@article{fdi:010092515,
  title = {{ZW} sex chromosome structure in {A}mborella trichopoda},
  author = {{C}arey, {S}.{B}. and {A}k{\¨o}zbek, {L}. and {L}ovell, {J}.{T}. and {J}enkins, {J}. and {H}ealey, {A}.{L}. and {S}hu, {S}. and {G}rabowski, {P}. and {Y}occa, {A}. and {S}tewart, {A}. and {J}ones, {T}. and {B}arry, {K}. and {R}ajasekar, {S}. and {T}alag, {J}. and {S}cutt, {C}. and {L}owry, {P}.{P}. and {M}unzinger, {J}{\'e}r{\^o}me and {K}nox, {E}.{B}. and {S}oltis, {D}.{E}. and {S}oltis, {P}.{S}. and {G}rimwood, {J}. and {S}chmutz, {J}. and {L}eebens-{M}ack, {J}. and {H}arkess, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ex chromosomes have evolved hundreds of times across the flowering plant tree of life; their recent origins in some members of this clade can

shed light on the early consequences of suppressed recombination, a crucial step in sex chromosome evolution. {A}mborella trichopoda, the sole species

of a lineage that is sister to all other extant flowering plants, is dioecious with a young {ZW} sex determination system. {H}ere we present a

haplotype-resolved genome assembly, including highly contiguous assemblies of the {Z} and {W} chromosomes. {W}e identify a ~3-megabase sex-determination region

({SDR}) captured in two strata that includes a ~300-kilobase inversion that is enriched with repetitive sequences and contains a homologue of the {A}rabidopsis

{METHYLTHIOADENOSINE} {NUCLEOSIDASE} ({MTN}1-2) genes, which are known to be involved in fertility. {H}owever, the remainder of the {SDR} does not show patterns

typically found in non-recombining {SDR}s, such as repeat accumulation and gene loss. {T}hese findings are consistent with the hypothesis that dioecy is

derived in {A}mborella and the sex chromosome pair has not significantly degenerated.},
  keywords = {},
  booktitle = {},
  journal = {{N}ature {P}lants},
  volume = {10},
  numero = {12},
  pages = {1944--1954},
  ISSN = {2055-0278},
  year = {2024},
  DOI = {10.1038/s41477-024-01858-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092515},
}