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‘红华青龙’与‘黑龙’火龙果属间杂种花、果实和茎性状的遗传分析

Genetic Analyses of Flower, Fruit, and Stem Traits of Intergeneric Hybrids Between 'Honghuagqinglong' and 'Heilong' Pitayas.

作者信息

Pu Xinyue, Khan Imran, Zhang Tiantian, Huang Guohua, Chen Jiayi, Ding Yu, Ji Xuewu, Zhang Zhike, Zhao Jietang, Hu Guibing, Sabir Irfan Ali, Qin Yonghua

机构信息

Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China.

Inner Mongolia Xuandatai Agricultural Technology Co., Ltd., Hohhot 010010, China.

出版信息

Plants (Basel). 2024 Dec 19;13(24):3546. doi: 10.3390/plants13243546.

DOI:10.3390/plants13243546
PMID:39771245
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11680067/
Abstract

Pitaya is renowned for its delicious taste, high nutritional value, and economic as well as ornamental appeal. Breeding new pitaya varieties can boost economic returns by appealing to consumers with diverse morphological traits. However, the genetic basis underlying key traits in intergeneric hybrids of pitaya has yet to be fully understood. This study investigates the genetic dynamics in flower, fruit, and stem traits, including segregation patterns and a mixed inheritance model for major and polygenic traits, in an intergeneric hybridization between 'Honghuagqinglong' (HHQL) () and 'Heilong' (HL) (). The study identified normal or skewed, normal distribution patterns in seven floral, fifteen fruit, and five stem traits, indicating their quantitative nature governed by multiple genes. Specifically, flower size and color exhibited a hereditary bias towards 'HL' characteristics, while 'HHQL' significantly influenced the coloration of fruit peel and pulp. Fruit weight and total soluble solids (TSS) content decreased, whereas stem traits exhibited broader and thicker dimensions with fewer thorns. This study offers valuable insights into genetic variation and the influence of major genes on flower, fruit, and stem traits between 'HHQL' and 'HL' intergeneric hybrids, providing a useful reference for parental selection in pitaya breeding programs.

摘要

火龙果以其美味的口感、高营养价值以及经济和观赏价值而闻名。培育新的火龙果品种可以通过吸引具有不同形态特征的消费者来提高经济回报。然而，火龙果属间杂种关键性状的遗传基础尚未完全明确。本研究调查了‘Honghuagqinglong’（HHQL）（）与‘Heilong’（HL）（）属间杂交中花、果实和茎性状的遗传动态，包括分离模式以及主基因和多基因性状的混合遗传模型。该研究在七个花性状、十五个果实性状和五个茎性状中鉴定出正态或偏态、正态分布模式，表明它们的数量性状受多个基因控制。具体而言，花的大小和颜色表现出对‘HL’特征的遗传偏向，而‘HHQL’对果皮和果肉的着色有显著影响。果实重量和总可溶性固形物（TSS）含量降低，而茎性状表现出更宽、更厚且刺更少的特征。本研究为‘HHQL’和‘HL’属间杂种之间的遗传变异以及主基因对花、果实和茎性状的影响提供了有价值的见解，为火龙果育种计划中的亲本选择提供了有用的参考。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/0bd1c71b6271/plants-13-03546-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/3fa23e0c7d58/plants-13-03546-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/8f180c7eee78/plants-13-03546-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/04d662f30794/plants-13-03546-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/115100cda33a/plants-13-03546-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/d1f3cc59f1e4/plants-13-03546-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/490e1ad0215a/plants-13-03546-g006a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/535ed6f33f3e/plants-13-03546-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/0bd1c71b6271/plants-13-03546-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/3fa23e0c7d58/plants-13-03546-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/8f180c7eee78/plants-13-03546-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/04d662f30794/plants-13-03546-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/115100cda33a/plants-13-03546-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/d1f3cc59f1e4/plants-13-03546-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/490e1ad0215a/plants-13-03546-g006a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/535ed6f33f3e/plants-13-03546-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d79/11680067/0bd1c71b6271/plants-13-03546-g008.jpg

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本文引用的文献

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2
Pitaya Nutrition, Biology, and Biotechnology: A Review.火龙果的营养、生物学与生物技术：综述
Int J Mol Sci. 2023 Sep 12;24(18):13986. doi: 10.3390/ijms241813986.
3
Breeding an underutilized fruit crop: a long-term program for .培育一种未得到充分利用的水果作物：一项针对……的长期计划
Hortic Res. 2022 Apr 11;9:uhac078. doi: 10.1093/hr/uhac078. eCollection 2022.
4
Maturation Process, Nutritional Profile, Bioactivities and Utilisation in Food Products of Red Pitaya Fruits: A Review.红肉火龙果果实的成熟过程、营养成分、生物活性及其在食品中的应用：综述
Foods. 2021 Nov 18;10(11):2862. doi: 10.3390/foods10112862.
5
Transcriptomic Analysis Reveals Key Genes Related to Betalain Biosynthesis in Pulp Coloration of Hylocereus polyrhizus.转录组分析揭示了与火龙果果肉着色中甜菜红素生物合成相关的关键基因。
Front Plant Sci. 2016 Jan 5;6:1179. doi: 10.3389/fpls.2015.01179. eCollection 2015.