Genetic analysis of anthocyanin content in purple waxy corn (Zea mays L. var. ceratina Kulesh) kernel and cob

Anthocyanins of pigmented corn become a topic of increasing interest recently due to consumer awareness of their various health benefits. A better understanding on the gene effects to anthocyanin is an important for high antioxidants breeding programs. The objective of the present study was to determine gene effect controlling of anthocyanin content in purple waxy corn kernel and cob by generation mean analysis. For the cross of KND 10-4P (P1) × BW (P2), F2, and backcross generations were developed. All generations were planted in the randomized complete block design (RCB) with 3 replications at the Khon Kaen University, Thailand. Genetic analysis showed that the additive gene effects appeared to be a major contribution to the inheritance for pelargonidin-3-glucosid and peonidin-3-glucoside in the purple corn cob, indicate that selection for these anthocyanins is made at early breeding generations may be possible. Moreover, dominance and dominance × dominance epistatic effects were important for all studied traits in the corn kernel and cyanidin-3-glucoside in purple corn cob so initial selection can be carried out in large populations of later generations with increased homozygosity

Quantitative inheritance of total anthocyanin content in the tassel of small-ear waxy corn (Zea mays var. ceratina)

Information on the gene effects governing the inheritance of traits is very important for crop breeding and germplasm management. The objective of this study was to estimate genetic effects for total anthocyanin content in the tassel of small-ear waxy corn. Six generations (P1, P2, F1, F2, BC11, and BC12) were developed from two crosses of small-ear waxy corn (TB1 × TW1 and TC1 × TB3). TB1 and TB3 had purple tassels, and TW1 and TC1 had green tassels. All generations of each cross were evaluated under field conditions in the rainy season of 2017 and the dry season of 2017/2018. Season, generation, and their (S × G) interaction had significant effects in TB1 × TW1 and TC1 × TB3. For both crosses, generation had the largest effect on the total variance followed by season and S × G interaction. A three-parameter model was adequate for estimating genetic effects. Additive gene effects were significant for controlling the inheritance of total anthocyanin concentration in tassels. The significant additive effect suggested that selection for anthocyanin content in early generations will be effective, and hybrid combinations obtained from superior parental lines with unrelated genetic backgrounds may be an effective option to increase anthocyanin concentration in the tassels of small-ear waxy corn

Genetic analysis of anthocyanin content in purple waxy corn (Zea mays L. var. ceratina Kulesh) kernel and cob

Anthocyanins of pigmented corn become a topic of increasing interest recently due to consumer awareness of their various health benefits. A better understanding on the gene effects to anthocyanin is an important for high antioxidants breeding programs. The objective of the present study was to determine gene effect controlling of anthocyanin content in purple waxy corn kernel and cob by generation mean analysis. For the cross of KND 10-4P (P1) × BW (P2), F2, and backcross generations were developed. All generations were planted in the randomized complete block design (RCB) with 3 replications at the Khon Kaen University, Thailand. Genetic analysis showed that the additive gene effects appeared to be a major contribution to the inheritance for pelargonidin-3-glucosid and peonidin-3-glucoside in the purple corn cob, indicate that selection for these anthocyanins is made at early breeding generations may be possible. Moreover, dominance and dominance × dominance epistatic effects were important for all studied traits in the corn kernel and cyanidin-3-glucoside in purple corn cob so initial selection can be carried out in large populations of later generations with increased homozygosity.This article is published as Harakotr, B., B. Suriharn, K. Lertrat, and M. P. Scott. "Genetic analysis of anthocyanin content in purple waxy corn (Zea mays L. var. ceratina Kulesh) kernel and cob." SABRAO Journal of Breeding and Genetics 48, no. 2 (2016): 230-239.</p

Quantitative inheritance of total anthocyanin content in the tassel of small-ear waxy corn (Zea mays var. ceratina)

Information on the gene effects governing the inheritance of traits is very important for crop breeding and germplasm management. The objective of this study was to estimate genetic effects for total anthocyanin content in the tassel of small-ear waxy corn. Six generations (P1, P2, F1, F2, BC11, and BC12) were developed from two crosses of small-ear waxy corn (TB1 × TW1 and TC1 × TB3). TB1 and TB3 had purple tassels, and TW1 and TC1 had green tassels. All generations of each cross were evaluated under field conditions in the rainy season of 2017 and the dry season of 2017/2018. Season, generation, and their (S × G) interaction had significant effects in TB1 × TW1 and TC1 × TB3. For both crosses, generation had the largest effect on the total variance followed by season and S × G interaction. A three-parameter model was adequate for estimating genetic effects. Additive gene effects were significant for controlling the inheritance of total anthocyanin concentration in tassels. The significant additive effect suggested that selection for anthocyanin content in early generations will be effective, and hybrid combinations obtained from superior parental lines with unrelated genetic backgrounds may be an effective option to increase anthocyanin concentration in the tassels of small-ear waxy corn.This article is published as Duangpapeng P, Lertrat K, Lomthaisong K, Aguilar FS, Scott MP, Suriharn B (2020). Quantitative inheritance of total anthocyanin content in the tassel of small-ear waxy corn (Zea mays var. ceratina). SABRAO J Breed Genet 52:30-44.</p