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RAPID DUPLICATION AND LOSS OF NBS-ENCODING GENES IN EUROSIDS II

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dc.contributor.author MEMON, SHABANA
dc.contributor.author SI, WEINA
dc.contributor.author GU, LONGJIANG
dc.contributor.author YANG, SIHAI
dc.contributor.author ZHANG, XIAOHUI
dc.date.accessioned 2022-10-24T11:15:14Z
dc.date.available 2022-10-24T11:15:14Z
dc.date.issued 2015-10-24
dc.identifier.citation Shabana, M., Si, W., Gu, L., Yang, S., & Zhang, X. (2015). Rapid duplication and loss of NBS-encoding genes in Eurosids II. Pakistan Journal of Botany, 47(5), 1783-1792. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/13613
dc.description.abstract Eurosids basically evolved from the core Eudicots ‘Rosids’. The Rosids consist of two large assemblages, Eurosids I (Fabids) and Eurosids II (Malvids), which belong to the largest group of Angiosperms, comprising of >40,000 and ~15,000 species, respectively. Although the evolutionary patterns of the largest class of disease resistance genes consisting of a nucleotide binding site (NBS) and leucine-rich repeats (LRRs) have been studied in many species, systemic research of NBSencoding genes has not been performed in different orders of Eurosids II. Here, five Eurosids II species, Gossypium raimondii, Theobroma cacao, Carica papaya, Citrus clementina, and Arabidopsis thaliana, distributing in three orders, were used to gain insights into the evolutionary patterns of the NBS-encoding genes. Our data showed that frequent copy number variations of NBS-encoding genes were found among these species. Phylogenetic tree analysis and the numbers of the NBSencoding genes in the common ancestor of these species showed that species-specific NBS clades, including multi-copy and single copy numbers are dominant among these genes. However, not a single clade was found with only five copies, which come from all of the five species, respectively, suggesting rapid turn-over with birth and death of the NBS-encoding genes among Eurosids II species. In addition, a strong positive correlation was observed between the Toll/interleukin receptor TIR) type NBS-encoding genes and species-specific genes, indicating rapid gene loss and duplication. Whereas, nonTIR type NBS-encoding genes in these five species showed two distinct evolutionary patterns. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Botanical Society, University of Karachi en_US
dc.subject NBS-encoding genes en_US
dc.subject Evolution en_US
dc.subject Eurosids II en_US
dc.subject Fast gene birth en_US
dc.subject death en_US
dc.subject Distinct evolutionary patterns en_US
dc.title RAPID DUPLICATION AND LOSS OF NBS-ENCODING GENES IN EUROSIDS II en_US
dc.type Article en_US


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