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Titolo:
Assessment of variation in Aceria cajani using analysis of rDNA ITS regions and scanning electron microscopy: implications for the variability observed in host plant resistance to pigeonpea sterility mosaic disease
Autore:
Kumar, PL; Fenton, B; Duncan, GH; Jones, AT; Sreenivasulu, P; Reddy, DVR;
Indirizzi:
Scottish Crop Res Inst, Invergowrie DD2 5DA, Scotland Scottish Crop Res Inst Invergowrie Scotland DD2 5DA ie DD2 5DA, Scotland Int Crops Res Inst Semi Arid Trop, Patancheru 502324, Andhra Pradesh, India Int Crops Res Inst Semi Arid Trop Patancheru Andhra Pradesh India 502324 Sri Venkateswara Univ, Tirupati 517502, Andhra Pradesh, India Sri Venkateswara Univ Tirupati Andhra Pradesh India 517502 Pradesh, India
Titolo Testata:
ANNALS OF APPLIED BIOLOGY
fascicolo: 1, volume: 139, anno: 2001,
pagine: 61 - 73
SICI:
0003-4746(2001)139:1<61:AOVIAC>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
CECIDOPHYOPSIS MITES ACARI; MULTIPLE SEQUENCE ALIGNMENT; RIBOSOMAL DNA; ERIOPHYIDAE; IDENTIFICATION; INHERITANCE; PATHOGEN; REVEALS; REPEATS; CLUSTAL;
Keywords:
pigeonpea; sterility mosaic; rDNA; PCR; morphology; biodiversity; resistance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Jones, AT Scottish Crop Res Inst, Invergowrie DD2 5DA, Scotland Scottish Crop Res Inst Invergowrie Scotland DD2 5DA , Scotland
Citazione:
P.L. Kumar et al., "Assessment of variation in Aceria cajani using analysis of rDNA ITS regions and scanning electron microscopy: implications for the variability observed in host plant resistance to pigeonpea sterility mosaic disease", ANN AP BIOL, 139(1), 2001, pp. 61-73

Abstract

Aceria cajani on pigeonpea (Cajanus cajan) is the vector of the agent of pigeonpea sterility mosaic disease (PSMD), a very damaging virus-like disease in the Indian subcontinent. PCR was used to amplify A. cajani nuclear ribosomal DNA (rDNA) internal transcribed spacers (ITS) and associated rDNA genes. They were assessed for variation in this genome region by nucleotide sequencing and RFLP. A. cajani-specific rDNA primers are described. Several A. cajani populations were collected from pigeonpea plants from various PSMD endemic locations in India, Nepal and Myanmar. No significant variation was identified in rDNA regions, or in morphological features. These results suggest strongly that A. cajani on pigeonpea across the Indian subcontinentconstitutes one species and that no other Aceria species and probably no A. cajani biotypes that differ in vectoring ability are involved in the transmission of the agent of PSMD. The implications of these findings for the variability observed in PSMD-resistant pigeonpea genotypes across various locations in India are discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 22:12:47