@article{zhu_gowda_kuraparthy_2024, title={Fine mapping and targeted genomic analyses of photoperiod-sensitive gene (<i>GB_PPD1</i>) in Pima cotton (<i>Gossypium barbadense</i> L.)}, volume={4}, ISSN={["1435-0653"]}, DOI={10.1002/csc2.21250}, abstractNote={Abstract Cotton grown in the United States are day‐length insensitive annuals and are grown under long‐day summers. Photoperiod sensitivity, present in tropical wild and landraces endemic to the center of origin and diversity, is a major barrier for the introgression of tropical gene pool into the US cotton. Previously, we mapped the major photoperiod response locus Gb_Ppd1 on chromosome D06 of Pima cotton ( Gossypium barbadense L.). In the current study, an F 2 population of 2112 gametes was used to fine map the Gb_Ppd1 locus. Two sequence‐tagged‐site and nine kompetitive allele‐specific polymerase chain reaction (KASP) markers were developed and the Gb_Ppd1 locus was fine mapped to 1.1 cM region flanked by novel markers 17‐KASP‐8, 17‐KASP‐10, and 15‐PR‐10A. The closely linked markers identified 2.10 Mb region in the G. barbadense genome that contained 18 putative gene sequences. A candidate gene Gbar_D06G014560 showed high homology to VASCULAR PLANT ONE ZINC FINGER PROTEIN 1 involved in photoperiodism in Arabidopsis . We evaluated the diagnostic polymorphisms for the flanking markers on a diversity panel of 91 Pima accessions. These markers would be useful in marker‐assisted selection of photoperiod response in cotton breeding. Further, quantitative gene expression analysis indicated that the CONSTANS ( CO )/ FLOWERING LOCUS T ( FT ) system is conserved in the photoperiod response pathway in Pima cotton, while CO and FT are likely not the causal genes underlying flowering time at the Gb_Ppd1 locus. The Gb_Ppd1 gene may be an upstream regulatory sequence in the FT gene pathway that controls photoperiodism in photoperiod‐sensitive cotton by affecting the CO / FT interaction under long‐day‐length conditions.}, journal={CROP SCIENCE}, author={Zhu, Linglong and Gowda, S. Anjan and Kuraparthy, Vasu}, year={2024}, month={Apr} }
 @article{shrestha_zhang_gowda_abdelraheem_jones_kuraparthy_2023, title={Identification of quantitative trait loci for fiber quality, yield, and plant height traits in Upland cotton}, volume={3}, ISSN={["1435-0653"]}, DOI={10.1002/csc2.20937}, abstractNote={Abstract}, journal={CROP SCIENCE}, author={Shrestha, Navin and Zhang, Kuang and Gowda, S. Anjan and Abdelraheem, Abdelraheem and Jones, Don C. and Kuraparthy, Vasu}, year={2023}, month={Mar} }
 @article{gowda_shrestha_harris_phillips_fang_sood_zhang_bourland_bart_kuraparthy_2022, title={Identification and genomic characterization of major effect bacterial blight resistance locus (BB-13) in Upland cotton (Gossypium hirsutum L.)}, volume={10}, ISSN={["1432-2242"]}, url={https://publons.com/wos-op/publon/54751063/}, DOI={10.1007/s00122-022-04229-2}, abstractNote={Identification and genomic characterization of major resistance locus against cotton bacterial blight (CBB) using GWAS and linkage mapping to enable genomics-based development of durable CBB resistance and gene discovery in cotton. Cotton bacterial leaf blight (CBB), caused by Xanthomonas citri subsp. malvacearum (Xcm), has periodically been a damaging disease in the USA. Identification and deployment of genetic resistance in cotton cultivars is the most economical and efficient means of reducing crop losses due to CBB. In the current study, genome-wide association study (GWAS) of CBB resistance using an elite diversity panel of 380 accessions, genotyped with the cotton single nucleotide polymorphism (SNP) 63 K array, and phenotyped with race-18 of CBB, localized the CBB resistance to a 2.01-Mb region in the long arm of chromosome D02. Molecular genetic mapping using an F6 recombinant inbred line (RIL) population showed the CBB resistance in cultivar Arkot 8102 was controlled by a single locus (BB-13). The BB-13 locus was mapped within the 0.95-cM interval near the telomeric region in the long arm of chromosome D02. Flanking SNP markers, i04890Gh and i04907Gh of the BB-13 locus, identified from the combined linkage analysis and GWAS, targeted it to a 371-Kb genomic region. Candidate gene analysis identified thirty putative gene sequences in the targeted genomic region. Nine of these putative genes and two NBS-LRR genes adjacent to the targeted region were putatively involved in plant disease resistance and are possible candidate genes for BB-13 locus. Genetic mapping and genomic targeting of the BB13 locus in the current study will help in cloning the CBB-resistant gene and establishing the molecular genetic architecture of the BB-13 locus towards developing durable resistance to CBB in cotton.}, journal={THEORETICAL AND APPLIED GENETICS}, publisher={Springer Science and Business Media LLC}, author={Gowda, S. Anjan and Shrestha, Navin and Harris, Taylor M. and Phillips, Anne Z. and Fang, Hui and Sood, Shilpa and Zhang, Kuang and Bourland, Fred and Bart, Rebecca and Kuraparthy, Vasu}, year={2022}, month={Oct} }