Identification of mutants for abnormal pollen development in rice

Yoshiyuki Yamagata; Kazuyuki Doi; Hideshi Yasui; Atsushi Yoshimura

doi:10.1270/jsbbs.57.331

Identification of mutants for abnormal pollen development in rice

Yoshiyuki Yamagata, Kazuyuki Doi, Hideshi Yasui, Atsushi Yoshimura

Agricultural Bioresource Sciences

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

To gain a comprehensive understanding of the genetic regulation of male gametogenesis, we screened and identified mutants for abnormal pollen development in rice (Oryza sativa L.). We gamma-irradiated spikelets of a japonica rice cultivar, Taichung 65, just before and after anthesis. Among 1,000 M₂ lines, 24 lines were identified as mutants for pollen sterility. Progeny tests in M₃ demonstrated that pollen sterility in 12 lines was controlled by single recessive genes, designated sps1-sps12 (sporophytic pollen sterility). In the remaining 12 lines, pollen semi-sterility was under the control of gametophytic genes, designated gps1-gps12 (gametophytic pollen sterility). Linkage analysis revealed that sps6, sps9, and sps12 were mapped on chromosomes 3, 9, and 7, respectively.

Original language	English
Pages (from-to)	331-337
Number of pages	7
Journal	Breeding Science
Volume	57
Issue number	4
DOIs	https://doi.org/10.1270/jsbbs.57.331
Publication status	Published - Dec 1 2007

All Science Journal Classification (ASJC) codes

Agronomy and Crop Science
Genetics
Plant Science

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AU - Yamagata, Yoshiyuki

AU - Doi, Kazuyuki

AU - Yasui, Hideshi

AU - Yoshimura, Atsushi

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AB - To gain a comprehensive understanding of the genetic regulation of male gametogenesis, we screened and identified mutants for abnormal pollen development in rice (Oryza sativa L.). We gamma-irradiated spikelets of a japonica rice cultivar, Taichung 65, just before and after anthesis. Among 1,000 M2 lines, 24 lines were identified as mutants for pollen sterility. Progeny tests in M3 demonstrated that pollen sterility in 12 lines was controlled by single recessive genes, designated sps1-sps12 (sporophytic pollen sterility). In the remaining 12 lines, pollen semi-sterility was under the control of gametophytic genes, designated gps1-gps12 (gametophytic pollen sterility). Linkage analysis revealed that sps6, sps9, and sps12 were mapped on chromosomes 3, 9, and 7, respectively.

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Identification of mutants for abnormal pollen development in rice

Abstract

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