scholarly journals Analyses of MADS-box Genes Suggest HvMADS56 to Regulate Lateral Spikelet Development in Barley

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2825
Author(s):  
Mohammed A. Sayed ◽  
Mohamed Allam ◽  
Quinn Kalby Heck ◽  
Ieva Urbanavičiūtė ◽  
Twan Rutten ◽  
...  
Keyword(s):  
Flower Development ◽  
Developmental Stages ◽  
Mads Box ◽  
Mads Box Genes ◽  
Inflorescence Architecture ◽  
Hordeum Vulgare L ◽  
Breeding Programs ◽  
Recent Interest ◽  
Lateral Spikelet

MADS-box transcription factors are crucial regulators of inflorescence and flower development in plants. Therefore, the recent interest in this family has received much attention in plant breeding programs due to their impact on plant development and inflorescence architecture. The aim of this study was to investigate the role of HvMADS-box genes in lateral spikelet development in barley (Hordeum vulgare L.). A set of 30 spike-contrasting barley lines were phenotypically and genotypically investigated under controlled conditions. We detected clear variations in the spike and spikelet development during the developmental stages among the tested lines. The lateral florets in the deficiens and semi-deficiens lines were more reduced than in two-rowed cultivars except cv. Kristina. Interestingly, cv. Kristina, int-h.43 and int-i.39 exhibited the same behavior as def.5, def.6, semi-def.1, semi-def.8 regarding development and showed reduced lateral florets size. In HOR1555, HOR7191 and HOR7041, the lateral florets continued their development, eventually setting seeds. In contrast, lateral florets in two-rowed barley stopped differentiating after the awn primordia stage giving rise to lateral floret sterility. At harvest, the lines tested showed large variation for all central and lateral spikelet-related traits. Phylogenetic analysis showed that more than half of the 108 MADS-box genes identified are highly conserved and are expressed in different barley tissues. Re-sequence analysis of a subset of these genes showed clear polymorphism in either SNPs or in/del. Variation in HvMADS56 correlated with altered lateral spikelet morphology. This suggests that HvMADS56 plays an important role in lateral spikelet development in barley.

scholarly journals Seven MADS-box Genes in Apple are Expressed in Different Parts of the Fruit

1999 ◽  
Vol 124 (1) ◽  
pp. 8-13 ◽  
Author(s):  
Jia-Long Yao ◽  
Yi-Hu Dong ◽  
Anders Kvarnheden ◽  
Bret Morris
Keyword(s):  
Developmental Stages ◽  
Expression Patterns ◽  
Mads Box ◽  
Mads Box Genes ◽  
Preferential Expression ◽  
The Core ◽  
Early Developmental ◽  
Dna Sequence Comparison ◽  
Different Parts

To study the role of MADS-box genes in developing apples (Malus ×domestica Borkh.), clones corresponding to seven different genes, MdMADS5 to MdMADS11, were isolated from a 2-day-old apple cDNA library. Through DNA sequence comparison, six genes were classified into the APETALA1 (AP1) group and one gene, MdMADS10, into the AGAMOUS (AG) group. Six of the genes, MdMADS5 to MdMADS10, were found to be preferentially expressed in fruit following pollination. These genes also showed differential expression patterns in core, cortex and skin of young fruit. For instance, MdMADS5, which is highly homologous to AP1, showed preferential expression in the cortex and skin tissues while MdMADS10, which is highly homologous to AGL11, showed exclusive expression in the core tissues. The gene MdMADS11 showed a similar expression level and pattern in flowers, fruit at several early developmental stages, and for different fruit tissues. The range of expression patterns suggests that the genes play different roles in apple development.

scholarly journals Expression and Function Studies of CYC/TB1-Like Genes in the Asymmetric Flower Canna (Cannaceae, Zingiberales)

2020 ◽  
Vol 11 ◽  
Author(s):  
Qianxia Yu ◽  
Xueyi Tian ◽  
Canjia Lin ◽  
Chelsea D. Specht ◽  
Jingping Liao
Keyword(s):  
Flower Development ◽  
Expression Patterns ◽  
Asymmetric Distribution ◽  
Inflorescence Architecture ◽  
Flower Primordia ◽  
Fertile Stamen ◽  
Spatiotemporal Expression ◽  
And Function

