Rich allelic variations of Viviparous-1A and their associations with seed dormancy/pre-harvest sprouting of common wheat

Chang, Cheng; Zhang, Haiping; Zhao, Qiuxia; Feng, J. M.; Si, Hongqi; Lu, Jie; Ma, Chunyan

doi:10.1007/s10681-011-0348-7

Cited by 32 publications

(25 citation statements)

References 25 publications

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“…McKibbin et al (2002) reported that the majority of transcripts of Vp-1 homologues in modern wheat and ancestral species are mis-spliced, possibly contributing to susceptibility to preharvest sprouting. Whilst the Vp-1 locus does not appear to have figured strongly in PHS and dormancy QTL mapping studies, Yang et al (2007Yang et al ( , 2014 and Chang et al (2011) have presented evidence that allelic variants of Vp-1B and Vp-1A are associated with resistance to sprouting. These studies were conducted using collections of cultivars and should be validated in specifically constructed populations.…”

Section: Grain Dormancymentioning

confidence: 99%

Wheat grain preharvest sprouting and late maturity alpha-amylase

Mares

Mrva

2014

Planta

138

176

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Preharvest sprouting (PHS) and late maturity α-amylase (LMA) are the two major causes of unacceptably high levels of α-amylase in ripe wheat grain. High α-amylase activity in harvested grain results in substantially lower prices for wheat growers and at least in the case of PHS, is associated with adverse effects on the quality of a range of end-products and loss of viability during storage. The high levels of α-amylase are reflected in low falling number, the internationally accepted measure for grain receival and trade. Given the significant losses that can occur, elimination of these defects remains a major focus for wheat breeding programs in many parts of the world. In addition, the genetic, biochemical and molecular mechanisms involved in the control of PHS and LMA as well as the interactions with environmental factors have attracted a sustained research interest. PHS and LMA are independent, genetically controlled traits that are strongly influenced by the environment, where the effects of particular environmental factors vary substantially depending on the stage of grain development and ripening. This review is a summary and an assessment of results of recent research on these important grain quality defects.

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Section: Grain Dormancymentioning

confidence: 99%

Wheat grain preharvest sprouting and late maturity alpha-amylase

Mares

Mrva

2014

Planta

138

176

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“…The most important loci, which control PHS tolerance, are located on three homologous chromosomes, 3A, 3B, and 3D (JAISLWAL et al, 2012), but 4A chromosome was also mentioned for containing the Phs gene (KUWAL et al, 2012). However, viviparous-1 gene family is associated with PHS tolerance in several cereals species (XIA et al, 2008;CHANG et al, 2011). On wheat the R genes, which are responsible for grain color, are also the biggest contributors to PHS tolerance (FOLEY;FENNIMORE, 1998;FLINTHAM et al, 2002).…”

Section: Resultsmentioning

confidence: 99%

Molecular marker linked to the rb1 gene and association with pre-harvest sprouting tolerance in wheat

Pellizzaro¹,

Braccini

Vieira

et al. 2016

Biosci. J.

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ABSTRACT:The objective of this study was to identify microsatellites molecular markers linked to R genes, that confer the wheat grain color and evaluate the association with pre-harvest sprouting tolerance. This study was conducted with a F 2 population with 203 plants, derived from the cross between PFAU x CD0666 genotypes, which segregates for one grain color gene. Were analyzed 43 molecular markers located in regions that containing R genes on 3B and 3D chromosomes. The Xbarc344 molecular marker was identified as linked to the R gene at a distance of 26.1 cM with 83.25% of selection efficiency. From the phenotypic analysis was confirmed the association between grain color with Xbarc344 molecular marker, however, there was no association between Xbarc344 with pre-harvest sprouting tolerance. Also, there was no association between grain color with pre-harvest sprouting tolerance. Although the grain color in wheat is a trait easy to select, it is known that not all R genes are involved with pre-harvest sprouting tolerance. Therefore, it is important the genetic mapping and specific evaluation of each R gene with pre-harvest sprouting tolerance. Thus, the molecular markers identified as associated with each R gene can be used to select plants that contain such genes, since it is not possible to identify phenotypically which R gene each plant has.

