The genus Phaseolus (Fabaceae) consists of some 50 species, all of which are distributed in the Americas. Four of these contain cultigens. P. vulgaris (common bean), P. lunatus (lima bean), P. acutifolius (tepary bean), P. coccineus subsp. coccineus (runner bean); and P. coccineus subsp, polyanthus (no English vernacular name). Biochemical markers--phaseolin seed storage protein and isozymes--h...

This study is devoted to assess sex ratio variation among 33 populations of the gynodioecious Beta vulgaris ssp. maritima in Brittany (France) and to explore the causes of this variation. We showed that three different CMS (cytoplasmic male sterility) cytotypes occurred in populations, but strongly differed for their frequencies and the frequency of their associated nuclear restorer alleles (wh...

The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), highly prefers to oviposit on yellow rocket, Barbarea vulgaris (R. Br.) (Cruciferae) var. arcuata , despite larvae not being able to survive on it, suggesting it may have potential as a trap crop. In a no-choice greenhouse experiment, P. xylostella laid 28% more eggs on B. vulgaris than on cabbage. Within the B. vulgaris...

Bu çalışmada kıyı pancarı (Beta vulgaris subsp. maritima (L.) Arcang) bitkisinin in-vitro koşullarda farklı eksplantlarının değişik bitki büyüme düzenleyicisi (Kinetin ve Indol bütirik asit) kombinasyonlarında rejenerasyon yeteneklerinin belirlenmesi amaçlanmıştır. Kinetin (KIN) Indol-3-bütirik asit (İBA)’in dozları (0; 0,5; 1,0; 1,5 2,0 mg/L) ile hazırlanan besi ortamlarında hipokotil, boğum k...

Thymus hyemalis L. and Spanish T. vulgaris subsp. vulgaris shrubs are characterized by a great chemical intraspecific variability among plants. This fact makes it difficult to detect real changes occurring in their essential oil composition during the vegetative cycle. Because of this, clones of T. hyemalis and T. vulgaris were used to monitor seasonal variations in their aromatic composition o...

Abstract This study explores the food plant spectrum of sugar beet weevil ( Asproparthenis punctiventris Germar; Coleoptera: Curculionidae), one most important pests Beta vulgaris subsp. Altissima group). It examines potential various weeds and other plants to maintain populations A. adults larvae outside fields. To this end, leaf consumption females males on twelve Amaranthaceae six Polygonace...

Obtaining a viable and fertile beet hybrid resulting from wild cultivated sugar crosses under Moroccan conditions is challenging. To deal with hybridization, barriers in beet, such as concordance of flowering period between biannual annual subspecies, aptitude according to vernalization requirement, genotype incompatibility sterility, should be overcome. In our study, interspecific hybrids were...

Natural selection, random processes and gene flow are known to generate sex ratio variations among sexually polymorphic plant populations. In gynodioecious species, in which hermaphrodites and females coexist, the relative effect of these processes on the maintenance of sex polymorphism is still up for debate. The aim of this study was to document sex ratio and cytonuclear genetic variation at ...

Plant mating systems are known to influence population genetic structure because pollen and seed dispersal are often spatially restricted. However, the reciprocal outcomes of population structure on the dynamics of polymorphic mating systems have received little attention. In gynodioecious sea beet (Beta vulgaris ssp. maritima), three sexual types co-occur: females carrying a cytoplasmic male s...