Phenotypic and genetic analysis of wheat near-isogenic lines in awn length

doi:10.14088/j.cnki.issn0439-8114.2023.10.002

Abstract

Abstract: A pair of near-isogenic lines CSAM1 （long awn） and CSAM2 （short awn） with different awn length were used as materials to investigate their character and photosynthetic ability, and genetic analysis of awn length was carried out. The results showed that the plant height, plant type, ear length, heading date, flowering date, spikelet number and grain number per spike were no significant difference between CSAM1 and CSAM2, and the difference of awn length was highly significant （P<0.01）. The photosynthetic capacity and 1 000-grain weight of CSAM1 were higher than those of CSAM2. Genetic analysis showed that the inheritance of awn length character was controlled by a single gene, short awn was dominant and long awn was recessive.

Key words: common wheat（Triticum aestivum L.）, awn length, near isogenic lines, genetic analysis

CLC Number:

S512.1

CHEN Zhen-zhen, ZHOU Guo-qin, CHEN Jin-ping, SHI Shou-she, XIE Xu-dong, SHEN Guan-yu. Phenotypic and genetic analysis of wheat near-isogenic lines in awn length[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(10): 5-8.

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