Title |
Construction of physical maps for the sex-specific regions of papaya sex chromosomes
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Published in |
BMC Genomics, May 2012
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DOI | 10.1186/1471-2164-13-176 |
Pubmed ID | |
Authors |
Jong-Kuk Na, Jianping Wang, Jan E Murray, Andrea R Gschwend, Wenli Zhang, Qingyi Yu, Rafael Navajas‒ Pérez, F Alex Feltus, Cuixia Chen, Zdenek Kubat, Paul H Moore, Jiming Jiang, Andrew H Paterson, Ray Ming |
Abstract |
Papaya is a major fruit crop in tropical and subtropical regions worldwide. It is trioecious with three sex forms: male, female, and hermaphrodite. Sex determination is controlled by a pair of nascent sex chromosomes with two slightly different Y chromosomes, Y for male and Yh for hermaphrodite. The sex chromosome genotypes are XY (male), XYh (hermaphrodite), and XX (female). The papaya hermaphrodite-specific Yh chromosome region (HSY) is pericentromeric and heterochromatic. Physical mapping of HSY and its X counterpart is essential for sequencing these regions and uncovering the early events of sex chromosome evolution and to identify the sex determination genes for crop improvement. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Spain | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Mexico | 1 | 3% |
Brazil | 1 | 3% |
Unknown | 38 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 6 | 15% |
Researcher | 6 | 15% |
Student > Doctoral Student | 5 | 13% |
Student > Bachelor | 5 | 13% |
Student > Postgraduate | 4 | 10% |
Other | 6 | 15% |
Unknown | 8 | 20% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 26 | 65% |
Biochemistry, Genetics and Molecular Biology | 2 | 5% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 3% |
Social Sciences | 1 | 3% |
Engineering | 1 | 3% |
Other | 0 | 0% |
Unknown | 9 | 23% |