Associations between sex-organ deployment and morph bias in related heterostylous taxa with different stylar polymorphisms
نویسندگان
چکیده
منابع مشابه
Reciprocal style polymorphisms are not easily categorised: the case of heterostyly in Lithodora and Glandora (Boraginaceae).
Interest in reciprocal floral polymorphisms, such as heterostyly, has increased in recent decades because they can be used as suitable model systems to study mechanisms of outbreeding and disassortative mating in plants. Heterostylous plants are characterised by the presence of discrete morphs that differ in sex organ position and in some other ancillary traits. As regards sex organ deployment,...
متن کاملBoth morph‐ and species‐dependent asymmetries affect reproductive barriers between heterostylous species
The interaction between floral traits and reproductive isolation is crucial to explaining the extraordinary diversity of angiosperms. Heterostyly, a complex floral polymorphism that optimizes outcrossing, evolved repeatedly and has been shown to accelerate diversification in primroses, yet its potential influence on isolating mechanisms remains unexplored. Furthermore, the relative contribution...
متن کاملAssociations between serotonin-related gene polymorphisms and panic disorder.
Studies suggest that vulnerability to panic attacks and panic disorder (PD) may be related to a deficient serotonin (5-HT) neurotransmission. In the present case-control study we investigated possible associations between PD phenotype and five candidate polymorphisms including 5-HT transporter (5-HTTLPR and VNTR), monoamine oxidase A (MAOA promoter region), tryptophan hydroxylase 1 (TPH1 218A/C...
متن کاملAssociations of common polymorphisms in GCKR with metabolic syndrome
Background: Metabolic syndrome (MetS) is characterized by a combination of cardio-metabolic risk factors. Given that genetic factors have been shown to contribute to individual susceptibility to MetS, the identification of genetic markers for disease risk is essential. Recent studies revealed that rs780094 and rs1260326 of glucokinase regulatory gene (GCKR) are associated with serum triglycerid...
متن کاملUnusual heterostyly: style dimorphism and self-incompatibility are not tightly associated in Lithodora and Glandora (Boraginaceae).
BACKGROUND AND AIMS Heterostyly is a floral polymorphism characterized by the reciprocal position of stamens and stigmas in different flower morphs in a population. This reciprocal herkogamy is usually associated with an incompatibility system that prevents selfing and intra-morph fertilization, termed a heteromorphic incompatibility system. In different evolutionary models explaining heterosty...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Botany
سال: 2016
ISSN: 0002-9122,1537-2197
DOI: 10.3732/ajb.1600345