alberta, where the ranges of Pinus contorta var. latifolia and P. Banksiana overlap, there is abundant field evidence of hybridism between these species. Numerous trees have been found with cone and other characters more or less intermediate between those of the two species. These trees are generally found in proximity with, but rarely apart from, the putative parent species. Various diagnostic characters for the species are briefly evaluated m interpreting the polymorphic hybrid population. Characters of the mature seed cones are used to distinguish several pine types in the region and as a basis for a discussion of problems requiring further investigation.

Observations of Botrychium Xwatertonense and Its Putative Parent Species, B. hesperium and B. paradoxum

1996 ◽  
Vol 86 (1) ◽  
pp. 1 ◽  
Author(s):  
Kathleen Ahlenslager ◽  
Peter Lesica
Keyword(s):  
Parent Species ◽  
Putative Parent

scholarly journals Diversity of chromosomal composition in top onion (Allium × proliferum (Moench) Schrad. ex Willd.) accessions from the VIR in vitro collection

2020 ◽  
Vol 2 (3) ◽  
pp. 6-14
Author(s):  
G. I. Pendinen ◽  
V. E. Chernov
Keyword(s):  
Allium Cepa ◽  
Ploidy Level ◽  
Vegetative Propagation ◽  
5S Rdna ◽  
Rdna Locus ◽  
Allium Fistulosum ◽  
Parent Species ◽  
Putative Parent ◽  
25S Rdna

Background. Top onion, Allium × proliferum (Moench) Schrad. ex Willd., 1809 (2n=2x=16), is a species that is characterized by vegetative propagation by air or underground bulbs only. Accessions of this species have been shown to be hybrids of Allium cepa and Allium fistulosum (Fiskesjo, 1975; Vosa, 1976; Schubert et al., 1983; Puizina and Papes, 1999). Accessions of Allium × proliferum were obtained from various sources and conserved in the in vitro collection of VIR. However, their pedigree was unknown, therefore there was a need to determine the ploidy level and genomic composition of these accessions.Materials and Methods. Thirteen Allium × proliferum accessions from the VIR in vitro collection were studied. To characterize the ploidy level and genomic composition of the accessions, the research employed FISH with chromosome-specific markers (5S and 18S/25S rDNA) and GISH with differentially labeled DNA of the putative parent species, i.e., A. cepa and A. fistulosum.Results. According to GISH, all the studied accessions were hybrids of A. cepa and A. fistulosum. Most (10 out of 13) accessions were determined as diploid hybrids with eight A. cepa and eight A. fistulosum chromosomes. The accession К 3206 turned out to be a diploid 16-chromosome hybrid with eight A. cepa, seven A. fistulosum chromosomes and one rearranged chromosome. Accessions К 3205 and К 3202 were found to be polyploids. The A. × proliferum accession К 3202 contained seven A. cepa and 16 A. fistulosum chromosomes. The accession К 3205 is characterized by the presence of 16 chromosomes hybridizing with A. cepa DNA and 13 chromosomes hybridizing with A. fistulosum DNA. Only one chromosome of A. fistulosum in this accession was revealed to have a 5s rDNA locus.Conclusions. The above shows that the collection contains top onion accessions with karyotypic differences. 

Genetic variation in distant and inbred hybridization progenies from three sympodial bamboo parent species

2018 ◽  
Vol 30 (4) ◽  
pp. 1323-1329
Author(s):  
Jin-Ling Yuan ◽  
Jin-Jun Yue ◽  
Yuan-Biao Zhong ◽  
Xiao-Li Wu ◽  
Xiao-Ping Gu
Keyword(s):  
Genetic Variation ◽  
Parent Species

scholarly journals Tryptic phosphopeptides from whole casein. I. Preparation and analysis by fast protein liquid chromatography

1989 ◽  
Vol 56 (4) ◽  
pp. 603-611 ◽  
Author(s):  
Marcel A. Juillerat ◽  
Robert Baechler ◽  
Raphael Berrocal ◽  
Serge Chanton ◽  
Jean-Claude Scherz ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Gradient Elution ◽  
Fast Protein Liquid Chromatography ◽  
Parent Species ◽  
Net Charge ◽  
Phosphorylated Peptides ◽  
Salt Gradient

