Results 51 to 60 of about 1,430 (195)
Cordia subcordata (Boraginaceae), a distylous species on oceanic coral islands, is self-compatible and pollinated by a passerine bird [PDF]
Background and aims – Distyly is usually rare on oceanic islands, which is probably due to the difficulty for distylous plants to colonize those islands.
Xiangping Wang +3 more
doaj +3 more sources
Reproductive traits that function in pollinator attraction may be reduced or lost during evolutionary transitions from outcrossing to selfing. Although floral scent plays an important role in attracting pollinators in outcrossing species, few studies ...
Gui Zeng +3 more
semanticscholar +1 more source
A loss-of-alleles model for the evolution of distyly [PDF]
Distyly is characterized by a diallelic incompatibility system. Crowe (1964) hypothesized that this has arisen by a loss of alleles from multiallelic systems. I have examined a mechanism for such a loss in a simulated population with sporophytic incompatibility and four alleles at the incompatibility locus.
Gayle Muenchow
openalex +2 more sources
The genetics of distyly and homostyly in Turners ulmifolia L. (Turneraceae) [PDF]
Turnera ulmifolia L. is a polymorphic complex of diploid, tetraploid and hexaploid varieties. Diploids and tetraploids are distylous and hexaploids homostylous. A controlled crossing programme demonstrated that in diploids distyly is controlled by a single locus with two alleles. Long-styled plants are ss and short-styled plants can be either Ss or SS.
Joel S. Shore, Spencer C. H. Barrett
openalex +2 more sources
A general stochastic model for sporophytic self-incompatibility [PDF]
Disentangling the processes leading populations to extinction is a major topic in ecology and conservation biology. The difficulty to find a mate in many species is one of these processes.
Billiard, Sylvain, Tran, Viet Chi
core +5 more sources
Reproductive Ecology of Distylous Shoreside Polygonum criopolitanum Hance
In this study, distyly was clearly confirmed in Polygonum criopolitanum Hance, which exhibited strict self-incompatibility. Unlike other distylous species, style-morph ratios of P.
Ming-Lin Chen +3 more
doaj +1 more source
What ecological factors favor the shift from distyly to homostyly? A study from the perspective of reproductive assurance [PDF]
Xianfeng Jiang +3 more
openalex +2 more sources
Heterostyly: speciation within a species [PDF]
Almost all organisms in nature show nonrandom mating to different degrees. Two extreme results of nonrandom mating are speciation and sexual differentiation.
AJ Richards +27 more
core +2 more sources
It is hypothesized that in heterostylous plant species, standardization of signals of floral attraction between different morphs is advantageous, encouraging flower visitors to switch between morphs.
Xiaoyue Wang, Yan Chen, Yin Yi
doaj +1 more source
FlowerMate: Multidimensional reciprocity and inaccuracy indices for style-polymorphic plant populations. [PDF]
Abstract Premise Heterostyly in plants promotes pollen transfer between floral morphs, because female and male sex organs are located at roughly reciprocal heights within the flowers of each morph. Reciprocity indices, which assess the one‐dimensional variation in the height of sex organs, are used to define the phenotypic structure of heterostyly in ...
Simón-Porcar V +3 more
europepmc +2 more sources