The asymmetric flower, lacking any plane of symmetry, is rare among angiosperms. Canna indica L. has conspicuously asymmetric flowers resulting from the presence of a half-fertile stamen, while the other androecial members develop as petaloid staminodes or abort early during development. The molecular basis of the asymmetric distribution of fertility and petaloidy in the androecial whorls remains unknown. Ontogenetic studies have shown that Canna flowers are borne on monochasial (cincinnus) partial florescences within a racemose inflorescence, with floral asymmetry likely corresponding to the inflorescence architecture. Given the hypothesized role of CYC/TB1 genes in establishing floral symmetry in response to the influence of the underlying inflorescence architecture, the spatiotemporal expression patterns of three Canna CYC/TB1 homologs (CiTBL1a, CiTBL1b-1, and CiTBL1b-2) were analyzed during inflorescence and floral development using RNA in situ hybridization and qRT-PCR. In the young inflorescence, both CiTBL1a and CiTBL1b-1 were found to be expressed in the bracts and at the base of the lateral florescence branches, whereas transcripts of CiTBL1b-2 were mainly detected in flower primordia and inflorescence primordia. During early flower development, expression of CiTBL1a and CiTBL1b-1 were both restricted to the developing sepals and petals. In later flower development, expression of CiTBL1a was reduced to a very low level while CiTBL1b-1 was detected with extremely high expression levels in the petaloid androecial structures including the petaloid staminodes, the labellum, and the petaloid appendage of the fertile stamen. In contrast, expression of CiTBL1b-2 was strongest in the fertile stamen throughout flower development, from early initiation of the stamen primordium to maturity of the ½ anther. Heterologous overexpression of CiTBL genes in Arabidopsis led to dwarf plants with smaller petals and fewer stamens, and altered the symmetry of mature flowers. These data provide evidence for the involvement of CYC/TB1 homologs in the development of the asymmetric Cannaceae flower.

Flower development in Coffea arabica L.: new insights into MADS-box genes

2014 ◽  
Vol 27 (2) ◽  
pp. 79-94 ◽  
Author(s):  
Raphael Ricon de Oliveira ◽  
Igor Cesarino ◽  
Paulo Mazzafera ◽  
Marcelo Carnier Dornelas
Keyword(s):  
Flower Development ◽  
Coffea Arabica ◽  
Mads Box ◽  
Mads Box Genes ◽  
Coffea Arabica L

The role of MADS-box genes in flower morphogenesis

2001 ◽  
Vol 23 (2) ◽  
pp. 241-253
Author(s):  
Ewa Urbańczyk-Wochniak ◽  
Zbigniew Przybecki
Keyword(s):  
Mads Box ◽  
Mads Box Genes ◽  
Flower Morphogenesis

scholarly journals ANÁLISE IN SILICO DOS GENES DA FAMÍLIA MADS-BOX EM ALFACE (Lactuca sativa L.)

2020 ◽  
Vol 7 (Especial) ◽  
pp. 41-54
Author(s):  
Solange Ságio ◽  
Micaele Rodrigues de Souza ◽  
André Almeida Lima ◽  
Horllys Gomes Barreto
Keyword(s):  
Gene Prediction ◽  
Phylogenetic Study ◽  
Mads Box ◽  
Mads Box Genes ◽  
Breeding Programs ◽  
Future Studies ◽  
Lactuca Sativa L ◽  
Mads Box Gene ◽  
Object Of Study ◽  
Flowering Process

High temperatures can negatively affect lettuce production by promoting early bolting, which leads to increased levels of latex accumulation in the leaves, causing them to become bitter. The lack of adaptation of this culture to such conditions made it an object of study for plant breeding programs, resulting in well succeeded studies. However, little is known about the genes that regulate lettuce flowering. A better understanding of the complex genic interactions involved in the process of lettuce floral initiation is of great importance, since it can enable the development of late-bolting cultivars through plant genetic transformation. MADS-box transcriptional factors are key flowering regulators and have been extensively studied during the flowering process in several species. Thus, this study aimed to identify and characterize the Lettuce MADS-box gene family through the use of bioinformatics tools. The computational analysis consisted in gene prediction, alignment, and phylogenetic analysis. 91 sequences of putative MADS-box genes were identified and characterized by a phylogenetic study of 20 MADS-box genes. Future studies comprising mutants for these genes in plant model species and in lettuce will enable a better understanding of the functions performed by these genes during lettuce flowering, as well as, a better comprehension of this process.

The Role of MADS-Box Genes in the Control of Flower and Fruit Development in Arabidopsis

2003 ◽  
pp. 20-27
Author(s):  
Soraya Pelaz ◽  
Sarah Liljegren ◽  
Adrienne Roeder ◽  
Cristina Ferrándiz ◽  
Anusak Pinyopich ◽  
...  
Keyword(s):  
Fruit Development ◽  
Mads Box ◽  
Mads Box Genes ◽  
Flower And Fruit Development

MADS-Box Genes Controlling Flower Development in Rice

Plant Biology ◽  
2003 ◽  
Vol 5 (1) ◽  
pp. 16-22 ◽  
Author(s):  
F. Fornara ◽  
G. Marziani ◽  
L. Mizzi ◽  
M. Kater ◽  
L. Colombo
Keyword(s):  
Flower Development ◽  
Mads Box ◽  
Mads Box Genes
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