Identification and evidence of positive selection upon resistance gene analogs in cotton (Gossypium hirsutum L.)

Zambounis, Antonios; Ganopoulos, Ioannis; Kalivas, Apostolos; Tsaftaris, Athanasios; Madesis, Panagiotis

doi:10.1007/s12298-016-0362-2

Cited by 4 publications

(2 citation statements)

References 31 publications

(36 reference statements)

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“…Positive selection plays important roles in plant evolution and adaptation to biotic and abiotic stresses; gene expression and regulation changes have been postulated to be key determinants of the rates of adaptive evolution (Khan et al ., ; Paape et al ., ; Seeholzer et al ., ; Sun et al ., ; Zambounis et al ., ). The positively selected genes (PSGs) between G. australe and G. arboretum remain unknown.…”

Section: Resultsmentioning

confidence: 97%

Genome sequencing of the Australian wild diploid species Gossypium australe highlights disease resistance and delayed gland morphogenesis

Cai

Wang

et al. 2019

Plant Biotechnology Journal

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Summary The diploid wild cotton species Gossypium australe possesses excellent traits including resistance to disease and delayed gland morphogenesis, and has been successfully used for distant breeding programmes to incorporate disease resistance traits into domesticated cotton. Here, we sequenced the G. australe genome by integrating PacBio, Illumina short read, BioNano (DLS) and Hi‐C technologies, and acquired a high‐quality reference genome with a contig N50 of 1.83 Mb and a scaffold N50 of 143.60 Mb. We found that 73.5% of the G. australe genome is composed of various repeat sequences, differing from those of G. arboreum (85.39%), G. hirsutum (69.86%) and G. barbadense (69.83%). The G. australe genome showed closer collinear relationships with the genome of G. arboreum than G. raimondii and has undergone less extensive genome reorganization than the G. arboreum genome. Selection signature and transcriptomics analyses implicated multiple genes in disease resistance responses, including GauCCD7 and GauCBP1, and experiments revealed induction of both genes by Verticillium dahliae and by the plant hormones strigolactone (GR24), salicylic acid (SA) and methyl jasmonate (MeJA). Experiments using a Verticillium‐resistant domesticated G. barbadense cultivar confirmed that knockdown of the homologues of these genes caused a significant reduction in resistance against Verticillium dahliae. Moreover, knockdown of a newly identified gland‐associated gene GauGRAS1 caused a glandless phenotype in partial tissues using G. australe. The G. australe genome represents a valuable resource for cotton research and distant relative breeding as well as for understanding the evolutionary history of crop genomes.

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Section: Resultsmentioning

confidence: 97%

Genome sequencing of the Australian wild diploid species Gossypium australe highlights disease resistance and delayed gland morphogenesis

Cai

Wang

et al. 2019

Plant Biotechnology Journal

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“…A recent study by Zambounis and his colleagues [82] has delved into the evolutionary aspects of cotton resistance gene analogs (RGAs), unveiling signs of positive selection and potential functional implications. RGAs show great promise as functional markers in breeding programs aimed at bolstering cotton's resistance to Fusarium wilt.…”

Section: Detection and Genotyping For Disease Managementmentioning

confidence: 99%

Recent studies on Fusarium wilt in cotton

S. Ayubov,

Y. Abdurakhmonov,

K. Makamov

et al. 2024

Fusarium - Recent Studies

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Fusarium oxysporum has been a subject of intensive research since 1882, with over 200 studies published from key cotton-growing countries such as the United States, China, Uzbekistan, India, Pakistan, Australia, and Brazil. The present study has employed a diverse array of research methodologies and technological approaches, primarily emphasizing research publications disseminated within the past decade. It places specific emphasis on two key domains: Molecular Mapping and Genome-Wide Association Studies (GWAS), elucidating the evolutionary analysis transition from Simple Sequence Repeat (SSR) to Single Nucleotide Polymorphism (SNP) chip utilization. The creation of a comprehensive molecular map that incorporates Quantitative Trait Loci (QTLs) related to Fusarium and consolidates findings from several research groups, accompanied by figures and tables, serves to facilitate a more thorough understanding of the genetic architecture underlying Fusarium-related traits. An in-depth examination of recent advances in marker-assisted selection for traits conferring resistance to Fusarium oxysporum f. sp. vasinfectum (FOV), coupled with a comprehensive evaluation of the pertinent genes, offers valuable insights into the development of resistant cultivars and the underlying genetic mechanisms. This entails doing a critical review of recent relevant literature. Furthermore, this investigation examines the obstacles and potential associated with developing technologies.

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Integrated Genomic Designing and Insights for Disease Resistance and Crop Protection Against Pathogens in Cherry

Zambounis

Valasiadis

Boutsika

2022

Genomic Designing for Biotic Stress Resistant Fruit Crops

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Identification and evidence of positive selection upon resistance gene analogs in cotton (Gossypium hirsutum L.)

Cited by 4 publications

References 31 publications

Genome sequencing of the Australian wild diploid species Gossypium australe highlights disease resistance and delayed gland morphogenesis

Genome sequencing of the Australian wild diploid species Gossypium australe highlights disease resistance and delayed gland morphogenesis

Recent studies on Fusarium wilt in cotton

Integrated Genomic Designing and Insights for Disease Resistance and Crop Protection Against Pathogens in Cherry

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