Welcome To Website IAS

Hot news
Achievement

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)

VIFOTEC Award

- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Centres
Website links
Vietnamese calendar
Library
Visitors summary
 Curently online :  9
 Total visitors :  7524135

The genome and population genomics of allopolyploid Coffea arabica reveal the diversification history of modern coffee cultivars
Saturday, 2024/04/20 | 05:59:18

Jarkko SalojärviAditi RambaniZhe YuRomain GuyotSusan StricklerMaud LepelleyCui WangSitaram RajaramanPasi RastasChunfang ZhengDaniella Santos MuñozJoão MeidanisAlexandre Rossi PaschoalYves BawinTrevor J. KrabbenhoftZhen Qin WangSteven J. FleckRudy AusselLaurence BellangerAline CharpagneCoralie FournierMohamed KassamGregory LefebvreSylviane MétaironDéborah MoineMichel RigoreauJens StoltePerla HamonEmmanuel CouturonChristine Tranchant-DubreuilMinakshi MukherjeeTianying LanJan EngelhardtPeter StadlerSamara Mireza Correia De LemosSuzana Ivamoto SuzukiUcu SumiratChing Man WaiNicolas DauchotSimon Orozco-AriasAndrea GaravitoCatherine KiwukaPascal MusoliAnne NalukengeErwan GuichouxHavinga ReinoutMartin SmitLorenzo Carretero-PauletOliveiro Guerreiro FilhoMasako Toma BraghiniLilian PadilhaGustavo Hiroshi SeraTom RuttinkRobert HenryPierre MarracciniYves Van de PeerAlan AndradeDouglas DominguesGiovanni GiulianoLukas MuellerLuiz Filipe PereiraStephane PlaisanceValerie PoncetStephane RombautsDavid SankoffVictor A. AlbertDominique CrouzillatAlexandre de Kochko & Patrick Descombes

Nature Genetics volume 56, pages721–731 (2024)

Abstract

Coffea arabica, an allotetraploid hybrid of Coffea eugenioides and Coffea canephora, is the source of approximately 60% of coffee products worldwide, and its cultivated accessions have undergone several population bottlenecks. We present chromosome-level assemblies of a di-haploid C. arabica accession and modern representatives of its diploid progenitors, C. eugenioides and C. canephora. The three species exhibit largely conserved genome structures between diploid parents and descendant subgenomes, with no obvious global subgenome dominance. We find evidence for a founding polyploidy event 350,000–610,000 years ago, followed by several pre-domestication bottlenecks, resulting in narrow genetic variation. A split between wild accessions and cultivar progenitors occurred ~30.5 thousand years ago, followed by a period of migration between the two populations. Analysis of modern varieties, including lines historically introgressed with C. canephora, highlights their breeding histories and loci that may contribute to pathogen resistance, laying the groundwork for future genomics-based breeding of C. arabica.

 

See https://www.nature.com/articles/s41588-024-01695-w

 

Fig. 1 | Patterns of synteny, fractionation and gene loss in C. arabica and its progenitor species C. canephora and C. eugenioides. a, Corresponding syntenic blocks between CA subgenomes subCC (orange) and subEE (blue), and with the CC (orange) and CE (blue) genomes. b, The base pairs in intergenic DNA in synteny block gaps caused by fractionation in a subCC–subEE comparison, compared with numbers of base pairs in homoeologous unfractionated regions, as a function of numbers of consecutive genes deleted. c, Gene retention rates in synteny blocks plotted along subCC chromosome 2; subCC is plotted in orange and subEE in blue. The green box indicates the pericentromeric region. CA, C. arabica; CC, C. canephora; CE, C. eugenioides.

Back      Print      View: 59

[ Other News ]___________________________________________________
  • Genome-wide analysis of autophagy-associated genes in foxtail millet (Setaria italica L.) and characterization of the function of SiATG8a in conferring tolerance to nitrogen starvation in rice.
  • Arabidopsis small nucleolar RNA monitors the efficient pre-rRNA processing during ribosome biogenesis
  • XA21-specific induction of stress-related genes following Xanthomonas infection of detached rice leaves.
  • Reducing the Use of Pesticides with Site-Specific Application: The Chemical Control of Rhizoctonia solani as a Case of Study for the Management of Soil-Borne Diseases
  • OsJRL, a rice jacalin-related mannose-binding lectin gene, enhances Escherichia coli viability under high-salinity stress and improves salinity tolerance of rice.
  • Production of lipopeptide biosurfactants by Bacillus atrophaeus 5-2a and their potential use in microbial enhanced oil recovery.
  • GhABF2, a bZIP transcription factor, confers drought and salinity tolerance in cotton (Gossypium hirsutum L.).
  • Resilience of cassava (Manihot esculenta Crantz) to salinity: implications for food security in low-lying regions.
  • Cellulose synthase complexes act in a concerted fashion to synthesize highly aggregated cellulose in secondary cell walls of plants
  • No adverse effects of transgenic maize on population dynamics of endophytic Bacillus subtilis strain B916-gfp
  • Identification and expression analysis of OsLPR family revealed the potential roles of OsLPR3 and 5 in maintaining phosphate homeostasis in rice
  • Functional analysis of molecular interactions in synthetic auxin response circuits
  • Titanium dioxide nanoparticles strongly impact soil microbial function by affecting archaeal nitrifiers.
  • Inducible Expression of the De-Novo Designed Antimicrobial Peptide SP1-1 in Tomato Confers Resistance to Xanthomonas campestris pv. vesicatoria.
  • Toward combined delignification and saccharification of wheat straw by a laccase-containing designer cellulosome
  • SNP-based discovery of salinity-tolerant QTLs in a bi-parental population of rice (Oryza sativa)
  • Pinpointing genes underlying the quantitative trait loci for root-knot nematode resistance in palaeopolyploid soybean by whole genome resequencing.
  • Transcriptome- Assisted Label-Free Quantitative Proteomics Analysis Reveals Novel Insights into Piper nigrum -Phytophthora capsici Phytopathosystem.
  • Brassinosteroids participate in the control of basal and acquired freezing tolerance of plants
  • Rapid hyperosmotic-induced Ca2+ responses in Arabidopsis thaliana exhibit sensory potentiation and involvement of plastidial KEA transporters

 

Designed & Powered by WEBSO CO.,LTD