@article{fdi:010085245,
  title = {{T}he auxin-response repressor {IAA}30 is down-regulated in reproductive tissues of apomictic {P}aspalum notatum},
  author = {{S}iena, {L}. {A}. and {A}zzaro, {C}. {A}. and {P}odio, {M}. and {S}tein, {J}. and {L}eblanc, {O}livier and {P}essino, {S}. {C}. and {O}rtiz, {J}. {P}. {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he capacity for apomixis in {P}aspalum notatum is controlled by a single-dominant genomic region, which shows strong synteny to a portion of rice chromosome 12 long arm. {T}he locus {LOC}_{O}s12g40890, encoding the {A}uxin/{I}ndole-3-{A}cetic {A}cid ({A}ux/{IAA}) family member {O}s{IAA}30, is located in this rice genomic segment. {T}he objectives of this work were to identify transcripts coding for {A}ux/{IAA} proteins expressed in reproductive tissues of {P}. notatum, detect the {O}s{IAA}30 putative ortholog and analyze its temporal and spatial expression pattern in reproductive organs of sexual and apomictic plants. {T}hirty-three transcripts coding for {AUX}/{IAA} proteins were identified. {P}redicted protein alignment and phylogenetic analysis detected a highly similar sequence to {O}s{IAA}30 (named as {P}n{IAA}30) present in both sexual and apomictic samples. {T}he expression assays of {P}n{IAA}30 showed a significant down-regulation in apomictic spikelets compared to sexual ones at the stages of anthesis and post-anthesis, representation levels negatively correlated with apospory expressivity and different localizations in sexual and apomictic ovules. {S}everal {P}n{IAA}30 predicted interactors also appeared differentially regulated in the sexual and apomictic floral transcriptomes. {O}ur results showed that an auxin-response repressor similar to {O}s{IAA}30 is down-regulated in apomictic spikelets of {P}. notatum and suggests a contrasting regulation of auxin signaling during sexual and asexual seed formation.},
  keywords = {apomixis ; {A}ux/{IAA} ; auxin ; plant reproductive development ; {P}aspalum notatum},
  booktitle = {},
  journal = {{P}lants},
  volume = {11},
  numero = {11},
  pages = {1472 [19 ]},
  year = {2022},
  DOI = {10.3390/plants11111472},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085245},
}