Mapping of QTLs underlying flowering time in sorghum [&lt;i&gt;Sorghum bicolor&lt;/i&gt; (L.) Moench]

Mannai, Yousra El; Shehzad, Tariq; Okuno, Kazutoshi

doi:10.1270/jsbbs.62.151

Cited by 13 publications

(15 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…F 3 family lines from heterozygous F 2 plants, developed by El-Mannai et al [6] by making cross between "SC112"-an early parent from Ethiopia and "Kikuchi Zairai"-a late parent from Japan ( Fig. 1) for the genotypes at each of SSR marker loci (Table 1), were used for progeny test as explained by Lander and Botstein [31].…”

Section: Plant Materialsmentioning

confidence: 99%

“…A total of 18 markers flanked the nine QTLs on different chromosomes reported by El-Mannai et al [6] were primarily chosen for progeny test (Table 1). More than 60% of markers appeared to be dominant type SSR markers.…”

Section: Screening Of Ssr Markers and Polymorphism Analysismentioning

confidence: 99%

“…In the preceding study, El-Mannai et al [6] had identified nine QTLs for flowering time using F 2 population under natural day length, and the current study was conducted to validate these detected QTLs using F 3 family lines from heterozygous F 2 plants at each SSR marker loci in same growing environment through progeny test.…”

Section: Introductionmentioning

confidence: 98%

“…The flowering time as well as its photoperiodic regulation is one of the major factors in regional climatic adaptation of elite germplasm [4]. Recent evidence also showed that flowering time genes affect hybrid vigor and thus are likely to impact on yield [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…To date, a large number of QTLs have been reported to be associated with flowering time and photoperiod sensitivity [6,10,[12][13][14][15][16][17][18]. However, the contribution of detected QTLs to cultivar development has been the minimal, and only a few successful applications of marker assisted selection (MAS) for the improvement of quantitative traits have been noticed [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Validation of SSR Markers Linked to Flowering Time QTLs in Sorghum through Progeny Test

Uddin¹,

Okuno²

2015

JAST-A

View full text Add to dashboard Cite

Flowering time is critically important for crop yield, and detection of its genetic factors with strongly associated DNA markers is necessary in breeding programs. This study was undertaken to validate the quantitative trait loci (QTLs) underlying flowering time of sorghum based on the association between genotypes at SSR marker loci and flowering time in F 3 family lines from self-pollinated heterozygous F 2 plants developed by crossing between "SC112"-an early flowering variety from Ethiopia and "Kikuchi Zairai"-a late flowering variety from Japan. The results showed that the SSR markers linked to the QTLs on sorghum chromosomes 1, 2, 3, 5b, 7 and 8b were significantly (P < 0.05) associated with flowering time, and these markers and the QTLs reported previously are valid. On the other hand, the genotypes at the marker locus SB596 of qFT1-2 on chromosome 1 was not significantly associated with flowering time. The valid DNA markers, SB258 in qFT1-1, SB1512 in qFT2, SB1839 in qFT3, SB3369 in qFT5b, SB4096 in qFT7 and SB4540 and SB4660 in qFT8b, might be useful for DNA-marker assisted breeding.

show abstract

Section: Plant Materialsmentioning

confidence: 99%

Section: Screening Of Ssr Markers and Polymorphism Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Validation of SSR Markers Linked to Flowering Time QTLs in Sorghum through Progeny Test

Uddin¹,

Okuno²

2015

JAST-A

View full text Add to dashboard Cite

show abstract

Sweet sorghum ideotypes: genetic improvement of the biofuel syndrome

Anami

Zhang

Xia

et al. 2015

Food and Energy Security

View full text Add to dashboard Cite

Compared to other potential feedstocks such as sugarcane, sugar beet, maize, and watermelon, sweet sorghum possesses higher levels of directly fermentable reducing sugars within the culm and the ability to accumulate high biomass under low-input production systems. In addition, it is tolerant to drought and has more efficient utilization of solar radiation and nitrogen-based fertilizers than maize and sugar cane on marginal lands that are not optimal for food production. These collectively make sweet sorghum to be considered with huge potential as a biofuel crop. Novel phenotypes generated during plant domestication and continued crop improvements via artificial selection constitute the domestication syndrome (Am. J. Bot., 101, 2014, 1711). Here, we draw an analogy and introduce the term the biofuel syndrome to refer to a suite of sweet sorghum traits, such as plant architecture (root, leave, and stem), flowering time and maturity as well as biomass bioconversion efficiency, that are associated with biofuel production and distinguish it from grain and forage sorghum traits. We discuss the biofuel syndrome amenable for targeted genetic modulation and what is currently known about the genetics and genomics of these traits as a potential route to optimize sweet sorghum for biofuel production. Continuous availability of sweet sorghum, transport and storing much mass and minimizing the postharvest loss of fermentable sugars are fundamental to exploiting sweet sorghum as a bioenergy crop. Due to the relatively short history of sweet sorghum breeding, we consider the development of ideotypes adapting to various phenological requirements to maximize the rapid deployment of sweet sorghum for biofuel production.

show abstract

Genomics and Bioinformatics Resources

Rajendrakumar

Rakshit

2015

Sorghum Molecular Breeding

View full text Add to dashboard Cite

Mapping of QTLs underlying flowering time in sorghum [<i>Sorghum bicolor</i> (L.) Moench]

Cited by 13 publications

References 30 publications

Validation of SSR Markers Linked to Flowering Time QTLs in Sorghum through Progeny Test

Validation of SSR Markers Linked to Flowering Time QTLs in Sorghum through Progeny Test

Sweet sorghum ideotypes: genetic improvement of the biofuel syndrome

Genomics and Bioinformatics Resources

Contact Info

Product

Resources

About