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Titolo:
Identification of quantitative trait loci for adaxial and abaxial stomatalfrequencies in Oryza sativa
Autore:
Ishimaru, K; Shirota, K; Higa, M; Kawamitsu, Y;
Indirizzi:
Natl Inst Agrobiol Resources, Dept Plant Physiol, Tsukuba, Ibaraki 3058602, Japan Natl Inst Agrobiol Resources Tsukuba Ibaraki Japan 3058602 3058602, Japan Univ Ryukyus, Crop Sci Lab, Okinawa 9030213, Japan Univ Ryukyus Okinawa Japan 9030213 Crop Sci Lab, Okinawa 9030213, Japan
Titolo Testata:
PLANT PHYSIOLOGY AND BIOCHEMISTRY
fascicolo: 2, volume: 39, anno: 2001,
pagine: 173 - 177
SICI:
0981-9428(200102)39:2<173:IOQTLF>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEADING DATE; RICE; POPULATION;
Keywords:
Oryza sativa; QTL; stomatal frequency; yield;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Ishimaru, K Natl Inst Agrobiol Resources, Dept Plant Physiol, Kannondai 2-1-2, Tsukuba, Ibaraki 3058602, Japan Natl Inst Agrobiol Resources Kannondai2-1-2 Tsukuba Ibaraki Japan 3058602
Citazione:
K. Ishimaru et al., "Identification of quantitative trait loci for adaxial and abaxial stomatalfrequencies in Oryza sativa", PL PHYS BIO, 39(2), 2001, pp. 173-177

Abstract

Stomatal frequency is one of the main factors that determine photosynthetic ability and stomatal conductance. However, the genetic basis for stomatalfrequency is still poorly understood. The genetic relations between adaxial and abaxial stomatal frequencies have been studied in rice (Oryza sativa L.) with quantitative trait loci (QTL) analysis approach on a population ofbackcross inbred lines of japonica Nipponbare x indica Kasalath. Four QTLscontrolling adaxial and abaxial stomatal frequencies were identified. On chromosome 3 of rice, QTL for adaxial stomatal frequency overlapped that forabaxial stomatal frequency. There was a high correlation (r = 0.660, P < 0.01) between them, and the allele that increases the expression was contributed by Kasalath for both traits. These results suggest that the same gene may pleiotropically control the stomatal frequency on both surfaces of the leaf. QTLs for leaf rolling related to osmotic stress were also mapped. Theabsence of overlap in QTLs fur leaf rolling and stomatal frequency suggests that osmotic tolerance is at least partly independent. of stomatal frequency. The generic relationship between stomatal frequency and yield is also discussed. (C) 2001 Editions scientifiques et medicales Elsevier SAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 10:29:53