Aspen hybridization: Parents’ compatibility and seedlings’ growth

Abstract

First results of new trembling aspen (Populus tremula L.) special factorial crosses are presented. At first, productive parent trees were selected: five maternal and five paternal trees without symptoms of heart rot and one tree with fruiting bodies of this fungal attack. The results of phenotypic and genotypic analyses of parent trees, their compatibility, and growth performance are presented. The analysis of the hybrid seedlings’ survival and their growth performance on open ground are shown. Estimates of general and specific combining abilities of the parent trees were carried out and potentially best hybrid families and seedlings were selected.

The Development of Populus alba L. and Populus tremula L. Species Specific Molecular Markers Based on 5S rDNA Non-Transcribed Spacer Polymorphism

“…This result may have importance in the genetics of populations, as these plants are often used as model objects. Usually, SSR marker sets are applied in such experiments [19,20]. The use of the presented marker system may decrease the volume of PCRs, thereby increasing the speed of research and reducing their cost.…”

“…Thus, the development of biochemical and DNA molecular markers has been actively applied to work with poplar species and their hybrids [16,17]. Different types of DNA markers were previously developed, though microsatellite and single nucleotide polymorphism (SNP) markers are the most commonly used [18][19][20][21]. Also, 5S rDNA non-transcribed spacer (NTS) based markers (sequence-characterized amplified region (SCAR) markers) have been recently designed for the identification of some poplars (P. nigra, P. deltoides, and P. × canadensis) in the Aigeiros section [22].…”

Development of Populus alba L. and Populus tremula L. Species Specific Molecular Markers Based on the 5S rDNA Non-transcribed Spacer Polymorphism

“…This result may have an important value in genetics of populations, as these plants are often used as model objects. Usually, the SSR marker sets are applied in such experiments [18,19]. The use of the presented marker system may decrease the volume of PCRs, increase the speed of the works and reduce their cost.…”

“…The different types of DNA markers were previously developed. The microsatellite and single nucleotide polymorpfism (SNP) markers are most commonly used [17][18][19][20]. Also, the 5S rDNA non-transcribed spacer (NTS) based markers (sequence-characterized amplified region (SCAR) markers) have been recently designed for identification of some poplars (P. nigra, P. deltoides and P. × canadensis) in Aigeiros section [21].…”

Allotriploid Clones of Gray Popular (Populus Canescens Sm.) Selected in the Floodplain of the Khoper and Don Rivers – Large Achievement in Selective Forestry of the Department of Forest Cultures

“…В квартале 93 Хоперского заповедника гигантские столетние деревья тополя белого женского пола примыкают к куртине мощ- ADVANCES IN CURRENT NATURAL SCIENCES № 2, 2020   AGRICULTURAL SCIENCES (06.01.00, 06.03.00)  ных деревьев осины мужского пола. Здесь автор наблюдал подрост гибридов, возникших, вероятно, от скрещивания тополя белого и осины, то есть этот участок является как бы естественной лабораторией спонтанной гибридизации тополей [1]. Спонтанные гибриды тополей в Западной Сибири изучают Б.В.…”