ABSTRACT Loss of genetic variability in natural populations affects negatively the adaptive and evolutive process plant species. In this context, objective work was to evaluate existing between within P. platycephala, using biometric characters fruits seeds physiological seedlings, and, thus, assess potential for selection mother trees, indicate areas seed collection use, generate support conse...

Abstract Using microsatellite loci, we assessed the mating system and genetic diversity of dioecious tropical tree Genipa americana in a natural population (NP) progeny test (PT). For NP, also estimated paternity correlation within among fruits mean pollen dispersal distance. As expected for species, all offspring originated from outcrossing ( t = 1). Mating relatives (1 − s ) r p were variable...

ABSTRACT Precision silviculture is being developed to manage and improve Calophyllum brasiliense, a tree species associated with wet swampy soils. This study estimated genetic parameters for growth traits in response soil resistance as an auxiliary tool identifying selecting progenies adapted water-saturated was undertaken progeny test of C. brasiliense which 1,200 seedlings grown from seeds co...

Stem cell self-renewal and differentiation are coordinated to maintain tissue homeostasis and prevent cancer. Mutations causing stem cell proliferation are traditionally the focus of cancer studies. However, the contribution of the differentiating stem cell progenies in tumorigenesis is poorly characterized. Here we report that loss of the SOX transcription factor, Sox21a, blocks the differenti...

In Norway spruce, environmental conditions during the reproduction can greatly influence progeny performance. We found that the temperature during post meiotic megagametogenesis (zygotic embryogenesis) and seed maturation shift the growth cycle program of the embryos in the seeds, resulting in significant and long lasting phenotypic changes in the progeny. Traits that are affected include the t...