» Articles » PMID: 12296956

A Genetic Method to Resolve Gender Complements Investigations on Sex Ratios in Rumex Acetosa

Overview
Journal Mol Ecol
Date 2002 Sep 26
PMID 12296956
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

The perennial dioecious weed, Rumex acetosa, possesses sex chromosomes (XX in females, XY1Y2 in males). Yet, the operational sex ratios are female-biased. Until now, sex ratio studies in R. acetosa, as in most plants, have relied on data obtained at sexual maturity. To resolve gender among the seeds and nonflowering plants of R. acetosa, a genetic method involving a DNA marker located on both Y chromosomes has now been developed and applied. The results suggest that the sex ratios are about 1 : 1 in the whole seed pool, but that a significant female bias develops by the time of flowering. Since the age of sexually mature plants is two years or more, the time frame during which the female bias present at sexual maturity develops can be several years. It appears that male seeds germinate at a lower rate and males suffer from a greater mortality during the years-long lifespan of R. acetosa. However, there are no considerable sex-related differences in vegetative vigour.

Citing Articles

SCAR Marker for Gender Identification in Date Palm ( L.) at the Seedling Stage.

Al-Qurainy F, Al-Ameri A, Khan S, Nadeem M, Gaafar A, Tarroum M Int J Genomics. 2018; 2018:3035406.

PMID: 30417007 PMC: 6207878. DOI: 10.1155/2018/3035406.


No evidence of sexual niche partitioning in a dioecious moss with rare sexual reproduction.

Bisang I, Ehrlen J, Korpelainen H, Hedenas L Ann Bot. 2015; 116(5):771-9.

PMID: 26359424 PMC: 4590334. DOI: 10.1093/aob/mcv133.


The influence of demography and local mating environment on sex ratios in a wind-pollinated dioecious plant.

Pickup M, Barrett S Ecol Evol. 2013; 3(3):629-39.

PMID: 23532761 PMC: 3605851. DOI: 10.1002/ece3.465.


Sex-specific SCAR markers in the dioecious plant Rumex nivalis (Polygonaceae) and implications for the evolution of sex chromosomes.

Stehlik I, Blattner F Theor Appl Genet. 2003; 108(2):238-42.

PMID: 13679980 DOI: 10.1007/s00122-003-1425-7.