@article{PAR00029427,
  title = {{A}n {XY} chromosome system in {L}aurus azorica, an endemic dioecious laurel from the {A}zores},
  author = {{B}ranco, {C}. and {R}oxo, {G}. and {C}hapoix, {I}. and {R}ego, {R}. {M}. {C}. and {T}essarotto, {H}ugo and {S}antoni, {S}. and {M}oura, {M}. and {M}arais, {G}. {A}. {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}aker's law posits that self-fertilization facilitates colonization, a key concept for understanding population dynamics and the evolution of sexual systems in plants. {H}owever, the prevalence of dioecious species (those with separate sexes) on oceanic islands presents a notable exception to this law, raising questions that have persisted since the initial debate between {B}aker and {C}arlquist nearly 60 years ago. {D}espite a number of important studies, we still lack comprehensive explanations for this intriguing pattern. {P}rogress in this area may come from integrating various approaches, including botany, ecology, population genetics, and genomics. {I}n this study, we aim to establish the {L}aurus genus as a model for investigating dioecy in oceanic islands. {A}s a first step towards this goal, we have characterized the sex-determination type of {L}aurus azorica-a dioecious laurel endemic to the {A}zores-using a unique methodology to analyze sex chromosomes. {O}ur findings indicate that {L}. azorica possesses an {XY} system that emerged approximately 5-10 million years ago, before the split with {L}aurus nobilis, its mainland counterpart. {F}or the next steps, we plan to extend our analysis to {L}. nobilis and {L}aurus novocanariensis (endemic to {M}adeira and the {C}anary {I}slands) and conduct additional genomic studies to comprehensively characterize the sex-determination systems of these species, as well as their evolutionary dynamics and implications for the colonization of the {M}acaronesian islands.},
  keywords = {{B}aker's law ; sexual systems ; reproductive assurance ; colonization ; oceanic islands ; dioecy ; sex chromosomes},
  booktitle = {},
  journal = {{J}ournal of {E}volutionary {B}iology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[ p.]},
  ISSN = {1010-061{X}},
  year = {2025},
  DOI = {10.1093/jeb/voaf032},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00029427},
}