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“…Периоды покоя семян и УкПП наиболее тесно ассоциированы с рядом аллелей Vp-1B (Xia et al, 2009;Chang et al, 2010), а также с Vp-1A-локусом (Chang et al, 2011). Период покоя семян и УкПП можно улучшить путем встраивания в хромосому пшеницы Vp-1-генов от овсюга (Avena fatua) (McKibbin et al, 2002) или кукурузы (Zea mays) (Huang et al, 2012).…”

Section: факторы стабильности высокого числа паденияunclassified

Approaches to improve wheat grain quality: breeding for falling number

Krupnov¹,

Krupnova²

2015

Vestn. VOGiS

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Agricultural research institute for South-East regions�� Saratov�� russiaFalling number (Fn� reflects the level of al�ha amylase activity in grain. The main factor res�onsible for high α amylase levels and low Fn values is visible or hidden �reharvest s�routing (PHS� under adverse weather conditions. in recent decades�� great �rogress has been made in the understanding of biochemical and molecular �rocesses accom�anying PHS and the genetic control of �reharvest s�routing resistance (PHSr� and Fn�� as well as in the develo�ment of methods of breeding for PHSr and Fn. However�� breeding for these traits and the corres�onding theoretical studies have not yet been �ro�erly develo�ed or reflected in the russian literature. The �ur�ose of the review is to fill this ga�. it illustrates the genetic com�lexity and context de�endence of the PHSr and Fn traits and of major factors im�airing Fn. A s�ecific feature of breeding for high PHSr and Fn is that it involves elimination of late maturity α-amylase (LMA� genoty�es in choosing �arents for crossing and from early hybrid generations; choice of donors of target traits with regard to their genetic diversity; methods of evaluation of varieties and lines for PHSr and Fn under different environmental conditions; determination of F 2 �o�ulation size with regard to combination of PHSr�� Fn�� high �erformance�� grain quality�� and other commercial traits. new methods and a��roaches in breeding o�en new �ros�ects. They include the doubled ha�loid (DH� method�� allowing homozygotes to be obtained from early hybrid generations; and DnA technologies�� which �ermit genetically reasonable selection of PHSr and Fn donors�� yramiding of desirable alleles�� and efficient selection of desired offs�ring using closely lin�ed molecular mar�ers.Key words�� al�ha amylase; �reharvest s�routing resistance; falling number; molecular mar�ers.Число падения (Ч�� отражает уровен�� активности ал��фа-амилазы в зерне/муке и является международным стандартом ка�ества зерна. Чем ниже Ч�� тем ниже ка�ество зерна и его цена. Главные при�ины снижения Ч� -видимое или скрытое преду�оро�ное прорастание (�� в условиях не�лагоприятной погоды. Реша�щу� рол�� в полу�ении ста�ил��но высокого Ч� играет селекция на устой�ивост�� к преду�оро�ному прорастани� (ук�� а также непосредственно на Ч�. В последние десятилетия достигнут �ол��шой прогресс в понимании �иохими�еских и молекулярных процессов�� происходящих при ��; изу�ении генети�еского контроля ук�� и Ч�� в разра�отке методов селекции на ук�� и Ч�. В России селекция на эти признаки и соответству�щие теорети�еские исследования еще не полу�или должного развития и отражения в литературе. �оказаны генети�еская сложност�� и контекст-зависимост�� признаков ук�� и Ч�. Специфика селекции на высокий уровен�� ук�� и Ч� вкл��ает удаление LMA-генотипов (LMA�� late maturity α-amylase� при под�оре родителей для скрещивания и в ранних поколениях ги�ридов�� вы�ор генети�ески разли�ных доноров целевых признаков�� методы оценки сортов и линий на ук�� и Ч� в разных условиях в...

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Rich allelic variations of Viviparous-1A and their associations with seed dormancy/pre-harvest sprouting of common wheat

Cited by 32 publications

References 25 publications

Wheat grain preharvest sprouting and late maturity alpha-amylase

Wheat grain preharvest sprouting and late maturity alpha-amylase

Molecular marker linked to the rb1 gene and association with pre-harvest sprouting tolerance in wheat

Approaches to improve wheat grain quality: breeding for falling number

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