@article{fdi:010087727,
  title = {{M}apping of {QTL}s associated with biological nitrogen fixation traits in peanuts ({A}rachis hypogaea {L}.) using an interspecific population derived from the cross between the cultivated species and its wild ancestors},
  author = {{N}zepang, {D}. {T}. and {G}ully, {D}jamel and {N}guepjop, {J}. {R}. and {Z}azou, {A}. {Z}. and {T}ossim, {H}. {A}. and {S}ambou, {A}. and {R}ami, {J}. {F}. and {H}ocher, {V}al{\'e}rie and {F}all, {S}. and {S}vistoonoff, {S}ergio and {F}onceka, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}eanuts ({A}rachis hypogaea {L}.) are an allotetraploid grain legume mainly cultivated by poor farmers in {A}frica, in degraded soil and with low input systems. {F}urther understanding nodulation genetic mechanisms could be a relevant option to facilitate the improvement of yield and lift up soil without synthetic fertilizers. {W}e used a subset of 83 chromosome segment substitution lines ({CSSL}s) derived from the cross between a wild synthetic tetraploid {A}i{A}d ({A}rachis ipaensis x {A}rachis duranensis)(4x) and the cultivated variety {F}leur11, and evaluated them for traits related to {BNF} under shade-house conditions. {T}hree treatments were tested: without nitrogen; with nitrogen; and without nitrogen, but with added0 {B}radyrhizobium vignae strain {ISRA}400. {T}he leaf chlorophyll content and total biomass were used as surrogate traits for {BNF}. {W}e found significant variations for both traits specially linked to {BNF}, and four {QTL}s (quantitative trait loci) were consistently mapped. {A}t all {QTL}s, the wild alleles decreased the value of the trait, indicating a negative effect on {BNF}. {A} detailed characterization of the lines carrying those {QTL}s in controlled conditions showed that the {QTL}s affected the nitrogen fixation efficiency, nodule colonization, and development. {O}ur results provide new insights into peanut nodulation mechanisms and could be used to target {BNF} traits in peanut breeding programs.},
  keywords = {peanut ; symbiosis ; wild species ; sustainable agriculture ; plant ; nutrition},
  booktitle = {},
  journal = {{G}enes},
  volume = {14},
  numero = {4},
  pages = {797 [20 p.]},
  year = {2023},
  DOI = {10.3390/genes14040797},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087727},
}