Mapping chromosomal regions associated with anther indehiscence with exerted stigmas in CRI-48 and Jasmine 85 cross of rice ( Oryza sativa L).

Autor: Abebrese SO; CSIR-Savanna Agricultural Research Institute, P.O. Box TL 52, Tamale, Ghana., Amoah NKA; Africa Rice Centre, Headquarters, M'bé Research Station. 01 B.P 2551, Bouaké o1, Cote d'Ivoire., Dartey PKA; CSIR-Crops Research Institute, P. O. Box 3785, Fumesua, Ghana., Bimpong IK; Africa Rice Centre, Headquarters, M'bé Research Station. 01 B.P 2551, Bouaké o1, Cote d'Ivoire., Akromah R; Department of Crop and Soil Sciences, KNUST, Kumasi, Ghana., Gracen VE; West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana., Offei SK; West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana., Danquah EY; West Africa Centre for Crop Improvement, University of Ghana, Legon, Ghana.
Jazyk: angličtina
Zdroj: Heliyon [Heliyon] 2021 Mar 13; Vol. 7 (3), pp. e06483. Date of Electronic Publication: 2021 Mar 13 (Print Publication: 2021).
DOI: 10.1016/j.heliyon.2021.e06483
Abstrakt: Anther indehiscence in certain wide crosses combines male sterility with stigma exertion, a phenomenon that is desirable for hybrid rice seed production. This study sought to identify chromosomal region(s) that combine anther indehiscence with exerted stigmas. A mapping population consisting of 189 BC 1 F 1 plants was derived from a cross between CRI-48 and Jasmine 85 and backcrossing the resulting F 1 to Jasmine 85. Contrary to the three complementary genes mode of inheritance reported earlier, a single locus ( AI6-1 ) was mapped on chromosome 6 at 27.4 cM for anther indehiscence with exerted stigmas through a mixed model-based composite interval mapping (MCIM). This locus was flanked by two single nucleotide polymorphism (SNP) markers, K_ID6002884 and K_ID6003341 within a range of 23.1-28.9 cM. The allele at the locus was contributed by the CRI-48 parent which has Oryza glaberrima ancestry. This locus is suggested to control anther indehiscence and stigma exertion through pleiotropic gene action or cluster of genes.
(© 2021 The Author(s).)
Databáze: MEDLINE