The infesting habit of the red rice (Oryza sativa subsp. japonica var. sylvatica, 2n=24) and its diffusion have become a serious problem in rice cultivation because of seed shattering, which reduces rice yield and grain quality. The purpose of this work is to characterize red rice chromosomes and to reveal any differences from the karyotype of cultivated rice Loto (Oryza sativa subsp. japonica) used as reference. The first results, obtained by using a detailed chromosome analysis by means of a chromosome image method (CHIA-EA), showed that in the red rice various translocations occur which always involve a chromosome of the first pair together with other elements of the set. Occasional aneuploid cells with 23 (2n-1) and 25 (2n+1) chromosomes were also observed.

Identification and characterization of somatic chromosomes of red rice (Oryza sativa subsp. japonica var. sylvatica) by means of a computerized chromosome image method (CHIA-EA) / A.C. Sparacino, C. Halfer, E. Strada, F. Tano, D. Ditto. - In: JOURNAL OF GENETICS & BREEDING. - ISSN 0394-9257. - 58:4(2004), pp. 295-300.

Identification and characterization of somatic chromosomes of red rice (Oryza sativa subsp. japonica var. sylvatica) by means of a computerized chromosome image method (CHIA-EA)

A.C. Sparacino
Primo
;
F. Tano
Penultimo
;
D. Ditto
Ultimo
2004

Abstract

The infesting habit of the red rice (Oryza sativa subsp. japonica var. sylvatica, 2n=24) and its diffusion have become a serious problem in rice cultivation because of seed shattering, which reduces rice yield and grain quality. The purpose of this work is to characterize red rice chromosomes and to reveal any differences from the karyotype of cultivated rice Loto (Oryza sativa subsp. japonica) used as reference. The first results, obtained by using a detailed chromosome analysis by means of a chromosome image method (CHIA-EA), showed that in the red rice various translocations occur which always involve a chromosome of the first pair together with other elements of the set. Occasional aneuploid cells with 23 (2n-1) and 25 (2n+1) chromosomes were also observed.
Weeds ; Oryza sativa ; Chromosomes ; Karyotypes ; Chromosome translocation ; Aneuploidy ; Image analysis ; Mitosis ; Roots ; Laboratory experimentation
Settore AGR/02 - Agronomia e Coltivazioni Erbacee
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/13351
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? ND
social impact