Results 61 to 70 of about 1,430 (195)

Pollen and stigma size changes during the transition from tristyly to distyly inOxalis alpina(Oxalidaceae) [PDF]

open access: bronzePlant biology, 2017
Fernanda Baena‐Díaz   +4 more
openalex   +2 more sources

Gender specialisation and stigma height dimorphism in Mediterranean Lithodora fruticosa (Boraginaceae). [PDF]

open access: yes, 2017
Dimorphism in style height has evolved repeatedly in flowering plants, with some individuals having short and others long styles; in the case of distylous species, stigma position varies reciprocally with that of the anthers.
Pannell, J.R.
core   +1 more source

Distyly, Self-Incompatibility, and Evolution in Melochia [PDF]

open access: yesEvolution, 1967
The genus Melockia of the subfamily Hermannieae, Sterculiaceae, includes about 60 species which are widely distributed through the tropics, and, less extensively, through the temperate zone. An encounter with a distylic species, M. tomentosa L., on the desert island of Mona, suggested this study of selfand cross-incompatibility.
openaire   +2 more sources

Correlation between distyly and ploidy level in Damnacanthus (Rubiaceae) [PDF]

open access: yesAmerican Journal of Botany, 2004
Somatic chromosomes were observed in 661 individuals of 14 taxa, nine species and five varieties, of Damnacanthus (Rubiaceae). Chromosome numbers are reported for the first time for 13 taxa. Diploid (2n = 22) and tetraploid (2n = 44) counts were obtained. Distyly is reported for the first time for four species, D. angustifolius, D. henryi, D. labordei,
Akiyo, Naiki, Hidetoshi, Nagamasu
openaire   +2 more sources

Distylous traits in Cordia dodecandra and Cordia sebestena (Boraginaceae) from the Yucatan Peninsula

open access: yesBotan‪ical Sciences, 2014
Distyly is a genetically-controlled polymorphism with two floral morphs exhibiting spatial, reciprocal separation between stigmas and anthers; one morph has long styles and short stamens and the other short styles and long stamens.
César Canché-Collí, Azucena Canto
doaj   +1 more source

Variation in Sex Allocation and Floral Morphology in an Expanding Distylous Plant Hybrid Complex [PDF]

open access: yes, 2014
Premise of research. Sex allocation, the relative energy devoted to producing pollen, ovules, and floral displays, can significantly affect reproductive output and population dynamics.
Camp, Mieko   +4 more
core   +2 more sources

Floral development at multiple spatial scales in Polygonum jucundum (Polygonaceae), a distylous species with broadly open flowers. [PDF]

open access: yesPLoS ONE, 2014
Distyly, a special polymorph, has evolved in many groups of angiosperms and has attracted attention since Darwin's time. Development studies on distylous taxa have helped us to understand the evolutionary process of this polymorph, but most of these ...
Lan-Jie Huang   +2 more
doaj   +1 more source

Heterostyly in Goniolimon italicum (Plumbaginaceae), endemic to Abruzzo (central Apennines, Italy) [PDF]

open access: yes, 2015
Goniolimon italicum is an endemic species to central Apennines (Italy). Here we provide the first report of heterostyly in this species. Two morphological types were identified: an S-morph with stamen filaments longer than gynoecia, stigmas with a ...
Conti, Fabio   +3 more
core   +3 more sources

Evaluation of the symmetric effect of antagonists in the floral morphs of the distylic shrub Bouvardia ternifolia: a field study

open access: yesBotan‪ical Sciences, 2018
Background: Heterostyly is a genetic polymorphism characterized by a system of sporophyte auto-incompatibility in which the plant populations show two (distyly) or three (tristyly) floral morphs.
Luis Antonio Salinas-Esquivel   +2 more
doaj   +1 more source

Disassortative mating prevails in style-dimorphic Narcissus papyraceus despite low reciprocity and compatibility of morphs [PDF]

open access: yes, 2015
Evolution to reduce inbreeding can favor disassortative (inter-morph) over assortative (intramorph) mating in hermaphroditic sexually polymorphic plant species.
Arroyo, Juan   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy