{"title":"源自“dee -geo- wood -gen”的矮化等位基因sd1-d及其高等位基因SD1-in和SD1-ja对籼稻IR36干物质生产和光合形态特征的影响","authors":"Misa Kamimukai, Birendra Bahadur Rana, Mukunda Bhattarai, Masayuki Murai","doi":"10.1270/jsbbs.22016","DOIUrl":null,"url":null,"abstract":"<p><p><i>sd1-d</i> has been utilized to develop short-culmed <i>indica</i> varieties adaptable to higher fertilizer-applications. Its tall alleles <i>SD1-in</i> and <i>SD1-ja</i> are harbored in <i>indica</i> and <i>japonica</i> subspecies, respectively. <i>SD1-in</i> possesses a higher effect on elongating culm than <i>SD1-ja</i>. The <i>sd1-d</i> of <i>indica</i> IR36 was substituted with <i>SD1-in</i> or <i>SD1-ja</i> through recurrent backcrossing with IR36, and two tall isogenic lines (\"5867-36\" and \"Koshi-36\") were developed. IR36, 5867-36 and Koshi-36 were grown in a paddy field, and the effects of <i>sd1-d</i>, <i>SD1-in</i> and <i>SD1-ja</i> on morphological characteristics concerning dry-matter production and photosynthesis were compared mutually. <i>sd1-d</i> diminished dry weight of total brown rice/m<sup>2</sup> and total dry matter weights, but enhanced harvest indexes, compared with <i>SD1-in</i>. In IR36, shorter lengths of the first (flag) to third leaves, and more panicle-bearing stems, caused by <i>sd1-d</i>, compared with <i>SD1-in</i>-carrying 5867-36, and erect first leaves, not caused by <i>sd1-d</i>, could construct the canopy structure appropriate for obtaining a high rate of photosynthesis at an optimum LAI. Koshi-36 could be used for a mid-mother line to develop <i>indica</i> varieties adaptable to middle and low fertilizer-applications, due to higher effect of <i>SD1-ja</i> on yielding ability, compared with that of <i>sd1-d</i>, no breaking-type lodging, and resistances to diseases and pests.</p>","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":null,"pages":null},"PeriodicalIF":2.0000,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9868333/pdf/","citationCount":"0","resultStr":"{\"title\":\"Effects of dwarfing allele <i>sd1-d</i> originating from 'Dee-geo-woo-gen' and its tall alleles <i>SD1-in</i> and <i>SD1-ja</i> on morphological characteristics concerning dry-matter production and photosynthesis on the genetic background of <i>indica</i>-rice IR36.\",\"authors\":\"Misa Kamimukai, Birendra Bahadur Rana, Mukunda Bhattarai, Masayuki Murai\",\"doi\":\"10.1270/jsbbs.22016\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p><i>sd1-d</i> has been utilized to develop short-culmed <i>indica</i> varieties adaptable to higher fertilizer-applications. Its tall alleles <i>SD1-in</i> and <i>SD1-ja</i> are harbored in <i>indica</i> and <i>japonica</i> subspecies, respectively. <i>SD1-in</i> possesses a higher effect on elongating culm than <i>SD1-ja</i>. The <i>sd1-d</i> of <i>indica</i> IR36 was substituted with <i>SD1-in</i> or <i>SD1-ja</i> through recurrent backcrossing with IR36, and two tall isogenic lines (\\\"5867-36\\\" and \\\"Koshi-36\\\") were developed. IR36, 5867-36 and Koshi-36 were grown in a paddy field, and the effects of <i>sd1-d</i>, <i>SD1-in</i> and <i>SD1-ja</i> on morphological characteristics concerning dry-matter production and photosynthesis were compared mutually. <i>sd1-d</i> diminished dry weight of total brown rice/m<sup>2</sup> and total dry matter weights, but enhanced harvest indexes, compared with <i>SD1-in</i>. In IR36, shorter lengths of the first (flag) to third leaves, and more panicle-bearing stems, caused by <i>sd1-d</i>, compared with <i>SD1-in</i>-carrying 5867-36, and erect first leaves, not caused by <i>sd1-d</i>, could construct the canopy structure appropriate for obtaining a high rate of photosynthesis at an optimum LAI. Koshi-36 could be used for a mid-mother line to develop <i>indica</i> varieties adaptable to middle and low fertilizer-applications, due to higher effect of <i>SD1-ja</i> on yielding ability, compared with that of <i>sd1-d</i>, no breaking-type lodging, and resistances to diseases and pests.</p>\",\"PeriodicalId\":9258,\"journal\":{\"name\":\"Breeding Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2022-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9868333/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Breeding Science\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1270/jsbbs.22016\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Breeding Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1270/jsbbs.22016","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRONOMY","Score":null,"Total":0}
Effects of dwarfing allele sd1-d originating from 'Dee-geo-woo-gen' and its tall alleles SD1-in and SD1-ja on morphological characteristics concerning dry-matter production and photosynthesis on the genetic background of indica-rice IR36.
sd1-d has been utilized to develop short-culmed indica varieties adaptable to higher fertilizer-applications. Its tall alleles SD1-in and SD1-ja are harbored in indica and japonica subspecies, respectively. SD1-in possesses a higher effect on elongating culm than SD1-ja. The sd1-d of indica IR36 was substituted with SD1-in or SD1-ja through recurrent backcrossing with IR36, and two tall isogenic lines ("5867-36" and "Koshi-36") were developed. IR36, 5867-36 and Koshi-36 were grown in a paddy field, and the effects of sd1-d, SD1-in and SD1-ja on morphological characteristics concerning dry-matter production and photosynthesis were compared mutually. sd1-d diminished dry weight of total brown rice/m2 and total dry matter weights, but enhanced harvest indexes, compared with SD1-in. In IR36, shorter lengths of the first (flag) to third leaves, and more panicle-bearing stems, caused by sd1-d, compared with SD1-in-carrying 5867-36, and erect first leaves, not caused by sd1-d, could construct the canopy structure appropriate for obtaining a high rate of photosynthesis at an optimum LAI. Koshi-36 could be used for a mid-mother line to develop indica varieties adaptable to middle and low fertilizer-applications, due to higher effect of SD1-ja on yielding ability, compared with that of sd1-d, no breaking-type lodging, and resistances to diseases and pests.
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