Identification of Full or Partially Waxy Wheat by Using Viscosity Ratio Index

IF 1.5 4区 农林科学 Q2 AGRONOMY Plant Breeding Pub Date : 2024-08-30 DOI:10.1111/pbr.13222
Xiangcun Zan, Yingying Chang, Yongxia Wang, Yumin Wang, Haibin Dong, Xueli Qi
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Abstract

The partially waxy wheat with single and double deletion of Wx gene have desirable texture in noodles. The selecting of partially waxy wheat with strong gluten has become one of the main targets in the breeding of high‐quality wheat for noodles. This study aimed to explore a method for identifying fully waxy or partially waxy wheat with different Wx gene deletion by using pasting properties. In this study, the viscosity ratio (VR) index was brought forward for the first time. The impacts of the eight allelic types with different Wx genes on pasting parameters were studied by using 60 double haploid (DH) lines from the same combination (Experiment I), and 85 samples consisted of main varieties and a few advanced lines from the Huanghuai wheat region (Experiment II). The results revealed the viscosity ratio was significantly different among allelic deletion types. More surprisingly, the wild type, three single deletion types, three double deletion types and full waxy type among the eight alleles, respectively, exhibited distinct distribution intervals for viscosity ratios, enabling the preliminary determination of specific Wx gene deletion types based on VR. Therefore, the VR value can serve as an effective index for identifying fully and partially waxy wheat lines during breeding selection, and it holds significant potential in the breeding of high‐quality wheat for noodles.
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利用粘度比指数识别全蜡或部分蜡质小麦
Wx 基因单缺失和双缺失的部分蜡质小麦具有理想的面条口感。选择具有强筋的部分蜡质小麦已成为优质面条用小麦育种的主要目标之一。本研究旨在探索一种方法,通过粘贴特性来鉴别不同 Wx 基因缺失的全蜡质或部分蜡质小麦。本研究首次提出了粘度比(VR)指标。通过使用来自同一组合的 60 个双单倍体(DH)品系(实验 I)和来自黄淮麦区的由主要品种和少数先进品系组成的 85 个样品(实验 II),研究了具有不同 Wx 基因的 8 个等位基因类型对粘度参数的影响。结果显示,等位基因缺失类型之间的粘度比差异显著。更令人惊奇的是,在 8 个等位基因中,野生型、3 个单缺失型、3 个双缺失型和全蜡型的粘度比分别表现出不同的分布区间,从而可以根据 VR 初步判断特定的 Wx 基因缺失类型。因此,在育种选育过程中,VR 值可作为识别全蜡型和部分蜡型小麦品系的有效指标,在优质面条用小麦育种中具有重要潜力。
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来源期刊
Plant Breeding
Plant Breeding 农林科学-农艺学
CiteScore
4.40
自引率
5.00%
发文量
74
审稿时长
3.0 months
期刊介绍: PLANT BREEDING publishes full-length original manuscripts and review articles on all aspects of plant improvement, breeding methodologies, and genetics to include qualitative and quantitative inheritance and genomics of major crop species. PLANT BREEDING provides readers with cutting-edge information on use of molecular techniques and genomics as they relate to improving gain from selection. Since its subject matter embraces all aspects of crop improvement, its content is sought after by both industry and academia. Fields of interest: Genetics of cultivated plants as well as research in practical plant breeding.
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