Tree-like pines on the Mshana peat bog in the Gorgany Mountains: a trace of Pinus uliginosa migration in the East Carpathians?

Abstract

The taxonomic position of the population of tree-like, mostly polycormic individuals of pines from the Mshana peat bog in the Gorgany Mountains (East Carpathians, Ukraine) has been studied on the basis of the morphological characteristics of cones and needles, and anatomical characteristics of the needles. These features have been compared with the surrounding Pinus mugo population as well as P. uliginosa, P. mugo, P. sylvestris and P. uncinata from natural populations of the taxa. Tree-like individuals were found to have the most similar needles to P. uliginosa, but most similar cone characteristics to P. mugo. It was concluded, that the tree-like population has a relic character and can present the trace of the early migration of P. uliginosa from the West and its hybridisation with P. mugo.

Molecular and paleo‐climatic data uncover the impact of an ancient bottleneck on the demographic history and contemporary genetic structure of endangered Pinus uliginosa

“…It is worth noting, however, that this result was strongly driven by unusually low genetic variation found in population UL_MS from Ukraine. Its distinct character at biometric traits and low level of variation at mtDNA was reported earlier (Boratyńska et al, 2010; Łabiszak et al, 2019). Furthermore, contrary to predictions, we failed to detect signatures of inbreeding using nSRR data in any of the P. uliginosa populations based on formal statistical tests.…”

De l’origine des Pins de montagne européens

“…Le Subalpin constitue l'optimum bioclimatique de Pinus uncinata.M ais on rencontreé galement le Pinàcrochets sur les tourbières de stations abyssales dans toute l'étendue de son aireg éographique, tout comme, de son côté, le Pinm ugo.C ependant en Europe centrale, c'est souvent Pinus uliginosa (10) (photo 2d, p. 251) qui occupe cette niche, aussi bien en Bavièreq u'en Bohême, Sudètes et Silésie, ainsi qu'en de rares sites de l'arcc arpatique, où ses traces témoigneraient d'une ancienne migration du Pind es marais vers l'est (Boratyńska et al, 2010).…”