Salinda Sandamal^1,2,3,#, Asanka Tennakoon^1,#, Parakkrama Wijerathna¹, Song Ge^2,3, DABN Amarasekera⁴, Buddhi Marambe⁵, Sara M. Elwany⁶, Sobhy Sorour⁶, Ayman El Sabagh⁶, Mohamed M. Hassan⁷, Disna Ratnasekera^1,*

Phyton-International Journal of Experimental Botany, Vol.91, No.6, pp. 1269-1287, 2022, DOI:10.32604/phyton.2022.018983

Abstract Information on the genetic diversity of wild rice species in Sri Lanka is relatively meagre, though it plays a key role in crop improvement programs of cultivated rice (Oryza sativa L.). The present study was carried out to identify the morphological variation pattern of the wild populations of O. nivara in Sri Lanka. Seven populations (P1 to P7) collected from different agro-ecological regions were characterized in a common garden based on nine morphological traits. The findings revealed a high level of phenotypic variation between populations when compared to within a population. The most variable traits were the flag leaf panicle… More >

López-España RG¹, S Hernández-Verdugo¹, S Parra-Terraza¹, F Porras¹, Antonio Pacheco-Olvera¹, A Valdez-Ortiz², T Osuna-Enciso³, MD Muy-Rangel³

Phyton-International Journal of Experimental Botany, Vol.85, pp. 131-141, 2016, DOI:10.32604/phyton.2016.85.131

Abstract Wild pepper (Capsicum annuum L. var. glabriusculum) is a valuable genetic resource for food and agriculture. The patterns of variation of 12 morphological traits of 17 populations of wild pepper collected across a latitudinal and climate gradients in northwestern Mexico were analyzed in a uniform greenhouse experiment. The morphological traits data were axamined by univariate and multivarite analysis. The relationship between phenotypic variation and latitude of population origen was tested using linear regression analysis. We found high variation within and among populations for most of the measured traits. Populations were clearly differentiated by univariate analysis of variance and principal component… More >