scholarly journals Effect of Plant Sex (dioecism) on the Performance ofApocnemidophorus pipitzi(Coleoptera: Curculionidae), A Stem Boring Weevil of Brazilian Peppertree, Schinus Terebinthifolia

2018 ◽  
Vol 101 (1) ◽  
pp. 135-137 ◽  
Author(s):  
James P. Cuda ◽  
Judy L. Gillmore ◽  
Bolivar R. Garcete-Barrett
Keyword(s):  
Plant Sex ◽  
Stem Boring Weevil

A rapid method for sex identification in Cannabis sativa using High Resolution Melt (HRM) analysis.

Botany ◽  
2021 ◽  
Author(s):  
Erin Jacqueline Gilchrist ◽  
Daniela Hegebarth ◽  
Shumin Wang ◽  
Teagen D. Quilichini ◽  
Jason Sawler ◽  
...  
Keyword(s):  
High Resolution ◽  
Rapid Method ◽  
X Chromosome ◽  
Cannabis Sativa ◽  
Sex Identification ◽  
Male Plant ◽  
High Resolution Melt ◽  
Male And Female ◽  
High Resolution Melt Analysis ◽  
Plant Sex

We report the identification of two SNPs in Cannabis sativa that are associated with female and male plant sex phenotypes, and are located on the top arm of the X chromosome. High Resolution Melt analysis was used to develop and validate a novel, rapid method for sex identification in medical/recreational cannabis as well as in hemp. This method can distinguish between dioecious male (XY) and dioecious female (XX) cannabis plants with 100% accuracy, and can also be used to differentiate between male and female Humulus lupulus (hop) plants.

scholarly journals Pleiotropic effects of sex-determining genes in the evolution of dioecy in two plant species

2019 ◽  
Vol 286 (1913) ◽  
pp. 20191805 ◽  
Author(s):  
Takashi Akagi ◽  
Deborah Charlesworth
Keyword(s):  
Theoretical Models ◽  
Ancestral State ◽  
Relative Importance ◽  
Sexual Antagonism ◽  
Dioecious Plant ◽  
Dioecious Species ◽  
Dioecious Plants ◽  
Sexual Dimorphisms ◽  
Evolution Of Dioecy ◽  
Plant Sex

One reason for studying sex chromosomes of flowering plants is that they have often evolved separate sexes recently, and the genomes of dioecious species may not yet have evolved adaptations to their changes from the ancestral state. An unstudied question concerns the relative importance of such adaptation, versus the effects of the mutations that led to separate sexes in the first place. Theoretical models for such an evolutionary change make the prediction that the mutations that created males must have sexually antagonistic effects, not only abolishing female functions, but also increasing male functions relative to the ancestral functional hermaphrodites. It is important to test this critical assumption. Moreover, the involvement of sexual antagonism also implies that plant sex-determining genes may directly cause some of the sexual dimorphisms observed in dioecious plants. Sex-determining genes are starting to be uncovered in plants, including species in the genera Diospyros and Actinidia (families Ebenaceae and Actinidiaceae, respectively). Here, we describe transgenic experiments in which the effects of the very different male-determining genes of these two dioecious species were studied in a non-dioecious plant, Nicotiana tabacum . The results indeed support the critical assumption outlined above.

scholarly journals Bee foraging preferences on three willow ( Salix ) species: Effects of species, plant sex, sampling day and time of day

2020 ◽  
Vol 177 (3) ◽  
pp. 333-345
Author(s):  
Alex Mosseler ◽  
John Major ◽  
Don Ostaff ◽  
John Ascher
Keyword(s):  
Time Of Day ◽  
Species Effects ◽  
Foraging Preferences ◽  
Bee Foraging ◽  
Plant Sex

scholarly journals Plasticity and within plant sex-ratio variation in monoecious Emex spinosa

2014 ◽  
Vol 38 ◽  
pp. 258-267 ◽  
Author(s):  
Regina BERJANO ◽  
Montserrat ARISTA ◽  
María TALAVERA ◽  
María Jesús ARIZA ◽  
Pedro Luis ORTIZ
Keyword(s):  
Sex Ratio ◽  
Ratio Variation ◽  
Plant Sex
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