Genetic diversity and selection of heirloom tomato accessions based on the physical and biochemical fruit-related traits

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY
L. Constantino, G. D. Shimizu, Rafael Macera, Aida Satie Suzuki Fukuji, D. Zeffa, A. Koltun, L. Gonçalves
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Abstract

: Heirloom tomatoes are open-pollinated varieties bearing a wide diversity of colors and shapes that may be used by breeders aiming to improve physical and biochemical fruit traits. Hence, in this work heirloom tomato accessions were characterized, gathering information to genetic breeding programs focusing on human food. For that, 67 heirloom tomato accessions were evaluated for fruit size, fruit mass, fruit volume, color, vitamin C, titratable acidity, soluble solids content, phenolic compounds content, total flavonoid content, and antioxidant activity. The experiment was conducted in a randomized complete block design with three repetitions. Linear mixed model, Pearson’s correlation and hierarchical clustering were applied to data. Five groups were formed by Ward’s clustering method. The accession UEL 300 constituted group A, which had the greatest mass and volume fruit. Eight accessions formed group B and showed mostly yellow fruits. Group C was comprised of 13 accessions, which had the highest levels of carotenoids, vitamin C, and antioxidant activity. Thirty-three accessions that constituted group D did not stand out for any of the attributes, while 12 accessions into group E had the highest content of phenolic compounds and flavonoids, along with the highest ratio of soluble solids and acidity. Five accessions in this collection (UEL 296, UEL 146, UEL 238, UEL 231, and UEL 217) stood out for their biochemical traits. The wide diversity for physical and biochemical fruit traits can be explored in tomato breeding programs, seeking to develop new cultivars, and strengthening family farming.
基于果实相关物理生化性状的番茄传家宝遗传多样性与选择
传家宝西红柿是一种开放授粉的品种,具有多种颜色和形状,可以被育种者用来改善水果的物理和生化特性。因此,在这项工作中,传家宝番茄的特性,收集信息的遗传育种计划集中在人类食物。为此,对67份家宝番茄材料的果实大小、果实质量、果实体积、颜色、维生素C、可滴定酸度、可溶性固形物含量、酚类化合物含量、总黄酮含量和抗氧化活性进行了评价。实验采用随机完全区组设计,重复3次。采用线性混合模型、Pearson相关和分层聚类对数据进行分析。采用Ward聚类法将其分为5组。加入UEL 300为A组,果实质量和体积最大。B组为8株,果实以黄色为主。C组由13个品种组成,它们的类胡萝卜素、维生素C和抗氧化活性最高。组成D组的33份材料在任何属性上都不突出,而组成E组的12份材料的酚类化合物和类黄酮含量最高,可溶性固形物和酸度比例也最高。其中5个品种(UEL 296、UEL 146、UEL 238、UEL 231和UEL 217)的生化特性比较突出。番茄果实物理生化性状的多样性可在番茄育种、培育新品种和加强家庭农业等方面得到充分利用。
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来源期刊
Bragantia
Bragantia AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.40
自引率
8.30%
发文量
33
审稿时长
4 weeks
期刊介绍: Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).
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