Line 98DHTCL55, a triticale variety developed from pollen
Triticale is human-created cereal very adapted to arid and semi-arid areas, known for its tolerance to drought and its resistance to diseases and insects, mainly Hessian fly. The limiting factor for triticale use by farmers and consumers in Morocco remains the quality, seed size and colour. Genetic...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
National Institute of Agronomic Research "INRA" Morocco
2022-06-01
|
| Series: | African and Mediterranean Agricultural Journal - Al Awamia |
| Subjects: | |
| Online Access: | https://revues.imist.ma/index.php/Afrimed/article/view/33276 |
| _version_ | 1797793636783489024 |
|---|---|
| author | Jamal El Haddoury |
| author_facet | Jamal El Haddoury |
| author_sort | Jamal El Haddoury |
| collection | DOAJ |
| description | Triticale is human-created cereal very adapted to arid and semi-arid areas, known for its tolerance to drought and its resistance to diseases and insects, mainly Hessian fly.
The limiting factor for triticale use by farmers and consumers in Morocco remains the quality, seed size and colour. Genetic improvement through crosses between parents with white grains and high yield potential cultivars aims to produce varieties that are productive with good technological quality. Doubled haploid technique was used for rapid advancement of cross products. From 32 F1 hybrids, 560 haploid plants were produced; those with chromosomal abnormalities were eliminated (aneuploidy and albinos plants). After colchicine treatment, doubled haploids were multiplied in a greenhouse and then in the field at the experimental station of Sidi El Aïdi (Near Settat, Morocco). During these two years of multiplication, selection was made, based on ploidy level, spike fertility, morphological structure, and colour and seed size. This allowed the selection of 40 high-performing doubled haploid lines for preliminary yield trials. The results of the advanced yield test show the efficiency of the selection carried out on fully homozygous fixed lines. At the end, 20 doubled haploid lines have a yield percentage equal to or greater than Beagle and Borhane. The results of the advanced yield trials have allowed the selection of six doubled haploid lines, which were presented to the official catalogue for registration. The choice of lines presented to registration was dictated by their results recorded in the semi-arid experimental stations. After two years of evaluation in the catalogue trials, the line ''98HDTCL55'' was accepted for registration and released under the name of “Maroua”. This study showed that the production of double Haploid lines is the fastest method for the genetic improvement of triticale since the period between crosses and presentation to catalogue for registration was only 6 years compare to 12 years that are required for releasing Triticale varieties under conventional methods. |
| first_indexed | 2024-03-13T02:50:11Z |
| format | Article |
| id | doaj.art-1ecf8886e88143e2803680fb1725d9da |
| institution | Directory Open Access Journal |
| issn | 2658-9184 |
| language | English |
| last_indexed | 2024-03-13T02:50:11Z |
| publishDate | 2022-06-01 |
| publisher | National Institute of Agronomic Research "INRA" Morocco |
| record_format | Article |
| series | African and Mediterranean Agricultural Journal - Al Awamia |
| spelling | doaj.art-1ecf8886e88143e2803680fb1725d9da2023-06-28T12:29:04ZengNational Institute of Agronomic Research "INRA" MoroccoAfrican and Mediterranean Agricultural Journal - Al Awamia2658-91842022-06-01013513614810.34874/IMIST.PRSM/afrimed-i135.3327615798Line 98DHTCL55, a triticale variety developed from pollenJamal El Haddoury0INRA / Centre Régional de la Recherche Agronomique de SettatTriticale is human-created cereal very adapted to arid and semi-arid areas, known for its tolerance to drought and its resistance to diseases and insects, mainly Hessian fly. The limiting factor for triticale use by farmers and consumers in Morocco remains the quality, seed size and colour. Genetic improvement through crosses between parents with white grains and high yield potential cultivars aims to produce varieties that are productive with good technological quality. Doubled haploid technique was used for rapid advancement of cross products. From 32 F1 hybrids, 560 haploid plants were produced; those with chromosomal abnormalities were eliminated (aneuploidy and albinos plants). After colchicine treatment, doubled haploids were multiplied in a greenhouse and then in the field at the experimental station of Sidi El Aïdi (Near Settat, Morocco). During these two years of multiplication, selection was made, based on ploidy level, spike fertility, morphological structure, and colour and seed size. This allowed the selection of 40 high-performing doubled haploid lines for preliminary yield trials. The results of the advanced yield test show the efficiency of the selection carried out on fully homozygous fixed lines. At the end, 20 doubled haploid lines have a yield percentage equal to or greater than Beagle and Borhane. The results of the advanced yield trials have allowed the selection of six doubled haploid lines, which were presented to the official catalogue for registration. The choice of lines presented to registration was dictated by their results recorded in the semi-arid experimental stations. After two years of evaluation in the catalogue trials, the line ''98HDTCL55'' was accepted for registration and released under the name of “Maroua”. This study showed that the production of double Haploid lines is the fastest method for the genetic improvement of triticale since the period between crosses and presentation to catalogue for registration was only 6 years compare to 12 years that are required for releasing Triticale varieties under conventional methods.https://revues.imist.ma/index.php/Afrimed/article/view/33276triticale héxaploïdehaplodiploïdisationhaploïdes doublésinscription de la variété maroua |
| spellingShingle | Jamal El Haddoury Line 98DHTCL55, a triticale variety developed from pollen African and Mediterranean Agricultural Journal - Al Awamia triticale héxaploïde haplodiploïdisation haploïdes doublés inscription de la variété maroua |
| title | Line 98DHTCL55, a triticale variety developed from pollen |
| title_full | Line 98DHTCL55, a triticale variety developed from pollen |
| title_fullStr | Line 98DHTCL55, a triticale variety developed from pollen |
| title_full_unstemmed | Line 98DHTCL55, a triticale variety developed from pollen |
| title_short | Line 98DHTCL55, a triticale variety developed from pollen |
| title_sort | line 98dhtcl55 a triticale variety developed from pollen |
| topic | triticale héxaploïde haplodiploïdisation haploïdes doublés inscription de la variété maroua |
| url | https://revues.imist.ma/index.php/Afrimed/article/view/33276 |
| work_keys_str_mv | AT jamalelhaddoury line98dhtcl55atriticalevarietydevelopedfrompollen |