Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.)
The genetic uniformity of cultivated cotton as a consequence of domestication and modern breeding makes it extremely vulnerable to abiotic challenges brought about by major climate shifts. To sustain productivity amidst worsening agro-environments, future breeding objectives need to seriously consid...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/7/1300 |
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| author | Junghyun Shim Nonoy B. Bandillo Rosalyn B. Angeles-Shim |
| author_facet | Junghyun Shim Nonoy B. Bandillo Rosalyn B. Angeles-Shim |
| author_sort | Junghyun Shim |
| collection | DOAJ |
| description | The genetic uniformity of cultivated cotton as a consequence of domestication and modern breeding makes it extremely vulnerable to abiotic challenges brought about by major climate shifts. To sustain productivity amidst worsening agro-environments, future breeding objectives need to seriously consider introducing new genetic variation from diverse resources into the current germplasm base of cotton. Landraces are genetically heterogeneous, population complexes that have been primarily selected for their adaptability to specific localized or regional environments. This makes them an invaluable genetic resource of novel allelic diversity that can be exploited to enhance the resilience of crops to marginal environments. The utilization of cotton landraces in breeding programs are constrained by the phenology of the plant and the lack of phenotypic information that can facilitate efficient selection of potential donor parents for breeding. In this review, the genetic value of cotton landraces and the major challenges in their utilization in breeding are discussed. Two strategies namely Focused Identification of Germplasm Strategy and Environmental Association Analysis that have been developed to effectively screen large germplasm collections for accessions with adaptive traits using geo-reference-based, mathematical modelling are highlighted. The potential applications of both approaches in mining available cotton landrace collections are also presented. |
| first_indexed | 2024-03-09T04:50:33Z |
| format | Article |
| id | doaj.art-0a8d156bc56547418bb263818329d2ee |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T04:50:33Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-0a8d156bc56547418bb263818329d2ee2023-12-03T13:10:41ZengMDPI AGPlants2223-77472021-06-01107130010.3390/plants10071300Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.)Junghyun Shim0Nonoy B. Bandillo1Rosalyn B. Angeles-Shim2Department of Plant and Soil Science, College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409-2122, USADepartment of Plant Sciences, North Dakota State University, Fargo, ND 58108-6050, USADepartment of Plant and Soil Science, College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409-2122, USAThe genetic uniformity of cultivated cotton as a consequence of domestication and modern breeding makes it extremely vulnerable to abiotic challenges brought about by major climate shifts. To sustain productivity amidst worsening agro-environments, future breeding objectives need to seriously consider introducing new genetic variation from diverse resources into the current germplasm base of cotton. Landraces are genetically heterogeneous, population complexes that have been primarily selected for their adaptability to specific localized or regional environments. This makes them an invaluable genetic resource of novel allelic diversity that can be exploited to enhance the resilience of crops to marginal environments. The utilization of cotton landraces in breeding programs are constrained by the phenology of the plant and the lack of phenotypic information that can facilitate efficient selection of potential donor parents for breeding. In this review, the genetic value of cotton landraces and the major challenges in their utilization in breeding are discussed. Two strategies namely Focused Identification of Germplasm Strategy and Environmental Association Analysis that have been developed to effectively screen large germplasm collections for accessions with adaptive traits using geo-reference-based, mathematical modelling are highlighted. The potential applications of both approaches in mining available cotton landrace collections are also presented.https://www.mdpi.com/2223-7747/10/7/1300landracescore collectionsfocused identification of germplasm strategyenvironmental association analysislandscape genomics |
| spellingShingle | Junghyun Shim Nonoy B. Bandillo Rosalyn B. Angeles-Shim Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.) Plants landraces core collections focused identification of germplasm strategy environmental association analysis landscape genomics |
| title | Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.) |
| title_full | Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.) |
| title_fullStr | Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.) |
| title_full_unstemmed | Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.) |
| title_short | Finding Needles in a Haystack: Using Geo-References to Enhance the Selection and Utilization of Landraces in Breeding for Climate-Resilient Cultivars of Upland Cotton (<i>Gossypium hirsutum</i> L.) |
| title_sort | finding needles in a haystack using geo references to enhance the selection and utilization of landraces in breeding for climate resilient cultivars of upland cotton i gossypium hirsutum i l |
| topic | landraces core collections focused identification of germplasm strategy environmental association analysis landscape genomics |
| url | https://www.mdpi.com/2223-7747/10/7/1300 |
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