Generating fresh sweet-waxy corn by using molecular marker-assisted selection technology

LU Xiaozhuan; LI Chenchen; CHEN Ziqiang; GUO Xinrui; TIAN Dagang

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LU X Z, LI C C, CHEN Z Q, et al. Generating fresh sweet-waxy corn by using molecular marker-assisted selection technology [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−6

Citation:

LU X Z, LI C C, CHEN Z Q, et al. Generating fresh sweet-waxy corn by using molecular marker-assisted selection technology [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−6

LU X Z, LI C C, CHEN Z Q, et al. Generating fresh sweet-waxy corn by using molecular marker-assisted selection technology [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−6

Citation:

LU X Z, LI C C, CHEN Z Q, et al. Generating fresh sweet-waxy corn by using molecular marker-assisted selection technology [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−6

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Generating fresh sweet-waxy corn by using molecular marker-assisted selection technology

Biotechnology Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian　350003, China

Received Date: 2024-07-27
Accepted Date: 2024-10-16
Rev Recd Date: 2024-10-10

Available Online: 2024-11-12

Abstract

Abstract

Objective To generate new variety of corn that has both sweet and waxy kernels on the same ear of sweet and waxy corn, explore new ways of rice breeding and improvement, and build the Fujian sweet-waxy corn brand. Method Using the main material of Jingkenuo 2000, a high-quality glutinous corn variety, we have developed the new germplasm GMC013 through pedigree breeding. This germplasm was hybridized with the sweet corn variety Xuetian 7401 and self-pollinated. By employing molecular marker-assisted selection and field selection methods, we have consolidated the sweet gene sh2 and the glutinous gene wx from the starch synthesis pathway in corn, creating a new high-quality sweet and glutinous fresh-eating corn germplasm. Result Molecular marker-assisted selection technology has successfully developed sweet variety GM102 and glutinous varieties GM104 and GM112. Field experiments indicate that these inbred lines meet the quality and appearance grain type standards for sweet and glutinous varieties in terms of growth duration, plant height, ear height, ear length, ear thickness, fresh weight of 100 grains, and seed setting rate. Conclusion The use of molecular-assisted selection techniques, combined with field selection, can precisely and efficiently create new superior maize germplasm, providing important genetic resources and reserves for maize variety breeding in Fujian.
- Fresh sweet -waxy corn,
- Marker-assisted selection,
- sh2,
- wx

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References(21)

References

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