BREEDING SYSTEM AND POPULATION STRUCTURE OF ARMERIA MARITIMA (MILL.) WILLD. ON A ZINC‐LEAD MINE

Abstract

SUMMARYUsing marker genes the breeding system (mating type gene) and the structure (hairy stalk gene) of a zinc-lead mine population of Armeria marititna, an insect-pollinated plant, was studied i?t situ. Strict allogamy oeeurs in the population in nature although this population shows selffertility in experimental garden plots. The population is divided into sulj-populations differing in the frequency of hairy stalked individuals. Gene flow between these sub-populations is very low (if any) so that the differences, which are likely to have originated by ehance, remain eonstant through generations.

Lower selfing rates in metallicolous populations than in non-metallicolous populations of the pseudometallophyteNoccaea caerulescens(Brassicaceae) in Southern France

“…In addition, after the initial results of Antonovics (1968) , replicated by Cuguen et al. (1989) and Lefèbvre (1970) (but see Lefèbvre, 1973 , 1976 ; Dulya and Mikryukov, 2015 ), the accumulated empirical evidence did not provide overall support to the idea of a general and strong association between selfing and plant local adaptation (for two meta-analyses, see Leimu and Fischer, 2008 ; Hereford, 2010 ).…”

Morphological and genetic distinctiveness of metallicolous and non‐metallicolous populations of Armeria maritima s.l. (Plumbaginaceae) in Poland

“…The species is highly variable morphologically and thus numerous intraspecific classifications have been elaborated for the taxon. In most of Europe it is an obligatory outbreeding species with a dimorphic incompatibility system, but this can break down, leading to the emergence of facultative selffertile plants (Baker 1966;Lefèbvre 1973Lefèbvre , 1976Kornaś & Medwecka-Kornaś 2002), as found in some European M populations (Lefèbvre 1972(Lefèbvre , 1976Richards et al 1989;Vekemans et al 1992after Lauranson et al 1995 and influencing their genetic variability.…”