Cloning of cDNA encoding COMT from wheat which is differentially expressed in lodging-sensitive and -resistant cultivars | Zendy

Qing-Hu Ma | Zendy

Open Access

Cloning of cDNA encoding COMT from wheat which is differentially expressed in lodging-sensitive and -resistant cultivars

Author(s) -

Qing-Hu Ma

Publication year - 2002

Publication title -

journal of experimental botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.616

H-Index - 242

eISSN - 1460-2431

pISSN - 0022-0957

DOI - 10.1093/jxb/erf102

Subject(s) - complementary dna , biology , gene , cloning (programming) , cultivar , messenger rna , genetics , botany , microbiology and biotechnology , computer science , programming language

In the present study two cDNA fragments were cloned by nested-PCR using degenerate primers for COMT and found to be 93% identical at the nucleotide level. The deduced amino acid sequence of the two cDNAs showed a high degree of identity with COMT from other plants and were most similar to COMTs from monocots. RNA gel blot hybridization demonstrated that the wheat COMT gene W-cm5-1 was expressed in stem, root and leaf tissues. W-cm5-1 mRNA levels in the developing wheat stem were associated with the stem lodging character in two wheat cultivars. These results suggest that the action of the wheat COMT gene may be related to stem rigidity and lodging character in wheat.

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