caa a22 4500 477133428 CHVBK 20180405111710.0 cr unu---uuuuu 170330e19970301xx s 000 0 eng 10.1023/A:1002963506818 doi (NATIONALLICENCE)springer-10.1023/A:1002963506818 A gene complex for annual habit in sugar beet (Beta vulgaris L.) [Elektronische Daten] [Jun Abe, Guo-Ping Guan, Yoshiya Shimamoto] Annual habit in sugar beet has been shown to be controlled by a dominant gene, B, which induces bolting under long days without the cold requirement usually essential for biennial cultivars. The induction of bolting by B, however, is often influenced by both environmental and genetic factors. We studied the genetic basis for bolting suppression, caused by delayed planting, in lines derived from a cross between annual and biennial lines. The F2 progeny of a late-bolting F1 plant yielded an unexpected segregation ratio of annuality from monogenic inheritance when planted in late May, there being an excess of non-bolting biennials, although the expected segregation was observed in the late April sowing. Bolting suppression was caused by restricted daylengths due to delayed planting because the segregation was normal under artificially induced long days. The analysis with Idh1, an isozyme marker proximal to B, demonstrated that heterozygous B plants were more susceptible to bolting suppression due to delayed planting than homozygous B plants. The results suggest that bolting suppression was controlled by a number of genes responsible for long daylength requirement, one of which was closely linked to B and formed a gene complex for annuality. The annual habit was controlled singly by B under long days but modified by the genes for long daylength requirement under restricted daylengths. Kluwer Academic Publishers, 1997 annuality nationallicence Beta vulgaris nationallicence gene complex nationallicence long days requirement nationallicence sugar beet nationallicence vernalization nationallicence Abe Jun Laboratory of Plant Genetics and Evolution, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan aut Guan Guo-Ping Laboratory of Plant Genetics and Evolution, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan aut Shimamoto Yoshiya Laboratory of Plant Genetics and Evolution, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan aut Euphytica Kluwer Academic Publishers 94/2(1997-03-01), 129-135 0014-2336 94:2<129 1997 94 10681 https://doi.org/10.1023/A:1002963506818 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002963506818 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abe Jun Laboratory of Plant Genetics and Evolution, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan aut NATIONALLICENCE 700 1- Guan Guo-Ping Laboratory of Plant Genetics and Evolution, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan aut NATIONALLICENCE 700 1- Shimamoto Yoshiya Laboratory of Plant Genetics and Evolution, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 94/2(1997-03-01), 129-135 0014-2336 94:2<129 1997 94 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer