麝香葡萄种群与集群和浆果相关性状的生物统计学评估,Plants

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麝香葡萄种群与集群和浆果相关性状的生物统计学评估
Plants ( IF 4.0 ) Pub Date : 2021-05-26 , DOI: 10.3390/plants10061067
Jiovan Campbell ₁ , Ali Sarkhosh ₂ , Fariborz Habibi ₃ , Ahmed Ismail _{1,

4} , Pranavkumar Gajjar ₁ , Ren Zhongbo ₁ , Violeta Tsolova ₁ , Islam El-Sharkawy ₁

Affiliation

在这项研究中，连续三年对90个穆斯卡丁葡萄基因型人群进行了花结构，簇和浆果相关性状的生物统计学评估。该种群由21个标准品种，60个育种系和9个葡萄x麝香葡萄球菌组成杂种（VM杂种）。群体的长度（CL）和宽度（CWI）特征在种群之间表现出细微的差异，估计范围分别为7.1 cm和4.6 cm。但是，集群权重（CWE），浆果/集群数（NB / C）和集群紧实度（CC）性状显示个体之间的差异更大，计算范围分别为205.6 g，32.6 B / C和24.1。有趣的是，除种子/浆果（NS / B）数量外，所有与浆果相关的性状在个体之间差异很大。NS / B性状在种群中显示出5.6个种子的狭窄范围。然而，浆果长度（BL），宽度（BWI），重量（BWE），种子/浆果重量（WS / B），硬度（FF）和干疤痕图案（SP）的特性显示出广泛的估计范围分别为21.2毫米，21.7毫米，25.4克，0.71克，0.21 N和82％。每个特征的正态分布分析表明，在单峰行为到多峰行为之间扩展了不同的分布模式。层次映射分析能够根据与群集和浆果相关的物理属性将种群分为几个进化枝。PCA认为，雌雄同体的（完美的）花结构与显示出大小和重量小的浆果（即适合葡萄酒生产的麝香葡萄碱基因型）的紧密簇相关。然而，雌性花的结构与簇簇相关，簇簇显示出大小和重量较大的浆果（即适合新鲜食用的麝香葡萄碱基因型）。这些模式独立于群集大小和权重字符而发生。这项研究是第一项在人群水平上评估麝香葡萄碱生物特征的研究，

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Biometrics Assessment of Cluster- and Berry-Related Traits of Muscadine Grape Population

In this study, biometrics assessment of flower structure, cluster-, and berry-related traits were evaluated in a population of 90 muscadine grape genotypes for three consecutive years. This population consisted of 21 standard cultivars, 60 breeding lines, and 9 Vitis x Muscadinia hybrids (VM hybrids). Cluster length (CL) and width (CWI) characteristics exhibited slight differences among the population, with a range estimated at 7.1 and 4.6 cm, respectively. However, cluster weight (CWE), number of berries/cluster (N.B/C), and cluster compactness (CC) traits showed more diversity between individuals with a calculated range of 205.6 g, 32.6 B/C, and 24.1, respectively. Interestingly, all berry-related traits greatly varied between individuals, excluding the number of seeds/berry (N.S/B) character. The N.S/B trait displayed a narrow range of 5.6 seeds within the population. However, characters of berry length (BL), width (BWI), weight (BWE), the weight of seeds/berry (W.S/B), firmness (FF), and dry scar pattern (SP) demonstrated a wide estimated range of 21.2 mm, 21.7 mm, 25.4 g, 0.71 g, 0.21 N, and 82%, respectively. Normal distribution analysis for each trait suggested different distribution patterns extended between unimodal to multimodal behavior. Hierarchical mapping analysis was able to classify the population into several clades based on physical cluster- and berry-related attributes. The PCA suggested that hermaphroditic (perfect) flower structure is associated with compact clusters exhibiting small berries in size and weight (i.e., muscadine genotypes suitable for wine production). However, female flower structure is associated with clusters displaying large berries in size and weight (i.e., muscadine genotypes appropriate for fresh consumption). These patterns occurred independently of cluster size and weight characters. This research is the first study evaluating muscadine biometrics characters at a population level, providing valuable information for market demand and muscadine breeding programs.

更新日期：2021-05-26

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