Genetics of Testcrossed Streak Virus Resistance Carotene Quality Protein Maize

• 영문명: Genetics of Testcrossed Streak Virus Resistance Carotene Quality Protein Maize
• 발행기관: 한국육종학회
• 저자명: Sunday Ayodele Ige Bashir Omolaran Bello Jimoh Mahamood Michael Afolabi Aremu Charity
• 간행물 정보: 『Plant breeding and biotechnology』Vol.11 No.3, 155~167쪽, 전체 13쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2023.09.30

영문 초록

Development of Provitamin A quality protein maize (PVA-QPM) conferring resistance to maize streak virus (MSV)would reduce the prevalence of the disease, alleviate malnutrition and increase food security in sub-Saharan Africa. This study wasconducted to (i) evaluate early maturing PVA-QPM inbreds and their derived testcross hybrids for grain yield, MSV-resistant,carotenoids, and tryptophan contents, (ii) estimate the combining ability of the MSV-resistant PVA-QPM testcrosses for all traits. Fiveimproved open-pollinated MSV resistance cultivars and five early maturing PVA-QPM inbreds were crossed in a half-diallel fashionwithout reciprocals. The derived forty-five F1 topcrosses, ten parental materials, and two commercial hybrids that served as controlswere tested at the Lower Niger River Basin Development Authority in Oke-Oyi, Nigeria, during rain-fed of the year 2019 and 2020. ThePVA-QPM inbreds from TZEIORQ 13, TZEIORQ 29, and TZEQI 82 that were crossed with MSV resistance AK-9528-DMRSR andPop 28 SR appeared potentially useful combinations for enhancing grain yield, MSV-resistant, carotenoids, and tryptophan contents,Testcrossed TZEQI 82 × AK-9528-DMRSR POP 28 SR, TZEQI 82 × ACR. 91 SUWAN-1-SR C1 and TZEQI 82 × IK.91 TZL COMP3-Y C1 were most outstanding for all measured grain yield and nutrient contents. Additive genetic effects were preponderant overnon-additive genetic effects under artificial infection of MSV disease. These three promising MSV resistance PVA-QPM hybridsshould be evaluated under on-farm multiplication trials for stability performance and adaptation to reduce malnourishment and foodself-sufficiency in SSA. Also, further researches on genomic analyses of the superior testcrosses are desirable.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSION

ACKNOWLEDGEMENTS

REFERENCES

키워드

Carotenoid contents Quality protein maize Maize streak virus Grain yield