Seed Coat Pattern QTL and Development in Cowpea (Vigna unguiculata [L.] Walp.)
Seed Coat Pattern QTL and Development in Cowpea (Vigna unguiculata [L.] Walp.)
复制标题
DOI：
10.3389/fpls.2019.01346
复制
发表时间：
2019-10-25
影响因子：
5.6
通讯作者：
Close, Timothy J.
中科院分区：
文献类型：
--
作者：
Herniter, Ira A.;Lo, Ryan;Close, Timothy J.
种子的外观是消费者对豇豆（Vigna unguiculata [L.] Walp.）。豇豆的种皮图案是一个研究了世纪的课题。本研究利用新的可用资源，包括作图群体，参考基因组和额外的基因组组装，以及高密度单核苷酸多态性基因分型平台，将各种种皮图案性状映射到三个位点，与之前确定的颜色因子（C），沃森（W）和荷斯坦（H）因子同时进行。已经鉴定了几种编码参与调节类黄酮生物合成途径的后期阶段的蛋白质的基因模型作为候选基因，包括用于C位点的碱性螺旋-环-螺旋基因（Vigun 07 g110700）、用于W位点的WD重复基因（Vigun 09 g139900）和用于H位点的E3泛素连接酶基因（Vigun 10 g163900）。一个模型的种皮发育，由六个不同的阶段，描述解释一些观察到的模式表型。
The appearance of the seed is an important aspect of consumer preference for cowpea (Vigna unguiculata [L.] Walp.). Seed coat pattern in cowpea has been a subject of study for over a century. This study makes use of newly available resources, including mapping populations, a reference genome and additional genome assemblies, and a high-density single nucleotide polymorphism genotyping platform, to map various seed coat pattern traits to three loci, concurrent with the Color Factor (C), Watson (W), and Holstein (H) factors identified previously. Several gene models encoding proteins involved in regulating the later stages of the flavonoid biosynthesis pathway have been identified as candidate genes, including a basic helix-loop-helix gene (Vigun07g110700) for the C locus, a WD-repeat gene (Vigun09g139900) for the W locus and an E3 ubiquitin ligase gene (Vigun10g163900) for the H locus. A model of seed coat development, consisting of six distinct stages, is described to explain some of the observed pattern phenotypes.