All species of the genus Populus (poplar, aspen) are dioecious, suggesting an ancient origin of this trait. Despite some empirical counter examples, theory suggests that nonrecombining sex-linked regions should quickly spread, eventually becoming heteromorphic chromosomes. In contrast, we show using whole-genome scans that the sex-associated region in Populus trichocarpa is small and much younger than the age of the genus. This indicates that sex determination is highly labile in poplar, consistent with recent evidence of ‘turnover’ of sex-determination regions in animals. We performed whole-genome resequencing of 52 P. trichocarpa (black cottonwood) and 34 Populus balsamifera (balsam poplar) individuals of known sex. Genomewide association...
Dioecy has evolved numerous times in plants, but heteromorphic sex chromosomes are apparently rare. ...
Abstract: When sex chromosomes stop recombining, they start to accumulate differences. The sex-limit...
The establishment of a region of suppressed recombination is a critical change during sex chromosome...
All species of the genus Populus (poplar, aspen) are dioecious, suggesting an ancient origin of this...
The genus Populus consists of dioecious woody species with largely unknown genetic mechanisms for ge...
The genus Populus consists of dioecious woody species with largely unknown genetic mechanisms for ge...
Genetic determination of gender is a fundamental developmental and evolutionary process in plants. ...
Most eukaryotes reproduce sexually and a wealth of different sex determination mechanisms have evolv...
Sex chromosomes are a very peculiar part of the genome that have evolved independently in many group...
The genus Populus is presented by dioecious species, and it became a promising object to study the g...
Although hundreds of plant lineages have independently evolved dioecy, i.e. separation of the sexes,...
Sex chromosomes can evolve when recombination is halted between a pair of chromosomes, and this can ...
This thesis reports the findings of four projects conducted to study the genomics of gender regulati...
Resistance genes (R-genes) are essential for long-lived organisms such as forest trees, which are ex...
Background: Evolutionary theory suggests that males and females may evolve sexually dimorphic phenot...
Dioecy has evolved numerous times in plants, but heteromorphic sex chromosomes are apparently rare. ...
Abstract: When sex chromosomes stop recombining, they start to accumulate differences. The sex-limit...
The establishment of a region of suppressed recombination is a critical change during sex chromosome...
All species of the genus Populus (poplar, aspen) are dioecious, suggesting an ancient origin of this...
The genus Populus consists of dioecious woody species with largely unknown genetic mechanisms for ge...
The genus Populus consists of dioecious woody species with largely unknown genetic mechanisms for ge...
Genetic determination of gender is a fundamental developmental and evolutionary process in plants. ...
Most eukaryotes reproduce sexually and a wealth of different sex determination mechanisms have evolv...
Sex chromosomes are a very peculiar part of the genome that have evolved independently in many group...
The genus Populus is presented by dioecious species, and it became a promising object to study the g...
Although hundreds of plant lineages have independently evolved dioecy, i.e. separation of the sexes,...
Sex chromosomes can evolve when recombination is halted between a pair of chromosomes, and this can ...
This thesis reports the findings of four projects conducted to study the genomics of gender regulati...
Resistance genes (R-genes) are essential for long-lived organisms such as forest trees, which are ex...
Background: Evolutionary theory suggests that males and females may evolve sexually dimorphic phenot...
Dioecy has evolved numerous times in plants, but heteromorphic sex chromosomes are apparently rare. ...
Abstract: When sex chromosomes stop recombining, they start to accumulate differences. The sex-limit...
The establishment of a region of suppressed recombination is a critical change during sex chromosome...