《Table 1–Phenotypic and genetic analysis of early leaf senescence gene els1.》

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《Mapping a leaf senescence gene els1 by BSR-Seq in common wheat》

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In our breeding population，we identified an F3family that segregated in a 3 normal:1 early leaf senescent ratio and segregation at a single locus was confirmed by progeny tests（Table 1）.Early leaf senescence in line homozygous F3:4line M114 began on bottom leaves at the tillering stage（Fig.1-A，B）and became very evident by the booting stage with lower leaves gradually drying from bottom leaves.In contrast，a representative normal line F3:4（W301）remained green and healthy.The F1plants of the cross M114/W301 were normal indicating recessive inheritance of the early senescence phenotype.The F2population of M114/W301 segregated in a3:1 ratio（Table 1）.These results suggest that early leaf senescence of M114 is conferred by a single recessive gene，provisionally designated els1.