SummaryTryptic phosphopeptides were obtained from whole bovine casein by chromatography on the anion exchange resin QAE-Sephadex A 25. Salt gradient elution of the column allowed separation of non-phosphorylated peptides from phosphorylated species. The preparations obtained contained at least seven distinct phosphopeptides of which the following casein fragments were identified: αs1(43–58):2P, αs1(59–79): 5P, αs2(46–70): 4P, β(1–28): 4P, β(2–28): 4P, and β(33–48): 1P. Fast protein liquid chromatography (FPLC) on Mono Q HR 5/5 resin showed that the phosphopeptides were eluted in the same order as from the QAE-Sephadex resin. However, on the analytical column HR 5/5 the fragments αs1(59–79): 5P and β(2–28): 4P, having the same net charge under the conditions of chromatography, co-eluted, whereas they were at least partly separated on the preparative column HR 16/10. Following enzymic dephosphorylation, the peptides eluted at lower salt strength in the gradient. FPLC on Mono Q resin thus permitted dephosphorylation to be monitored and intermediates between the parent species and the fully dephosphorylated peptide to be identified.

Observations on the ecology of hybridisation in the clubmosses (Lycopodiaceae)

1985 ◽  
Vol 86 ◽  
pp. 245-251 ◽  
Author(s):  
Benjamin Øllgaard
Keyword(s):  
Male Gamete ◽  
Interspecific Hybridisation ◽  
Parent Species ◽  
Spore Dispersal ◽  
Population Densities ◽  
Ecological Conditions ◽  
Highly Effective ◽  
Subterranean Habitat

SynopsisEcological conditions for intergametophytic mating and interspecific hybridisation in the clubmosses are discussed. Several features, including the number of recorded hybrids, records of gametophyte population densities, and conditions for movement of the male gamete in the soil, indicate that intergametophytic mating in Lycopodium is not especially impeded by the subterranean habitat, as has been commonly assumed. The evidence from one site indicates highly effective spore dispersal, and a greater ecological tolerance than expected for the species involved. Two cases are discussed in which hybrids have been formed between ecologically and/or taxonomically very different parent species, in the absence of one parent sporophyte, or with one of the parent species sporophyte poorly adapted to the hybrid habitat. The protected, relatively uniform, subterranean gametophyte habitat is thought to account for successful gametophyte growth and hybridisation between species of widely different sporophyte ecology.

Hybrid crinoids in the fossil record (Early Mississippian, Phylum Echinodermata)

Paleobiology ◽  
1994 ◽  
Vol 20 (3) ◽  
pp. 362-367 ◽  
Author(s):  
William I. Ausich ◽  
David L. Meyer
Keyword(s):  
Fossil Record ◽  
Evolutionary Process ◽  
Parent Species ◽  
Probable Explanation ◽  
South Central ◽  
Most Probable Explanation ◽  
The Impact

Potential hybrid fossil crinoids, Eretmocrinus magnificus x Eretmocrinus praegravis, are identified from the Lower Mississippian Fort Payne Formation of south-central Kentucky. These are the first fossil hybrid crinoids identified, and one of very few examples of hybrids recognized in the fossil record. Eretmocrinus magnificus x E. praegravis specimens have shapes and calyx plate sculpturing that are morphologically intermediate between well-defined, distinct parent species. Suspected hybrids occur at localities where parent species co-occur and where the parent species are the most abundant; the hybrids occur at what may have been the distributional margins of the parent species; and the mixture of characters on suspected hybrids seems to be morphogenetically partitioned. Parent species are derived from separate lineages within Eretmocrinus, and hybridization is the most probable explanation for these morphologically intermediate specimens. This example highlights the need to consider hybridization as a potential interpretation of intermediate morphologies among fossils and raises questions concerning the impact of hybridization for our interpretation of the fossil record and the role of hybridization in the evolutionary process.

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